fix(s7commplus): restore V1 challenge wire layout by gijzelaerr · Pull Request #841 · gijzelaerr/python-snap7

gijzelaerr · 2026-08-19T14:02:44Z

Summary

restore the V1 SessionKey GET_VAR_SUBSTREAMED challenge-request layout
encode the sequence field as VLQ and retain the three-byte fill used by the working S7-1200 capture
correlate responses across non-fatal SystemEvents and add capture-derived regression coverage
propagate transport and protocol failures instead of silently treating affected DBs as valueless
align async exception types with the synchronous transport
reconnect and retry async browse operations once after a PLC connection reset, matching the synchronous client
add a changelog entry

Root cause

The final refactor in #775 reused the TLS/V2 substreamed request builder for the V1 SessionKey legitimation challenge. That changed the sequence field from a one-byte VLQ to a two-byte integer and changed the fill from three to four bytes. In the latest #710 capture, the S7-1200 accepts SessionKey setup and session activation, rejects this two-byte-longer challenge request with a V254 SystemEvent, and resets the TCP connection.

The corrected request matches the earlier capture that the same PLC accepted byte-for-byte. Follow-up testing also found that async framing and correlation failures used generic RuntimeError exceptions, allowing browse to misclassify them as valueless DBs. The sync and async paths now share the same typed error contract and bounded reconnect behavior.

This advances the handshake and fixes deterministic response-handling gaps, but does not resolve every S7-1200/S7-1500 session and data-access failure tracked in #710.

Validation

full suite: 1,847 passed, 78 skipped
focused error and reconnect tests: 22 passed
full pre-commit suite passed
source distribution and wheel built successfully

Hardware validation requested

@xBiggs @bvanelli could you please test this branch on your S7-1200 hardware, especially the original s7commplus.Client().connect() plus browse() reproduction from #710? A db_read() / db_write() check would also be useful if convenient.

pip install --upgrade "python-snap7 @ git+https://github.com/gijzelaerr/python-snap7.git@fix-v1-sessionkey-challenge-layout"

Progresses #710.

xBiggs · 2026-08-19T14:47:29Z

@gijzelaerr

browse():

DEBUG:snap7.connection:TCP connected to 192.168.0.1:102
DEBUG:snap7.connection:Sent COTP Connection Request
DEBUG:snap7.connection:Negotiated PDU size: 1024
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc1, length=2
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc2, length=16
DEBUG:snap7.connection:Received COTP Connection Confirm
INFO:snap7.connection:Connected to 192.168.0.1:102, PDU size: 1024
DEBUG:s7commplus.connection:=== InitSSL === sending (26 bytes): 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 33 bytes: 03 00 00 21 02 f0 80 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=38 payload (34 bytes): 02 f0 80 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== InitSSL === received (31 bytes): 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:InitSSL response: version=V1, data_length=23
DEBUG:s7commplus.connection:InitSSL response body (27 bytes): 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === sending (192 bytes): 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 199 bytes: 03 00 00 c7 02 f0 80 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=215 payload (211 bytes): 02 f0 80 72 01 00 c8 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 10 1e 48 e9 79 28 91 a7 77 95 ef f1 67 f1 cd 9e 3a 10 e7 54 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === received (208 bytes): 72 01 00 c8 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 10 1e 48 e9 79 28 91 a7 77 95 ef f1 67 f1 cd 9e 3a 10 e7 54 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response: version=V1, data_length=200
DEBUG:s7commplus.connection:CreateObject response body (204 bytes): 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 10 1e 48 e9 79 28 91 a7 77 95 ef f1 67 f1 cd 9e 3a 10 e7 54 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response header: opcode=0x32 function=0x04CA seq=1 transport=0x36
DEBUG:s7commplus.connection:CreateObject response: return_value=0 object_ids=['0x39b', '0x3c2']
DEBUG:s7commplus.connection:Session created: id=0x0000039B (923), version=V1
INFO:s7commplus.connection:ServerSessionVersion captured (84 bytes)
INFO:s7commplus.connection:Public key fingerprint captured: 01:BD426B091F08731A
INFO:s7commplus.connection:Session challenge captured (20 bytes): 101e48e9792891a77795eff167f1cd9e3a10e754
INFO:s7commplus.connection:SessionKey auth blob generated (180 bytes)
INFO:s7commplus.connection:SecurityKey blob included in session setup, IntegrityId tracking enabled
DEBUG:s7commplus.connection:=== SetupSession === sending (392 bytes): 72 02 01 80 31 00 00 05 42 00 00 00 02 00 00 03 9b 34 00 00 03 9b 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 de d0 cd b0 c8 fc 90 f3 1a 8e 23 00 04 82 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 82 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 2c ee 00 1e 3e 84 64 ef 01 01 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 5b 45 c1 4d aa 65 20 d7 ae 81 3d 52 af e5 65 5d db 93 31 b9 a6 c7 28 ec 3f 05 7b db de dc c0 57 9f a8 56 0c 5e 3a f7 89 70 db 8d d4 89 97 bb 76 3f e3 d4 b9 0e d2 12 ad 8b 02 32 39 90 92 9c c9 af de d2 81 a4 d7 7a 25 7c 2a c6 79 92 35 f2 34 7c 99 5f b1 b4 0a 9a 19 b8 80 18 a2 60 cd e0 43 02 8d db 25 01 d4 b8 a3 35 39 c3 64 f8 dc 63 98 ca 40 62 45 a1 4c 9c a8 f9 b1 64 d7 ac 75 08 69 1e 36 ed a2 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 00 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Sent 399 bytes: 03 00 01 8f 02 f0 80 72 02 01 80 31 00 00 05 42 00 00 00 02 00 00 03 9b 34 00 00 03 9b 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 de d0 cd b0 c8 fc 90 f3 1a 8e 23 00 04 82 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 82 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 2c ee 00 1e 3e 84 64 ef 01 01 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 5b 45 c1 4d aa 65 20 d7 ae 81 3d 52 af e5 65 5d db 93 31 b9 a6 c7 28 ec 3f 05 7b db de dc c0 57 9f a8 56 0c 5e 3a f7 89 70 db 8d d4 89 97 bb 76 3f e3 d4 b9 0e d2 12 ad 8b 02 32 39 90 92 9c c9 af de d2 81 a4 d7 7a 25 7c 2a c6 79 92 35 f2 34 7c 99 5f b1 b4 0a 9a 19 b8 80 18 a2 60 cd e0 43 02 8d db 25 01 d4 b8 a3 35 39 c3 64 f8 dc 63 98 ca 40 62 45 a1 4c 9c a8 f9 b1 64 d7 ac 75 08 69 1e 36 ed a2 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 00 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=32 payload (28 bytes): 02 f0 80 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:=== SetupSession === received (25 bytes): 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:SetupSession response: function=0x0542
INFO:s7commplus.connection:Session setup completed successfully
DEBUG:s7commplus.connection:Session activation: SET_VARIABLE addr 323 = USINT(5)
DEBUG:s7commplus.connection:  IntegrityId: write=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x04F2 seq=3 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 18 ce 0a cd e0 30 c1 9e 52 bd 54 e9 5a 52 d7 5e f3 48 5e c2 61 b0 cc 43 7e d5 fe 95 77 9a fa 52 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 18 ce 0a cd e0 30 c1 9e 52 bd 54 e9 5a 52 d7 5e f3 48 5e c2 61 b0 cc 43 7e d5 fe 95 77 9a fa 52 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=64 payload (60 bytes): 02 f0 80 72 03 00 31 20 3b ce c8 a4 d7 db 77 65 94 d0 c0 39 66 de 83 ab 02 c5 4e 54 b5 e2 71 1b b9 b6 b8 c0 2a bf cb 7f 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (57 bytes): 72 03 00 31 20 3b ce c8 a4 d7 db 77 65 94 d0 c0 39 66 de 83 ab 02 c5 4e 54 b5 e2 71 1b b9 b6 b8 c0 2a bf cb 7f 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=49, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 3bcec8a4d7db776594d0c03966de83ab02c54e54b5e2711bb9b6b8c02abfcb7f
DEBUG:s7commplus.connection:  Response data (16 bytes): 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x04F2 seq=3 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (5 bytes): 06 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Session activation completed
DEBUG:s7commplus.connection:Post-auth legitimation: reading challenge from address 303
DEBUG:s7commplus.connection:  IntegrityId: read=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=4 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 04 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 09 98 f4 42 5f c2 5f 01 51 99 7d 3e db 09 48 77 72 a5 4f e2 45 ae 7f d5 dc f6 15 23 21 0c 1a 26 31 00 00 05 86 00 00 00 04 00 00 03 9b 34 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 09 98 f4 42 5f c2 5f 01 51 99 7d 3e db 09 48 77 72 a5 4f e2 45 ae 7f d5 dc f6 15 23 21 0c 1a 26 31 00 00 05 86 00 00 00 04 00 00 03 9b 34 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=88 payload (84 bytes): 02 f0 80 72 03 00 49 20 f0 6a 2c 9e 22 ef 6c 5f 82 0c 6f 2e f9 5f 84 f4 89 45 c3 49 9c e6 d6 bc 5e c4 a9 a3 ef 3f a3 50 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 f9 39 ea 1b 82 60 7b 4f 57 1d 5c 2b a7 a9 e1 53 71 f8 a7 82 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (81 bytes): 72 03 00 49 20 f0 6a 2c 9e 22 ef 6c 5f 82 0c 6f 2e f9 5f 84 f4 89 45 c3 49 9c e6 d6 bc 5e c4 a9 a3 ef 3f a3 50 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 f9 39 ea 1b 82 60 7b 4f 57 1d 5c 2b a7 a9 e1 53 71 f8 a7 82 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=73, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): f06a2c9e22ef6c5f820c6f2ef95f84f48945c3499ce6d6bc5ec4a9a3ef3fa350
DEBUG:s7commplus.connection:  Response data (40 bytes): 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 f9 39 ea 1b 82 60 7b 4f 57 1d 5c 2b a7 a9 e1 53 71 f8 a7 82 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x0586 seq=4 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (29 bytes): 00 10 02 14 f9 39 ea 1b 82 60 7b 4f 57 1d 5c 2b a7 a9 e1 53 71 f8 a7 82 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Legitimation blob generated (248 bytes)
DEBUG:s7commplus.connection:Post-auth legitimation: writing solved blob to address 1846
DEBUG:s7commplus.connection:  IntegrityId: write=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x057C seq=5 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (292 bytes): 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 84 22 de 11 33 df 5e ef 01 00 00 00 00 00 00 00 3c 00 00 00 24 7c d2 a7 43 d9 32 a5 09 c9 18 19 e5 56 17 4a 35 c8 d2 eb 5e e0 e8 56 44 62 85 49 c0 01 07 1b 50 e3 a3 bb ba 43 73 ab f7 02 ef 8b 84 a1 4d 52 4c d3 42 bb ee 6a c8 5e d2 78 ee 73 ef be ad de 00 00 00 00 40 00 00 00 be 93 98 70 d4 20 13 35 50 5f 90 21 6b f4 b6 99 4a 42 68 6f 2c d0 26 c1 b9 8e 9e 02 a4 f1 90 15 b9 bd 70 b5 8e 3c ec 88 08 51 a4 a4 1f 6e ee 16 48 5f 57 25 b5 05 91 41 6c 8c 65 50 72 1b 89 85 ef be ad de 01 00 00 00 18 00 00 00 af 95 42 0a 65 29 6c 01 6a ee 00 86 30 5d e9 ff 5e 2c da 85 fa ec 79 5e ef be ad de 02 00 00 00 00 00 00 00 05 00 00 00
DEBUG:s7commplus.connection:  Full frame (348 bytes): 72 03 01 54 20 fa ba f9 f7 2f b6 48 b2 3c 51 d5 31 97 7f 68 cd 75 10 c7 f1 f9 ef 5f f5 e8 14 90 46 32 6d 91 ba 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 84 22 de 11 33 df 5e ef 01 00 00 00 00 00 00 00 3c 00 00 00 24 7c d2 a7 43 d9 32 a5 09 c9 18 19 e5 56 17 4a 35 c8 d2 eb 5e e0 e8 56 44 62 85 49 c0 01 07 1b 50 e3 a3 bb ba 43 73 ab f7 02 ef 8b 84 a1 4d 52 4c d3 42 bb ee 6a c8 5e d2 78 ee 73 ef be ad de 00 00 00 00 40 00 00 00 be 93 98 70 d4 20 13 35 50 5f 90 21 6b f4 b6 99 4a 42 68 6f 2c d0 26 c1 b9 8e 9e 02 a4 f1 90 15 b9 bd 70 b5 8e 3c ec 88 08 51 a4 a4 1f 6e ee 16 48 5f 57 25 b5 05 91 41 6c 8c 65 50 72 1b 89 85 ef be ad de 01 00 00 00 18 00 00 00 af 95 42 0a 65 29 6c 01 6a ee 00 86 30 5d e9 ff 5e 2c da 85 fa ec 79 5e ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 355 bytes: 03 00 01 63 02 f0 80 72 03 01 54 20 fa ba f9 f7 2f b6 48 b2 3c 51 d5 31 97 7f 68 cd 75 10 c7 f1 f9 ef 5f f5 e8 14 90 46 32 6d 91 ba 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 84 22 de 11 33 df 5e ef 01 00 00 00 00 00 00 00 3c 00 00 00 24 7c d2 a7 43 d9 32 a5 09 c9 18 19 e5 56 17 4a 35 c8 d2 eb 5e e0 e8 56 44 62 85 49 c0 01 07 1b 50 e3 a3 bb ba 43 73 ab f7 02 ef 8b 84 a1 4d 52 4c d3 42 bb ee 6a c8 5e d2 78 ee 73 ef be ad de 00 00 00 00 40 00 00 00 be 93 98 70 d4 20 13 35 50 5f 90 21 6b f4 b6 99 4a 42 68 6f 2c d0 26 c1 b9 8e 9e 02 a4 f1 90 15 b9 bd 70 b5 8e 3c ec 88 08 51 a4 a4 1f 6e ee 16 48 5f 57 25 b5 05 91 41 6c 8c 65 50 72 1b 89 85 ef be ad de 01 00 00 00 18 00 00 00 af 95 42 0a 65 29 6c 01 6a ee 00 86 30 5d e9 ff 5e 2c da 85 fa ec 79 5e ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=27 payload (23 bytes): 02 f0 80 72 fe 00 10 00 00 00 00 00 00 02 f6 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (20 bytes): 72 fe 00 10 00 00 00 00 00 00 02 f6 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:  Frame header: version=V254, data_length=16, header_size=4
DEBUG:s7commplus.connection:  V254 frame: returning raw data (16 bytes)
DEBUG:s7commplus.connection:Legitimation write return_value=0x0
INFO:s7commplus.connection:Post-auth legitimation completed
INFO:s7commplus.connection:S7CommPlus connected to 192.168.0.1:102, version=V1, session=923, tls=False
DEBUG:s7commplus.connection:  IntegrityId: read=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x04BB seq=6 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 04 bb 00 00 00 06 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (16 bytes): 8a 11 ff ff 00 01 00 01 00 00 0a 00 00 00 00 00
DEBUG:s7commplus.connection:  Full frame (72 bytes): 72 03 00 40 20 6e c0 b6 7f 38 96 d5 7a ed 8f 38 b7 28 b1 cc fd 31 f4 3a 8e 3a ff d8 7e f0 c7 9a f8 3b 91 27 26 31 00 00 04 bb 00 00 00 06 00 00 03 9b 34 8a 11 ff ff 00 01 00 01 00 00 0a 01 00 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 79 bytes: 03 00 00 4f 02 f0 80 72 03 00 40 20 6e c0 b6 7f 38 96 d5 7a ed 8f 38 b7 28 b1 cc fd 31 f4 3a 8e 3a ff d8 7e f0 c7 9a f8 3b 91 27 26 31 00 00 04 bb 00 00 00 06 00 00 03 9b 34 8a 11 ff ff 00 01 00 01 00 00 0a 01 00 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=72 payload (68 bytes): 02 f0 80 72 03 00 39 20 20 d9 f3 d9 a4 a6 a3 f5 79 74 76 e9 e6 a6 c3 5e d3 3c c3 5a 69 df bc b4 13 5f 8e fb 00 fb 41 6c 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Reassembled response (57 bytes), payload 47 bytes
DEBUG:s7commplus.connection:  IntegrityId: read=2
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x04BB seq=7 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 04 bb 00 00 00 07 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 02
DEBUG:s7commplus.connection:  Request payload (15 bytes): 00 00 02 19 00 01 01 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:  Full frame (71 bytes): 72 03 00 3f 20 7e ac ff a3 c5 5a 37 6d 0d 7c d3 e2 a5 f4 92 09 2f 8c 41 6c 53 b1 e6 b0 02 2c 79 a7 5c 6b cd 60 31 00 00 04 bb 00 00 00 07 00 00 03 9b 34 00 00 02 19 00 01 01 00 00 00 02 00 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 78 bytes: 03 00 00 4e 02 f0 80 72 03 00 3f 20 7e ac ff a3 c5 5a 37 6d 0d 7c d3 e2 a5 f4 92 09 2f 8c 41 6c 53 b1 e6 b0 02 2c 79 a7 5c 6b cd 60 31 00 00 04 bb 00 00 00 07 00 00 03 9b 34 00 00 02 19 00 01 01 00 00 00 02 00 00 00 00 00 72 03 00 00
INFO:s7commplus.client:Connection dropped by PLC (Receive error: [WinError 10054] An existing connection was forcibly closed by the remote host); reconnecting and retrying
INFO:snap7.connection:Disconnected from 192.168.0.1:102
DEBUG:snap7.connection:TCP connected to 192.168.0.1:102
DEBUG:snap7.connection:Sent COTP Connection Request
DEBUG:snap7.connection:Negotiated PDU size: 1024
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc1, length=2
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc2, length=16
DEBUG:snap7.connection:Received COTP Connection Confirm
INFO:snap7.connection:Connected to 192.168.0.1:102, PDU size: 1024
DEBUG:s7commplus.connection:=== InitSSL === sending (26 bytes): 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 33 bytes: 03 00 00 21 02 f0 80 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=38 payload (34 bytes): 02 f0 80 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== InitSSL === received (31 bytes): 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:InitSSL response: version=V1, data_length=23
DEBUG:s7commplus.connection:InitSSL response body (27 bytes): 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === sending (192 bytes): 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 199 bytes: 03 00 00 c7 02 f0 80 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=215 payload (211 bytes): 02 f0 80 72 01 00 c8 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 dc 7e 90 54 b9 8e a4 ee 5a 70 1c ce 8f 4b 7a 36 15 7f b3 65 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === received (208 bytes): 72 01 00 c8 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 dc 7e 90 54 b9 8e a4 ee 5a 70 1c ce 8f 4b 7a 36 15 7f b3 65 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response: version=V1, data_length=200
DEBUG:s7commplus.connection:CreateObject response body (204 bytes): 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 dc 7e 90 54 b9 8e a4 ee 5a 70 1c ce 8f 4b 7a 36 15 7f b3 65 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response header: opcode=0x32 function=0x04CA seq=1 transport=0x36
DEBUG:s7commplus.connection:CreateObject response: return_value=0 object_ids=['0x39b', '0x3c2']
DEBUG:s7commplus.connection:Session created: id=0x0000039B (923), version=V1
INFO:s7commplus.connection:ServerSessionVersion captured (84 bytes)
INFO:s7commplus.connection:Public key fingerprint captured: 01:BD426B091F08731A
INFO:s7commplus.connection:Session challenge captured (20 bytes): dc7e9054b98ea4ee5a701cce8f4b7a36157fb365
INFO:s7commplus.connection:SessionKey auth blob generated (180 bytes)
INFO:s7commplus.connection:SecurityKey blob included in session setup, IntegrityId tracking enabled
DEBUG:s7commplus.connection:=== SetupSession === sending (392 bytes): 72 02 01 80 31 00 00 05 42 00 00 00 02 00 00 03 9b 34 00 00 03 9b 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 de d0 cd b0 c8 fc 90 f3 1a 8e 23 00 04 82 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 82 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 cd 7c 85 4c 6f 03 c8 59 01 01 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 23 27 ec 41 be 27 94 c7 53 43 35 d3 8b 77 43 fd f4 de e6 9b 11 2f f3 0a 95 e8 ae b0 2a 10 21 ce ea ca cc 10 43 5b 3f ae a1 53 c7 84 27 e8 48 d2 e6 97 00 05 8c df b9 b7 94 b5 95 c7 2f 40 d1 a3 b5 51 f6 7a ec 61 09 ab 62 2d a1 78 42 e2 18 74 11 80 24 2b b9 05 53 04 e0 48 11 68 63 51 96 c6 ca b7 4b fd f9 17 55 21 45 89 78 bb 2a dc 5c 19 a1 e6 4b fb 56 a7 3b a0 de 60 75 ba 7a 32 ea 01 75 be 5c b0 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 00 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Sent 399 bytes: 03 00 01 8f 02 f0 80 72 02 01 80 31 00 00 05 42 00 00 00 02 00 00 03 9b 34 00 00 03 9b 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 de d0 cd b0 c8 fc 90 f3 1a 8e 23 00 04 82 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 82 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 cd 7c 85 4c 6f 03 c8 59 01 01 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 23 27 ec 41 be 27 94 c7 53 43 35 d3 8b 77 43 fd f4 de e6 9b 11 2f f3 0a 95 e8 ae b0 2a 10 21 ce ea ca cc 10 43 5b 3f ae a1 53 c7 84 27 e8 48 d2 e6 97 00 05 8c df b9 b7 94 b5 95 c7 2f 40 d1 a3 b5 51 f6 7a ec 61 09 ab 62 2d a1 78 42 e2 18 74 11 80 24 2b b9 05 53 04 e0 48 11 68 63 51 96 c6 ca b7 4b fd f9 17 55 21 45 89 78 bb 2a dc 5c 19 a1 e6 4b fb 56 a7 3b a0 de 60 75 ba 7a 32 ea 01 75 be 5c b0 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 00 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=32 payload (28 bytes): 02 f0 80 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:=== SetupSession === received (25 bytes): 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:SetupSession response: function=0x0542
INFO:s7commplus.connection:Session setup completed successfully
DEBUG:s7commplus.connection:Session activation: SET_VARIABLE addr 323 = USINT(5)
DEBUG:s7commplus.connection:  IntegrityId: write=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x04F2 seq=3 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 0c f4 d4 9e af 37 b8 17 da 73 be de 21 fb f7 80 fb ec cf 52 77 98 91 cb 43 cd 1a 6c e0 e3 88 fe 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 0c f4 d4 9e af 37 b8 17 da 73 be de 21 fb f7 80 fb ec cf 52 77 98 91 cb 43 cd 1a 6c e0 e3 88 fe 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=64 payload (60 bytes): 02 f0 80 72 03 00 31 20 29 cc 84 c1 dd 0d f6 82 f5 ae 01 90 78 e5 28 d3 f4 21 66 41 b7 bd 75 5c 1d 99 75 1f e6 74 27 8d 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (57 bytes): 72 03 00 31 20 29 cc 84 c1 dd 0d f6 82 f5 ae 01 90 78 e5 28 d3 f4 21 66 41 b7 bd 75 5c 1d 99 75 1f e6 74 27 8d 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=49, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 29cc84c1dd0df682f5ae019078e528d3f4216641b7bd755c1d99751fe674278d
DEBUG:s7commplus.connection:  Response data (16 bytes): 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x04F2 seq=3 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (5 bytes): 06 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Session activation completed
DEBUG:s7commplus.connection:Post-auth legitimation: reading challenge from address 303
DEBUG:s7commplus.connection:  IntegrityId: read=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=4 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 04 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 b1 13 6a 2f e9 ff ec 1c f9 06 1f 61 7e fe 8b 5d f6 56 24 55 d0 c2 16 ef 48 05 86 3b 6a 78 cc d8 31 00 00 05 86 00 00 00 04 00 00 03 9b 34 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 b1 13 6a 2f e9 ff ec 1c f9 06 1f 61 7e fe 8b 5d f6 56 24 55 d0 c2 16 ef 48 05 86 3b 6a 78 cc d8 31 00 00 05 86 00 00 00 04 00 00 03 9b 34 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=88 payload (84 bytes): 02 f0 80 72 03 00 49 20 cc fb cd 58 47 6f 16 dc 86 58 36 4a be 6c 65 90 d9 63 a5 32 1e 4f 0a 29 63 0d ec 2c 9b 26 0d 37 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 ad a0 a5 99 07 d3 c8 09 b8 bd 45 cf bc ed 25 e1 d3 cd be cf 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (81 bytes): 72 03 00 49 20 cc fb cd 58 47 6f 16 dc 86 58 36 4a be 6c 65 90 d9 63 a5 32 1e 4f 0a 29 63 0d ec 2c 9b 26 0d 37 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 ad a0 a5 99 07 d3 c8 09 b8 bd 45 cf bc ed 25 e1 d3 cd be cf 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=73, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): ccfbcd58476f16dc8658364abe6c6590d963a5321e4f0a29630dec2c9b260d37
DEBUG:s7commplus.connection:  Response data (40 bytes): 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 ad a0 a5 99 07 d3 c8 09 b8 bd 45 cf bc ed 25 e1 d3 cd be cf 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x0586 seq=4 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (29 bytes): 00 10 02 14 ad a0 a5 99 07 d3 c8 09 b8 bd 45 cf bc ed 25 e1 d3 cd be cf 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Legitimation blob generated (248 bytes)
DEBUG:s7commplus.connection:Post-auth legitimation: writing solved blob to address 1846
DEBUG:s7commplus.connection:  IntegrityId: write=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x057C seq=5 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (292 bytes): 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 c5 35 38 ea 00 18 93 a8 01 00 00 00 00 00 00 00 3c 00 00 00 3e ad 48 65 0c 52 44 a6 34 e1 c2 e6 af cb 37 f7 6b 82 c5 f5 0b e2 a4 50 68 8f ee 3b 4b fd f3 47 98 ee e4 f1 55 15 ea 49 ce d0 27 8b f3 db 26 07 8b 0b 1d 9a e5 4e 49 a6 ca 81 5b 5b ef be ad de 00 00 00 00 40 00 00 00 6a 0f 74 67 fc 40 dd 83 7a b9 ee ba 0b 78 9f d1 c7 31 f2 9a be 74 33 1f 78 6d 28 e2 18 38 ee 8d 50 54 df d3 41 9d 87 62 55 c8 8c 9a 2a f9 5e ff c8 bc c5 c8 2a ce f5 da 19 08 1e d5 12 bb 79 22 ef be ad de 01 00 00 00 18 00 00 00 cd 53 03 83 5b d0 c0 7f 31 20 e5 9b 97 a4 4c 1e c1 5b 4e 63 d0 6d 61 2a ef be ad de 02 00 00 00 00 00 00 00 05 00 00 00
DEBUG:s7commplus.connection:  Full frame (348 bytes): 72 03 01 54 20 cb 3e b3 28 67 d6 e2 72 47 7c 87 4a c8 1a 40 de 83 44 b9 06 2f 2c 9a 7b 60 9a 13 11 84 6b e5 51 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 c5 35 38 ea 00 18 93 a8 01 00 00 00 00 00 00 00 3c 00 00 00 3e ad 48 65 0c 52 44 a6 34 e1 c2 e6 af cb 37 f7 6b 82 c5 f5 0b e2 a4 50 68 8f ee 3b 4b fd f3 47 98 ee e4 f1 55 15 ea 49 ce d0 27 8b f3 db 26 07 8b 0b 1d 9a e5 4e 49 a6 ca 81 5b 5b ef be ad de 00 00 00 00 40 00 00 00 6a 0f 74 67 fc 40 dd 83 7a b9 ee ba 0b 78 9f d1 c7 31 f2 9a be 74 33 1f 78 6d 28 e2 18 38 ee 8d 50 54 df d3 41 9d 87 62 55 c8 8c 9a 2a f9 5e ff c8 bc c5 c8 2a ce f5 da 19 08 1e d5 12 bb 79 22 ef be ad de 01 00 00 00 18 00 00 00 cd 53 03 83 5b d0 c0 7f 31 20 e5 9b 97 a4 4c 1e c1 5b 4e 63 d0 6d 61 2a ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 355 bytes: 03 00 01 63 02 f0 80 72 03 01 54 20 cb 3e b3 28 67 d6 e2 72 47 7c 87 4a c8 1a 40 de 83 44 b9 06 2f 2c 9a 7b 60 9a 13 11 84 6b e5 51 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 c5 35 38 ea 00 18 93 a8 01 00 00 00 00 00 00 00 3c 00 00 00 3e ad 48 65 0c 52 44 a6 34 e1 c2 e6 af cb 37 f7 6b 82 c5 f5 0b e2 a4 50 68 8f ee 3b 4b fd f3 47 98 ee e4 f1 55 15 ea 49 ce d0 27 8b f3 db 26 07 8b 0b 1d 9a e5 4e 49 a6 ca 81 5b 5b ef be ad de 00 00 00 00 40 00 00 00 6a 0f 74 67 fc 40 dd 83 7a b9 ee ba 0b 78 9f d1 c7 31 f2 9a be 74 33 1f 78 6d 28 e2 18 38 ee 8d 50 54 df d3 41 9d 87 62 55 c8 8c 9a 2a f9 5e ff c8 bc c5 c8 2a ce f5 da 19 08 1e d5 12 bb 79 22 ef be ad de 01 00 00 00 18 00 00 00 cd 53 03 83 5b d0 c0 7f 31 20 e5 9b 97 a4 4c 1e c1 5b 4e 63 d0 6d 61 2a ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=27 payload (23 bytes): 02 f0 80 72 fe 00 10 00 00 00 00 00 00 02 f6 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (20 bytes): 72 fe 00 10 00 00 00 00 00 00 02 f6 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:  Frame header: version=V254, data_length=16, header_size=4
DEBUG:s7commplus.connection:  V254 frame: returning raw data (16 bytes)
DEBUG:s7commplus.connection:Legitimation write return_value=0x0
INFO:s7commplus.connection:Post-auth legitimation completed
INFO:s7commplus.connection:S7CommPlus connected to 192.168.0.1:102, version=V1, session=923, tls=False
DEBUG:s7commplus.connection:  IntegrityId: read=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x04BB seq=6 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 04 bb 00 00 00 06 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (15 bytes): 00 00 02 19 00 01 01 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:  Full frame (71 bytes): 72 03 00 3f 20 c7 9f 7e 23 bf aa 3f 8f 73 ce 8a ff fe c4 76 69 98 45 c8 91 23 e7 a8 67 d1 eb 2a 01 a1 b5 bb 44 31 00 00 04 bb 00 00 00 06 00 00 03 9b 34 00 00 02 19 00 01 01 00 00 00 01 00 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 78 bytes: 03 00 00 4e 02 f0 80 72 03 00 3f 20 c7 9f 7e 23 bf aa 3f 8f 73 ce 8a ff fe c4 76 69 98 45 c8 91 23 e7 a8 67 d1 eb 2a 01 a1 b5 bb 44 31 00 00 04 bb 00 00 00 06 00 00 03 9b 34 00 00 02 19 00 01 01 00 00 00 01 00 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=72 payload (68 bytes): 02 f0 80 72 03 00 39 20 16 40 61 a3 b8 8e 17 df 96 15 f2 b7 3c 41 e1 58 ea 47 8d db 2b cc dc 1f fe fb 89 3e ac f1 55 99 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Reassembled response (57 bytes), payload 47 bytes
DEBUG:snap7.connection:Sent 33 bytes: 03 00 00 21 02 f0 80 72 01 00 12 31 00 00 04 d4 00 00 00 07 00 00 03 9b 36 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=209 payload (205 bytes): 02 f0 80 72 fe 00 c6 00 00 00 00 00 00 04 89 00 00 00 00 00 00 00 00 00 00 00 17 00 00 9d 6c 00 00 9d 6d 00 00 00 08 00 00 00 02 00 00 9d 6e 00 00 00 04 00 00 03 9b 00 00 9d 6f 00 00 00 04 00 00 04 bb 00 00 9d 70 00 00 00 03 00 06 00 00 9d 71 00 00 00 09 a2 01 3b 00 02 36 ff 88 00 00 9d 72 00 00 00 04 00 00 00 00 00 00 9d 73 00 00 00 04 00 00 04 bb 00 00 9d 74 00 00 00 04 00 00 00 e9 00 00 9d 75 00 00 00 04 00 00 00 00 00 00 9d 76 00 00 00 03 00 06 00 00 9d 77 00 00 00 03 00 00 00 00 9d 78 00 00 00 03 10 00 00 00 9d 79 00 00 00 03 10 11 00 00 9d 7a 00 00 00 03 08 01 00 00 9d 7b 00 00 00 03 10 29 00 00 00 00
INFO:snap7.connection:Disconnected from 192.168.0.1:102
[]

browse.zip

db_read():

DEBUG:snap7.connection:TCP connected to 192.168.0.1:102
DEBUG:snap7.connection:Sent COTP Connection Request
DEBUG:snap7.connection:Negotiated PDU size: 1024
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc1, length=2
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc2, length=16
DEBUG:snap7.connection:Received COTP Connection Confirm
INFO:snap7.connection:Connected to 192.168.0.1:102, PDU size: 1024
DEBUG:s7commplus.connection:=== InitSSL === sending (26 bytes): 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 33 bytes: 03 00 00 21 02 f0 80 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=38 payload (34 bytes): 02 f0 80 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== InitSSL === received (31 bytes): 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:InitSSL response: version=V1, data_length=23
DEBUG:s7commplus.connection:InitSSL response body (27 bytes): 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === sending (192 bytes): 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 199 bytes: 03 00 00 c7 02 f0 80 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=215 payload (211 bytes): 02 f0 80 72 01 00 c8 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 c0 95 57 cb 4b 3e f8 61 c7 68 97 77 0d 91 2b 6a 5a bb 87 ec a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === received (208 bytes): 72 01 00 c8 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 c0 95 57 cb 4b 3e f8 61 c7 68 97 77 0d 91 2b 6a 5a bb 87 ec a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response: version=V1, data_length=200
DEBUG:s7commplus.connection:CreateObject response body (204 bytes): 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 c0 95 57 cb 4b 3e f8 61 c7 68 97 77 0d 91 2b 6a 5a bb 87 ec a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response header: opcode=0x32 function=0x04CA seq=1 transport=0x36
DEBUG:s7commplus.connection:CreateObject response: return_value=0 object_ids=['0x39b', '0x3c2']
DEBUG:s7commplus.connection:Session created: id=0x0000039B (923), version=V1
INFO:s7commplus.connection:ServerSessionVersion captured (84 bytes)
INFO:s7commplus.connection:Public key fingerprint captured: 01:BD426B091F08731A
INFO:s7commplus.connection:Session challenge captured (20 bytes): c09557cb4b3ef861c76897770d912b6a5abb87ec
INFO:s7commplus.connection:SessionKey auth blob generated (180 bytes)
INFO:s7commplus.connection:SecurityKey blob included in session setup, IntegrityId tracking enabled
DEBUG:s7commplus.connection:=== SetupSession === sending (392 bytes): 72 02 01 80 31 00 00 05 42 00 00 00 02 00 00 03 9b 34 00 00 03 9b 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 de d0 cd b0 c8 fc 90 f3 1a 8e 23 00 04 82 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 82 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 c6 95 2b 63 dd c0 2a e0 01 01 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 94 ac c2 68 e5 af e5 b6 47 ee 70 1d 8e 0e a9 69 34 61 e6 fa 5f 14 a3 06 2f b0 47 40 cc 47 4d d7 7d 92 f3 43 d8 55 7e 7e 12 c5 18 53 89 96 24 f3 ac 4e c5 27 8a 89 c3 66 69 d4 d4 63 ef 50 bc 54 0c b1 ec 7e be 78 25 bb bf 7d 32 37 b4 a6 b5 35 e2 04 bc e4 06 35 ae de a0 78 bd 2b 3b 23 27 0a 42 0b da 70 e7 2f 13 eb 24 90 d0 9c 43 ce 50 0f 8d 54 03 ce 25 f9 fd 5b cd 9a 78 3b b1 67 ea fb 27 5b 2b 3b 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 00 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Sent 399 bytes: 03 00 01 8f 02 f0 80 72 02 01 80 31 00 00 05 42 00 00 00 02 00 00 03 9b 34 00 00 03 9b 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 de d0 cd b0 c8 fc 90 f3 1a 8e 23 00 04 82 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 82 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 c6 95 2b 63 dd c0 2a e0 01 01 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 94 ac c2 68 e5 af e5 b6 47 ee 70 1d 8e 0e a9 69 34 61 e6 fa 5f 14 a3 06 2f b0 47 40 cc 47 4d d7 7d 92 f3 43 d8 55 7e 7e 12 c5 18 53 89 96 24 f3 ac 4e c5 27 8a 89 c3 66 69 d4 d4 63 ef 50 bc 54 0c b1 ec 7e be 78 25 bb bf 7d 32 37 b4 a6 b5 35 e2 04 bc e4 06 35 ae de a0 78 bd 2b 3b 23 27 0a 42 0b da 70 e7 2f 13 eb 24 90 d0 9c 43 ce 50 0f 8d 54 03 ce 25 f9 fd 5b cd 9a 78 3b b1 67 ea fb 27 5b 2b 3b 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 00 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=32 payload (28 bytes): 02 f0 80 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:=== SetupSession === received (25 bytes): 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:SetupSession response: function=0x0542
INFO:s7commplus.connection:Session setup completed successfully
DEBUG:s7commplus.connection:Session activation: SET_VARIABLE addr 323 = USINT(5)
DEBUG:s7commplus.connection:  IntegrityId: write=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x04F2 seq=3 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 7b 05 74 7e 1f 81 40 52 8f 07 c6 af 94 aa 55 a5 5c cf 05 58 5d 6c 00 8c 45 60 20 91 35 d6 a7 92 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 7b 05 74 7e 1f 81 40 52 8f 07 c6 af 94 aa 55 a5 5c cf 05 58 5d 6c 00 8c 45 60 20 91 35 d6 a7 92 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=64 payload (60 bytes): 02 f0 80 72 03 00 31 20 ec a6 c5 a1 c3 07 47 44 57 09 69 19 64 e1 7f 38 e9 f8 c4 e7 eb 4c ed ca 21 f0 38 c9 b3 c2 4e 6d 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (57 bytes): 72 03 00 31 20 ec a6 c5 a1 c3 07 47 44 57 09 69 19 64 e1 7f 38 e9 f8 c4 e7 eb 4c ed ca 21 f0 38 c9 b3 c2 4e 6d 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=49, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): eca6c5a1c30747445709691964e17f38e9f8c4e7eb4cedca21f038c9b3c24e6d
DEBUG:s7commplus.connection:  Response data (16 bytes): 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x04F2 seq=3 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (5 bytes): 06 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Session activation completed
DEBUG:s7commplus.connection:Post-auth legitimation: reading challenge from address 303
DEBUG:s7commplus.connection:  IntegrityId: read=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=4 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 04 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 96 86 e4 f6 4d 1e 40 8c 35 e2 27 46 e0 59 b8 6b 75 fa e1 2d 67 8f 1a 9b 21 ff cc f1 65 76 a5 34 31 00 00 05 86 00 00 00 04 00 00 03 9b 34 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 96 86 e4 f6 4d 1e 40 8c 35 e2 27 46 e0 59 b8 6b 75 fa e1 2d 67 8f 1a 9b 21 ff cc f1 65 76 a5 34 31 00 00 05 86 00 00 00 04 00 00 03 9b 34 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=88 payload (84 bytes): 02 f0 80 72 03 00 49 20 28 f8 47 25 df 96 dc f9 e9 0d 68 d9 c8 5b bb db 88 14 ef 69 6d db 2c f6 74 01 89 1b 4e af f3 45 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 ab 73 a7 7f 2a 9b 80 8b 98 5f 75 5d 64 3d 9d 7f b0 04 44 ba 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (81 bytes): 72 03 00 49 20 28 f8 47 25 df 96 dc f9 e9 0d 68 d9 c8 5b bb db 88 14 ef 69 6d db 2c f6 74 01 89 1b 4e af f3 45 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 ab 73 a7 7f 2a 9b 80 8b 98 5f 75 5d 64 3d 9d 7f b0 04 44 ba 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=73, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 28f84725df96dcf9e90d68d9c85bbbdb8814ef696ddb2cf67401891b4eaff345
DEBUG:s7commplus.connection:  Response data (40 bytes): 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 ab 73 a7 7f 2a 9b 80 8b 98 5f 75 5d 64 3d 9d 7f b0 04 44 ba 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x0586 seq=4 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (29 bytes): 00 10 02 14 ab 73 a7 7f 2a 9b 80 8b 98 5f 75 5d 64 3d 9d 7f b0 04 44 ba 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Legitimation blob generated (248 bytes)
DEBUG:s7commplus.connection:Post-auth legitimation: writing solved blob to address 1846
DEBUG:s7commplus.connection:  IntegrityId: write=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x057C seq=5 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (292 bytes): 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 40 ca 45 1c 69 41 f3 6d 01 00 00 00 00 00 00 00 3c 00 00 00 8e 76 21 cd 9e 7f f1 6f 74 c4 87 6c 1b c8 2d e1 ff b9 1b 95 88 47 2c cc 66 5c 39 aa 14 c5 d8 13 2d fc 5c 90 9a ef 2e de 3a 37 6c f8 da b0 f4 8f 09 79 d9 e9 48 f0 8a 15 da 33 a3 e8 ef be ad de 00 00 00 00 40 00 00 00 ab c8 0a 67 2f c0 e8 ee 84 8d 15 77 de 26 b9 d1 ac 58 62 3e fd aa a8 2c 73 ea 33 39 c1 08 17 6f 65 cd 0f 7c 47 8d 61 42 03 d3 d0 59 31 8a 26 c1 6e 31 b2 d5 79 3f c9 6f 1e f4 13 33 75 5e c1 19 ef be ad de 01 00 00 00 18 00 00 00 48 e2 28 61 86 be 10 d7 b4 4a e1 9e 23 aa 7f 48 c3 3c 5f e3 2f ec 7c 5f ef be ad de 02 00 00 00 00 00 00 00 05 00 00 00
DEBUG:s7commplus.connection:  Full frame (348 bytes): 72 03 01 54 20 72 54 dc 50 4b 11 f8 96 eb 91 8b 60 15 18 24 92 92 f7 4d ee ef b3 85 0f 17 8e fd 84 b0 f8 ca 9d 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 40 ca 45 1c 69 41 f3 6d 01 00 00 00 00 00 00 00 3c 00 00 00 8e 76 21 cd 9e 7f f1 6f 74 c4 87 6c 1b c8 2d e1 ff b9 1b 95 88 47 2c cc 66 5c 39 aa 14 c5 d8 13 2d fc 5c 90 9a ef 2e de 3a 37 6c f8 da b0 f4 8f 09 79 d9 e9 48 f0 8a 15 da 33 a3 e8 ef be ad de 00 00 00 00 40 00 00 00 ab c8 0a 67 2f c0 e8 ee 84 8d 15 77 de 26 b9 d1 ac 58 62 3e fd aa a8 2c 73 ea 33 39 c1 08 17 6f 65 cd 0f 7c 47 8d 61 42 03 d3 d0 59 31 8a 26 c1 6e 31 b2 d5 79 3f c9 6f 1e f4 13 33 75 5e c1 19 ef be ad de 01 00 00 00 18 00 00 00 48 e2 28 61 86 be 10 d7 b4 4a e1 9e 23 aa 7f 48 c3 3c 5f e3 2f ec 7c 5f ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 355 bytes: 03 00 01 63 02 f0 80 72 03 01 54 20 72 54 dc 50 4b 11 f8 96 eb 91 8b 60 15 18 24 92 92 f7 4d ee ef b3 85 0f 17 8e fd 84 b0 f8 ca 9d 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 40 ca 45 1c 69 41 f3 6d 01 00 00 00 00 00 00 00 3c 00 00 00 8e 76 21 cd 9e 7f f1 6f 74 c4 87 6c 1b c8 2d e1 ff b9 1b 95 88 47 2c cc 66 5c 39 aa 14 c5 d8 13 2d fc 5c 90 9a ef 2e de 3a 37 6c f8 da b0 f4 8f 09 79 d9 e9 48 f0 8a 15 da 33 a3 e8 ef be ad de 00 00 00 00 40 00 00 00 ab c8 0a 67 2f c0 e8 ee 84 8d 15 77 de 26 b9 d1 ac 58 62 3e fd aa a8 2c 73 ea 33 39 c1 08 17 6f 65 cd 0f 7c 47 8d 61 42 03 d3 d0 59 31 8a 26 c1 6e 31 b2 d5 79 3f c9 6f 1e f4 13 33 75 5e c1 19 ef be ad de 01 00 00 00 18 00 00 00 48 e2 28 61 86 be 10 d7 b4 4a e1 9e 23 aa 7f 48 c3 3c 5f e3 2f ec 7c 5f ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=27 payload (23 bytes): 02 f0 80 72 fe 00 10 00 00 00 00 00 00 02 f6 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (20 bytes): 72 fe 00 10 00 00 00 00 00 00 02 f6 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:  Frame header: version=V254, data_length=16, header_size=4
DEBUG:s7commplus.connection:  V254 frame: returning raw data (16 bytes)
DEBUG:s7commplus.connection:Legitimation write return_value=0x0
INFO:s7commplus.connection:Post-auth legitimation completed
INFO:s7commplus.connection:S7CommPlus connected to 192.168.0.1:102, version=V1, session=923, tls=False
DEBUG:s7commplus.connection:  IntegrityId: read=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x054C seq=6 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 4c 00 00 00 06 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (47 bytes): 00 00 00 00 01 06 00 88 d0 b8 80 07 03 93 76 01 02 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 01 00 00 00 00
DEBUG:s7commplus.connection:  Full frame (103 bytes): 72 03 00 5f 20 7e f2 c2 2d 41 1a 33 99 22 8f 6b 7b 78 61 75 38 bf c2 5d a2 47 b0 90 cf 43 94 e2 18 63 48 00 4b 31 00 00 05 4c 00 00 00 06 00 00 03 9b 34 00 00 00 00 01 06 00 88 d0 b8 80 07 03 93 76 01 02 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 01 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 110 bytes: 03 00 00 6e 02 f0 80 72 03 00 5f 20 7e f2 c2 2d 41 1a 33 99 22 8f 6b 7b 78 61 75 38 bf c2 5d a2 47 b0 90 cf 43 94 e2 18 63 48 00 4b 31 00 00 05 4c 00 00 00 06 00 00 03 9b 34 00 00 00 00 01 06 00 88 d0 b8 80 07 03 93 76 01 02 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 01 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=72 payload (68 bytes): 02 f0 80 72 03 00 39 20 9e 47 cc 3d f2 84 c4 77 07 ad 74 47 72 be 4e cb 6c ac 81 55 95 6c 44 ef c7 67 57 f9 65 f0 b9 8e 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (65 bytes): 72 03 00 39 20 9e 47 cc 3d f2 84 c4 77 07 ad 74 47 72 be 4e cb 6c ac 81 55 95 6c 44 ef c7 67 57 f9 65 f0 b9 8e 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=57, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 9e47cc3df284c47707ad744772be4ecb6cac8155956c44efc76757f965f0b98e
DEBUG:s7commplus.connection:  Response data (24 bytes): 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x057C seq=5 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 17595385856 (5 bytes)
DEBUG:s7commplus.connection:  Response payload (9 bytes): 86 e7 ff fe 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
ERROR:s7commplus.client:_parse_read_response: PLC returned error 0x6CFFFF05
Traceback (most recent call last):
  File "\python-snap7-fix-v1-sessionkey-challenge-layout\main.py", line 9, in <module>
    variables = client.db_read(7, 0, 2)
  File "\python-snap7-fix-v1-sessionkey-challenge-layout\s7commplus\client.py", line 181, in db_read
    raise RuntimeError("Read returned no data")
RuntimeError: Read returned no data

db_read.zip

bvanelli · 2026-08-19T20:51:06Z

@gijzelaerr we unfortunatelly don't have any PLC that supports the V1 protocol. I get:

INFO s7commplus.connection: S7CommPlus connected to 192.168.101.53:102, version=V2, session=1879052252, tls=True

which means the protocol version is V2 (I assume). However, I tested the branch with the three S7-1500 plcs and they all worked for a browse + variable read.

…hallenge-layout

gijzelaerr · 2026-08-20T06:50:09Z

@xBiggs @bvanelli I pushed follow-up fixes for the captured V1 response handling: non-fatal V254 SystemEvents are now consumed while waiting for the matching sequence, and fragmented V3 responses have their per-fragment HMAC removed before reassembly.

@xBiggs, could you please retest this branch on the original S7-1200 FW V4.2 reproduction (connect(), browse(), and if possible db_read()/db_write())? Given your S7-1500 < FW 2.9 report, a run there would also be valuable. For that PLC, please include a decrypted/log trace from the SessionKey SET_MULTI_VARIABLES through the additional SET_VARIABLE and subsequent GET_VAR_SUBSTREAMED/SecurityDisconnect. That will let us determine a safe model/firmware condition instead of guessing.

Install:

pip install --upgrade "python-snap7 @ git+https://github.com/gijzelaerr/python-snap7.git@fix-v1-sessionkey-challenge-layout"

Local validation is green: 1,827 passed, 78 skipped, with the full pre-commit suite passing.

xBiggs · 2026-08-20T14:28:21Z

@gijzelaerr

1200 browse():

DEBUG:snap7.connection:TCP connected to 192.168.0.1:102
DEBUG:snap7.connection:Sent COTP Connection Request
DEBUG:snap7.connection:Negotiated PDU size: 1024
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc1, length=2
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc2, length=16
DEBUG:snap7.connection:Received COTP Connection Confirm
INFO:snap7.connection:Connected to 192.168.0.1:102, PDU size: 1024
DEBUG:s7commplus.connection:=== InitSSL === sending (26 bytes): 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 33 bytes: 03 00 00 21 02 f0 80 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=38 payload (34 bytes): 02 f0 80 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== InitSSL === received (31 bytes): 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:InitSSL response: version=V1, data_length=23
DEBUG:s7commplus.connection:InitSSL response body (27 bytes): 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === sending (192 bytes): 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 199 bytes: 03 00 00 c7 02 f0 80 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=215 payload (211 bytes): 02 f0 80 72 01 00 c8 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 dc c0 c4 11 09 6a bc 4a 31 48 dd 32 fc cc 3f 9a a4 cc 5a 4e a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === received (208 bytes): 72 01 00 c8 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 dc c0 c4 11 09 6a bc 4a 31 48 dd 32 fc cc 3f 9a a4 cc 5a 4e a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response: version=V1, data_length=200
DEBUG:s7commplus.connection:CreateObject response body (204 bytes): 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 dc c0 c4 11 09 6a bc 4a 31 48 dd 32 fc cc 3f 9a a4 cc 5a 4e a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response header: opcode=0x32 function=0x04CA seq=1 transport=0x36
DEBUG:s7commplus.connection:CreateObject response: return_value=0 object_ids=['0x39b', '0x3c2']
DEBUG:s7commplus.connection:Session created: id=0x0000039B (923), version=V1
INFO:s7commplus.connection:ServerSessionVersion captured (84 bytes)
INFO:s7commplus.connection:Public key fingerprint captured: 01:BD426B091F08731A
INFO:s7commplus.connection:Session challenge captured (20 bytes): dcc0c411096abc4a3148dd32fccc3f9aa4cc5a4e
INFO:s7commplus.connection:SessionKey auth blob generated (180 bytes)
INFO:s7commplus.connection:SecurityKey blob included in session setup, IntegrityId tracking enabled
DEBUG:s7commplus.connection:=== SetupSession === sending (392 bytes): 72 02 01 80 31 00 00 05 42 00 00 00 02 00 00 03 9b 34 00 00 03 9b 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 de d0 cd b0 c8 fc 90 f3 1a 8e 23 00 04 82 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 82 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 66 e5 cc 58 03 fa 01 41 01 01 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 0c e8 44 d6 cf 1f 0c 06 2f 64 de 4a 1a 69 e1 fe b5 e9 8b f4 7e f9 84 48 22 cc e0 c1 a7 50 ec 97 82 eb e1 20 4b 20 ce 22 a1 97 55 c4 f8 a5 01 68 8f 26 06 a4 a1 22 0f 6e 34 b4 b1 da 74 c8 f8 0d 4c 86 f4 48 8e 80 92 3a 23 40 7f 21 8b aa d6 55 cb 81 c9 8f 74 ed 7d 75 12 78 e6 62 a3 2a 1c 4c e3 4e 4a 5b 8a c0 98 fc 5c 6b cf 66 51 ca eb 8c 49 0d f1 29 54 6b 31 12 e2 d3 2d fa 07 30 10 78 f6 a6 24 0d 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 00 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Sent 399 bytes: 03 00 01 8f 02 f0 80 72 02 01 80 31 00 00 05 42 00 00 00 02 00 00 03 9b 34 00 00 03 9b 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 de d0 cd b0 c8 fc 90 f3 1a 8e 23 00 04 82 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 82 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 66 e5 cc 58 03 fa 01 41 01 01 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 0c e8 44 d6 cf 1f 0c 06 2f 64 de 4a 1a 69 e1 fe b5 e9 8b f4 7e f9 84 48 22 cc e0 c1 a7 50 ec 97 82 eb e1 20 4b 20 ce 22 a1 97 55 c4 f8 a5 01 68 8f 26 06 a4 a1 22 0f 6e 34 b4 b1 da 74 c8 f8 0d 4c 86 f4 48 8e 80 92 3a 23 40 7f 21 8b aa d6 55 cb 81 c9 8f 74 ed 7d 75 12 78 e6 62 a3 2a 1c 4c e3 4e 4a 5b 8a c0 98 fc 5c 6b cf 66 51 ca eb 8c 49 0d f1 29 54 6b 31 12 e2 d3 2d fa 07 30 10 78 f6 a6 24 0d 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 00 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=32 payload (28 bytes): 02 f0 80 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:=== SetupSession === received (25 bytes): 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:SetupSession response: function=0x0542
INFO:s7commplus.connection:Session setup completed successfully
DEBUG:s7commplus.connection:Session activation: SET_VARIABLE addr 323 = USINT(5)
DEBUG:s7commplus.connection:  IntegrityId: write=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x04F2 seq=3 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 bf 31 ac d7 ee b0 81 62 72 80 3e 66 0b 3e ba f5 80 10 8d d1 13 d7 93 62 b0 d4 b5 76 5e 5f 70 b2 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 bf 31 ac d7 ee b0 81 62 72 80 3e 66 0b 3e ba f5 80 10 8d d1 13 d7 93 62 b0 d4 b5 76 5e 5f 70 b2 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=64 payload (60 bytes): 02 f0 80 72 03 00 31 20 01 af 7d de 4d 63 ae 4f c9 32 f0 72 72 45 a0 a6 29 31 ad 4f be 13 17 ca 97 c9 04 50 b9 cc c8 86 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (57 bytes): 72 03 00 31 20 01 af 7d de 4d 63 ae 4f c9 32 f0 72 72 45 a0 a6 29 31 ad 4f be 13 17 ca 97 c9 04 50 b9 cc c8 86 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=49, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 01af7dde4d63ae4fc932f0727245a0a62931ad4fbe1317ca97c90450b9ccc886
DEBUG:s7commplus.connection:  Response data (16 bytes): 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x04F2 seq=3 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (5 bytes): 06 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Session activation completed
DEBUG:s7commplus.connection:Post-auth legitimation: reading challenge from address 303
DEBUG:s7commplus.connection:  IntegrityId: read=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=4 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 04 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 f3 c2 a3 a2 f6 04 6a 84 6a 49 42 af 4b 82 68 2a 0e fb ee fd f0 a6 eb 96 f4 94 e6 a1 aa 63 77 18 31 00 00 05 86 00 00 00 04 00 00 03 9b 34 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 f3 c2 a3 a2 f6 04 6a 84 6a 49 42 af 4b 82 68 2a 0e fb ee fd f0 a6 eb 96 f4 94 e6 a1 aa 63 77 18 31 00 00 05 86 00 00 00 04 00 00 03 9b 34 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=88 payload (84 bytes): 02 f0 80 72 03 00 49 20 57 46 d5 ba 44 40 ee dc b9 4b 27 b3 c9 33 a4 8a 8f a0 0d d2 68 a2 64 33 00 9b 14 20 6d 1a ad ae 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 4b 45 d9 d0 52 11 68 90 b2 ad da 87 45 62 c7 b9 8b a2 56 cf 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (81 bytes): 72 03 00 49 20 57 46 d5 ba 44 40 ee dc b9 4b 27 b3 c9 33 a4 8a 8f a0 0d d2 68 a2 64 33 00 9b 14 20 6d 1a ad ae 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 4b 45 d9 d0 52 11 68 90 b2 ad da 87 45 62 c7 b9 8b a2 56 cf 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=73, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 5746d5ba4440eedcb94b27b3c933a48a8fa00dd268a26433009b14206d1aadae
DEBUG:s7commplus.connection:  Response data (40 bytes): 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 4b 45 d9 d0 52 11 68 90 b2 ad da 87 45 62 c7 b9 8b a2 56 cf 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x0586 seq=4 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (29 bytes): 00 10 02 14 4b 45 d9 d0 52 11 68 90 b2 ad da 87 45 62 c7 b9 8b a2 56 cf 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Legitimation blob generated (248 bytes)
DEBUG:s7commplus.connection:Post-auth legitimation: writing solved blob to address 1846
DEBUG:s7commplus.connection:  IntegrityId: write=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x057C seq=5 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (292 bytes): 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 ce 29 58 6c 14 10 b6 bd 01 00 00 00 00 00 00 00 3c 00 00 00 2f 18 07 e2 5c a4 03 52 d3 cb d5 ac 0d e6 d8 bf 49 96 46 74 3d 50 ef 82 e7 8e 57 af 8e 9e 79 ac 88 b3 47 2f 4d 12 a6 e1 b7 2e d7 fd 79 57 3c d4 32 ca 10 5c 06 9c 66 56 14 b1 ed 80 ef be ad de 00 00 00 00 40 00 00 00 ae a3 b0 ac ef 9f a6 5f 63 1b da 44 e5 ac ea 4c 3b b6 1d a2 81 21 0e f5 fc 54 ea 6d 50 a1 26 6a 6e c3 4e 98 1d 74 45 f9 8d 72 07 23 31 07 f4 39 f2 5f 3c a2 7f 7e bf 53 9b 72 1e 08 8c 31 9d 81 ef be ad de 01 00 00 00 18 00 00 00 3a 17 15 08 14 51 06 4e 18 55 c0 82 e0 63 38 b5 3f cd 62 e9 a5 7f 86 55 ef be ad de 02 00 00 00 00 00 00 00 05 00 00 00
DEBUG:s7commplus.connection:  Full frame (348 bytes): 72 03 01 54 20 26 8a 34 cd 2f 69 84 5d b4 e8 a8 54 33 ea 65 6e 6a 35 05 6c 80 28 a8 4b db af 2d 00 06 ce c8 f4 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 ce 29 58 6c 14 10 b6 bd 01 00 00 00 00 00 00 00 3c 00 00 00 2f 18 07 e2 5c a4 03 52 d3 cb d5 ac 0d e6 d8 bf 49 96 46 74 3d 50 ef 82 e7 8e 57 af 8e 9e 79 ac 88 b3 47 2f 4d 12 a6 e1 b7 2e d7 fd 79 57 3c d4 32 ca 10 5c 06 9c 66 56 14 b1 ed 80 ef be ad de 00 00 00 00 40 00 00 00 ae a3 b0 ac ef 9f a6 5f 63 1b da 44 e5 ac ea 4c 3b b6 1d a2 81 21 0e f5 fc 54 ea 6d 50 a1 26 6a 6e c3 4e 98 1d 74 45 f9 8d 72 07 23 31 07 f4 39 f2 5f 3c a2 7f 7e bf 53 9b 72 1e 08 8c 31 9d 81 ef be ad de 01 00 00 00 18 00 00 00 3a 17 15 08 14 51 06 4e 18 55 c0 82 e0 63 38 b5 3f cd 62 e9 a5 7f 86 55 ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 355 bytes: 03 00 01 63 02 f0 80 72 03 01 54 20 26 8a 34 cd 2f 69 84 5d b4 e8 a8 54 33 ea 65 6e 6a 35 05 6c 80 28 a8 4b db af 2d 00 06 ce c8 f4 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 ce 29 58 6c 14 10 b6 bd 01 00 00 00 00 00 00 00 3c 00 00 00 2f 18 07 e2 5c a4 03 52 d3 cb d5 ac 0d e6 d8 bf 49 96 46 74 3d 50 ef 82 e7 8e 57 af 8e 9e 79 ac 88 b3 47 2f 4d 12 a6 e1 b7 2e d7 fd 79 57 3c d4 32 ca 10 5c 06 9c 66 56 14 b1 ed 80 ef be ad de 00 00 00 00 40 00 00 00 ae a3 b0 ac ef 9f a6 5f 63 1b da 44 e5 ac ea 4c 3b b6 1d a2 81 21 0e f5 fc 54 ea 6d 50 a1 26 6a 6e c3 4e 98 1d 74 45 f9 8d 72 07 23 31 07 f4 39 f2 5f 3c a2 7f 7e bf 53 9b 72 1e 08 8c 31 9d 81 ef be ad de 01 00 00 00 18 00 00 00 3a 17 15 08 14 51 06 4e 18 55 c0 82 e0 63 38 b5 3f cd 62 e9 a5 7f 86 55 ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=27 payload (23 bytes): 02 f0 80 72 fe 00 10 00 00 00 00 00 00 02 f6 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:Ignoring non-fatal S7CommPlus SystemEvent (16 bytes)
DEBUG:snap7.connection:Received TPKT: version=3 length=72 payload (68 bytes): 02 f0 80 72 03 00 39 20 ee 7f 87 5f 7d 0a 08 57 72 39 1e e0 c3 6b 21 1e 27 d9 ab a9 61 66 61 8c 4f da 60 19 33 12 f0 7c 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (65 bytes): 72 03 00 39 20 ee 7f 87 5f 7d 0a 08 57 72 39 1e e0 c3 6b 21 1e 27 d9 ab a9 61 66 61 8c 4f da 60 19 33 12 f0 7c 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=57, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): ee7f875f7d0a085772391ee0c36b211e27d9aba96166618c4fda60193312f07c
DEBUG:s7commplus.connection:  Response data (24 bytes): 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x057C seq=5 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 17595385856 (5 bytes)
DEBUG:s7commplus.connection:  Response payload (9 bytes): 86 e7 ff fe 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
DEBUG:s7commplus.connection:Legitimation write return_value=0x6CFFFF05
INFO:s7commplus.connection:Post-auth legitimation completed
DEBUG:s7commplus.connection:  IntegrityId: read=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=6 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 06 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 00 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 61 dd 33 4f 85 61 c7 56 ee 30 4a ac a9 18 32 04 a4 91 ec 03 b4 3d 56 fe 34 a0 6a b3 1a bd b9 cf 31 00 00 05 86 00 00 00 06 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 61 dd 33 4f 85 61 c7 56 ee 30 4a ac a9 18 32 04 a4 91 ec 03 b4 3d 56 fe 34 a0 6a b3 1a bd b9 cf 31 00 00 05 86 00 00 00 06 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=209 payload (205 bytes): 02 f0 80 72 fe 00 c6 00 00 00 00 00 00 04 a0 00 00 00 00 00 00 00 00 00 00 00 17 00 00 9d 6c 00 00 9d 6d 00 00 00 08 00 00 00 02 00 00 9d 6e 00 00 00 04 00 00 03 9b 00 00 9d 6f 00 00 00 04 00 00 05 86 00 00 9d 70 00 00 00 03 00 06 00 00 9d 71 00 00 00 09 a2 01 3b 00 02 36 ff 88 00 00 9d 72 00 00 00 04 00 00 00 00 00 00 9d 73 00 00 00 04 00 00 05 86 00 00 9d 74 00 00 00 04 00 00 00 e9 00 00 9d 75 00 00 00 04 00 00 00 00 00 00 9d 76 00 00 00 03 00 06 00 00 9d 77 00 00 00 03 00 00 00 00 9d 78 00 00 00 03 10 00 00 00 9d 79 00 00 00 03 10 11 00 00 9d 7a 00 00 00 03 08 01 00 00 9d 7b 00 00 00 03 10 29 00 00 00 00
INFO:snap7.connection:Disconnected from 192.168.0.1:102
Traceback (most recent call last):
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\main.py", line 8, in <module>
    client.connect('192.168.0.1')
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\client.py", line 114, in connect
    self._open_connection()
    ~~~~~~~~~~~~~~~~~~~~~^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\client.py", line 122, in _open_connection
    self._connection.connect(
    ~~~~~~~~~~~~~~~~~~~~~~~~^
        use_tls=p["use_tls"],
        ^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        password=p["password"] or "",
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 556, in connect
    self._protection_level = self._get_effective_protection_level()
                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 631, in _get_effective_protection_level
    self.send_request(FunctionCode.GET_VAR_SUBSTREAMED, payload, integrity_tail=4)
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 857, in send_request
    response_frame = self._recv_response_frame()
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 950, in _recv_response_frame
    _check_system_event(bytes(response_frame[consumed : consumed + data_length]))
    ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 159, in _check_system_event
    raise S7ProtocolError(
    ...<2 lines>...
    )
snap7.error.S7ProtocolError: Fatal S7CommPlus SystemEvent return_value=-6773067493365317752: 00000000000004a000000000000000000000001700009d6c00009d6d000000080000000200009d6e000000040000039b00009d6f000000040000058600009d7000000003000600009d7100000009a2013b000236ff8800009d72000000040000000000009d73000000040000058600009d7400000004000000e900009d75000000040000000000009d7600000003000600009d7700000003000000009d7800000003100000009d7900000003101100009d7a00000003080100009d7b00000003102900000000

1200-browse.zip

1200 db_read():

DEBUG:snap7.connection:TCP connected to 192.168.0.1:102
DEBUG:snap7.connection:Sent COTP Connection Request
DEBUG:snap7.connection:Negotiated PDU size: 1024
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc1, length=2
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc2, length=16
DEBUG:snap7.connection:Received COTP Connection Confirm
INFO:snap7.connection:Connected to 192.168.0.1:102, PDU size: 1024
DEBUG:s7commplus.connection:=== InitSSL === sending (26 bytes): 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 33 bytes: 03 00 00 21 02 f0 80 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=38 payload (34 bytes): 02 f0 80 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== InitSSL === received (31 bytes): 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:InitSSL response: version=V1, data_length=23
DEBUG:s7commplus.connection:InitSSL response body (27 bytes): 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === sending (192 bytes): 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 199 bytes: 03 00 00 c7 02 f0 80 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=215 payload (211 bytes): 02 f0 80 72 01 00 c8 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 bf 77 df 8f ef 0d 7d c2 5d ea 86 de 27 4a 70 2f 5c 3d f3 21 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === received (208 bytes): 72 01 00 c8 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 bf 77 df 8f ef 0d 7d c2 5d ea 86 de 27 4a 70 2f 5c 3d f3 21 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response: version=V1, data_length=200
DEBUG:s7commplus.connection:CreateObject response body (204 bytes): 32 00 00 04 ca 00 00 00 01 36 00 02 87 1b 87 42 a1 00 00 01 20 82 1f 00 00 a3 81 69 00 15 13 30 31 3a 42 44 34 32 36 42 30 39 31 46 30 38 37 33 31 41 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 31 a3 82 2f 10 02 14 bf 77 df 8f ef 0d 7d c2 5d ea 86 de 27 4a 70 2f 5c 3d f3 21 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 1b 31 3b 36 45 53 37 20 32 31 35 2d 31 42 47 34 30 2d 30 58 42 30 20 3b 56 34 2e 32 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response header: opcode=0x32 function=0x04CA seq=1 transport=0x36
DEBUG:s7commplus.connection:CreateObject response: return_value=0 object_ids=['0x39b', '0x3c2']
DEBUG:s7commplus.connection:Session created: id=0x0000039B (923), version=V1
INFO:s7commplus.connection:ServerSessionVersion captured (84 bytes)
INFO:s7commplus.connection:Public key fingerprint captured: 01:BD426B091F08731A
INFO:s7commplus.connection:Session challenge captured (20 bytes): bf77df8fef0d7dc25dea86de274a702f5c3df321
INFO:s7commplus.connection:SessionKey auth blob generated (180 bytes)
INFO:s7commplus.connection:SecurityKey blob included in session setup, IntegrityId tracking enabled
DEBUG:s7commplus.connection:=== SetupSession === sending (392 bytes): 72 02 01 80 31 00 00 05 42 00 00 00 02 00 00 03 9b 34 00 00 03 9b 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 de d0 cd b0 c8 fc 90 f3 1a 8e 23 00 04 82 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 82 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 24 34 00 0f 8f bd 12 a6 01 01 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 49 37 25 0b 1d 9a 31 c3 ce 2a f6 b3 aa 19 93 bb 75 82 f2 95 b2 c1 f2 c6 4a 9a 89 f1 44 d3 63 6b 9b e1 d0 63 4f 28 4b 3b 26 ff 49 93 24 39 68 65 4d 12 84 0d 48 51 59 82 23 c3 5d 6a 40 ca 73 05 60 46 5a a0 36 4f 24 cf fc d0 94 0f ae 00 d0 da 09 d5 c5 5c 60 9e 3d cd 99 12 ec d6 77 81 9e 08 44 ea f0 49 c6 ba 70 36 2a ea 10 b9 f6 ad a8 d8 02 bd ff df f7 87 d0 a2 7b ed 10 0c 15 d8 1a 3b de db 97 74 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 00 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Sent 399 bytes: 03 00 01 8f 02 f0 80 72 02 01 80 31 00 00 05 42 00 00 00 02 00 00 03 9b 34 00 00 03 9b 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 de d0 cd b0 c8 fc 90 f3 1a 8e 23 00 04 82 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 82 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 24 34 00 0f 8f bd 12 a6 01 01 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 49 37 25 0b 1d 9a 31 c3 ce 2a f6 b3 aa 19 93 bb 75 82 f2 95 b2 c1 f2 c6 4a 9a 89 f1 44 d3 63 6b 9b e1 d0 63 4f 28 4b 3b 26 ff 49 93 24 39 68 65 4d 12 84 0d 48 51 59 82 23 c3 5d 6a 40 ca 73 05 60 46 5a a0 36 4f 24 cf fc d0 94 0f ae 00 d0 da 09 d5 c5 5c 60 9e 3d cd 99 12 ec d6 77 81 9e 08 44 ea f0 49 c6 ba 70 36 2a ea 10 b9 f6 ad a8 d8 02 bd ff df f7 87 d0 a2 7b ed 10 0c 15 d8 1a 3b de db 97 74 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 80 c2 00 82 3e 00 04 84 80 c2 00 82 3f 00 15 00 82 40 00 15 06 32 3b 31 30 38 32 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=32 payload (28 bytes): 02 f0 80 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:=== SetupSession === received (25 bytes): 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:SetupSession response: function=0x0542
INFO:s7commplus.connection:Session setup completed successfully
DEBUG:s7commplus.connection:Session activation: SET_VARIABLE addr 323 = USINT(5)
DEBUG:s7commplus.connection:  IntegrityId: write=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x04F2 seq=3 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 36 c9 a0 c6 03 fc 8f a2 80 90 61 bc a5 c4 40 4b bd 1e b5 1f 60 be c7 6b f0 28 68 11 32 54 70 6b 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 36 c9 a0 c6 03 fc 8f a2 80 90 61 bc a5 c4 40 4b bd 1e b5 1f 60 be c7 6b f0 28 68 11 32 54 70 6b 31 00 00 04 f2 00 00 00 03 00 00 03 9b 34 00 00 03 9b 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=64 payload (60 bytes): 02 f0 80 72 03 00 31 20 5c 81 74 12 5c ae 7f 01 29 9f 02 ae cf 7e 23 f9 b7 76 5d 4c df 7c 0f 08 e0 0b 65 e5 5c 69 a6 ce 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (57 bytes): 72 03 00 31 20 5c 81 74 12 5c ae 7f 01 29 9f 02 ae cf 7e 23 f9 b7 76 5d 4c df 7c 0f 08 e0 0b 65 e5 5c 69 a6 ce 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=49, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 5c8174125cae7f01299f02aecf7e23f9b7765d4cdf7c0f08e00b65e55c69a6ce
DEBUG:s7commplus.connection:  Response data (16 bytes): 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x04F2 seq=3 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (5 bytes): 06 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Session activation completed
DEBUG:s7commplus.connection:Post-auth legitimation: reading challenge from address 303
DEBUG:s7commplus.connection:  IntegrityId: read=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=4 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 04 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 86 50 29 29 a7 4d eb 71 de b2 31 20 4c f6 ca 4b a5 d2 e6 dc f5 bf a5 bb b0 01 ff 62 37 d6 2b 05 31 00 00 05 86 00 00 00 04 00 00 03 9b 34 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 86 50 29 29 a7 4d eb 71 de b2 31 20 4c f6 ca 4b a5 d2 e6 dc f5 bf a5 bb b0 01 ff 62 37 d6 2b 05 31 00 00 05 86 00 00 00 04 00 00 03 9b 34 00 00 03 9b 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=88 payload (84 bytes): 02 f0 80 72 03 00 49 20 ad a4 22 27 5b ee a5 0a 21 47 fe c6 75 ee eb 30 4b 23 f9 8a 32 5c 8e a2 19 7b 57 06 c9 e5 18 a6 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 07 4d e3 c6 2d 75 1a bc d5 a3 d8 63 41 e7 e6 0e ef f4 0b 29 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (81 bytes): 72 03 00 49 20 ad a4 22 27 5b ee a5 0a 21 47 fe c6 75 ee eb 30 4b 23 f9 8a 32 5c 8e a2 19 7b 57 06 c9 e5 18 a6 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 07 4d e3 c6 2d 75 1a bc d5 a3 d8 63 41 e7 e6 0e ef f4 0b 29 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=73, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): ada422275beea50a2147fec675eeeb304b23f98a325c8ea2197b5706c9e518a6
DEBUG:s7commplus.connection:  Response data (40 bytes): 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 07 4d e3 c6 2d 75 1a bc d5 a3 d8 63 41 e7 e6 0e ef f4 0b 29 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x0586 seq=4 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (29 bytes): 00 10 02 14 07 4d e3 c6 2d 75 1a bc d5 a3 d8 63 41 e7 e6 0e ef f4 0b 29 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Legitimation blob generated (248 bytes)
DEBUG:s7commplus.connection:Post-auth legitimation: writing solved blob to address 1846
DEBUG:s7commplus.connection:  IntegrityId: write=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x057C seq=5 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (292 bytes): 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 8d 30 f0 43 4d 34 c7 a0 01 00 00 00 00 00 00 00 3c 00 00 00 d8 40 ce 1c 36 8e 3f 72 a4 fc 09 4c 73 a5 b4 17 ce 6c fc ef 57 11 07 c3 b0 21 73 15 91 99 1c 77 73 15 97 3f 18 21 d1 7a 1f 43 b6 bc a0 ba eb cd eb 87 53 6c 6e 2e e6 47 ef 12 0c 42 ef be ad de 00 00 00 00 40 00 00 00 77 38 ce 65 7e 27 ff 79 9d 05 30 92 61 7b d1 12 19 b3 96 73 c3 1b e8 e6 89 91 0f 70 8a ab be 6b 73 2d c5 37 e8 4c 5a 66 60 d6 4d 48 d3 93 b1 9c cf b9 77 35 f9 ac af fa ce 29 6a 4b c4 d2 07 f6 ef be ad de 01 00 00 00 18 00 00 00 6c 7f a4 11 2b c9 97 a9 59 73 93 29 aa 48 bf 09 35 3e 9a 4f 12 79 aa c5 ef be ad de 02 00 00 00 00 00 00 00 05 00 00 00
DEBUG:s7commplus.connection:  Full frame (348 bytes): 72 03 01 54 20 eb f3 65 23 ab 8f 34 d1 ab 4d bb 5a 96 94 33 6a 50 23 16 bb bd c4 3c 0e ca 21 d9 ce 0e c6 fb 30 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 8d 30 f0 43 4d 34 c7 a0 01 00 00 00 00 00 00 00 3c 00 00 00 d8 40 ce 1c 36 8e 3f 72 a4 fc 09 4c 73 a5 b4 17 ce 6c fc ef 57 11 07 c3 b0 21 73 15 91 99 1c 77 73 15 97 3f 18 21 d1 7a 1f 43 b6 bc a0 ba eb cd eb 87 53 6c 6e 2e e6 47 ef 12 0c 42 ef be ad de 00 00 00 00 40 00 00 00 77 38 ce 65 7e 27 ff 79 9d 05 30 92 61 7b d1 12 19 b3 96 73 c3 1b e8 e6 89 91 0f 70 8a ab be 6b 73 2d c5 37 e8 4c 5a 66 60 d6 4d 48 d3 93 b1 9c cf b9 77 35 f9 ac af fa ce 29 6a 4b c4 d2 07 f6 ef be ad de 01 00 00 00 18 00 00 00 6c 7f a4 11 2b c9 97 a9 59 73 93 29 aa 48 bf 09 35 3e 9a 4f 12 79 aa c5 ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 355 bytes: 03 00 01 63 02 f0 80 72 03 01 54 20 eb f3 65 23 ab 8f 34 d1 ab 4d bb 5a 96 94 33 6a 50 23 16 bb bd c4 3c 0e ca 21 d9 ce 0e c6 fb 30 31 00 00 05 7c 00 00 00 05 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 1a 73 08 1f 09 6b 42 bd 10 01 00 00 00 00 00 00 8d 30 f0 43 4d 34 c7 a0 01 00 00 00 00 00 00 00 3c 00 00 00 d8 40 ce 1c 36 8e 3f 72 a4 fc 09 4c 73 a5 b4 17 ce 6c fc ef 57 11 07 c3 b0 21 73 15 91 99 1c 77 73 15 97 3f 18 21 d1 7a 1f 43 b6 bc a0 ba eb cd eb 87 53 6c 6e 2e e6 47 ef 12 0c 42 ef be ad de 00 00 00 00 40 00 00 00 77 38 ce 65 7e 27 ff 79 9d 05 30 92 61 7b d1 12 19 b3 96 73 c3 1b e8 e6 89 91 0f 70 8a ab be 6b 73 2d c5 37 e8 4c 5a 66 60 d6 4d 48 d3 93 b1 9c cf b9 77 35 f9 ac af fa ce 29 6a 4b c4 d2 07 f6 ef be ad de 01 00 00 00 18 00 00 00 6c 7f a4 11 2b c9 97 a9 59 73 93 29 aa 48 bf 09 35 3e 9a 4f 12 79 aa c5 ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=27 payload (23 bytes): 02 f0 80 72 fe 00 10 00 00 00 00 00 00 02 f6 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:Ignoring non-fatal S7CommPlus SystemEvent (16 bytes)
DEBUG:snap7.connection:Received TPKT: version=3 length=72 payload (68 bytes): 02 f0 80 72 03 00 39 20 24 3d c7 ab c9 bd e2 29 15 5a b0 90 7e f1 5d 06 c4 d9 2e 74 1a 1a 37 c1 60 78 4a 4e db 58 a0 e3 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (65 bytes): 72 03 00 39 20 24 3d c7 ab c9 bd e2 29 15 5a b0 90 7e f1 5d 06 c4 d9 2e 74 1a 1a 37 c1 60 78 4a 4e db 58 a0 e3 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=57, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 243dc7abc9bde229155ab0907ef15d06c4d92e741a1a37c160784a4edb58a0e3
DEBUG:s7commplus.connection:  Response data (24 bytes): 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x057C seq=5 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 17595385856 (5 bytes)
DEBUG:s7commplus.connection:  Response payload (9 bytes): 86 e7 ff fe 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
DEBUG:s7commplus.connection:Legitimation write return_value=0x6CFFFF05
INFO:s7commplus.connection:Post-auth legitimation completed
DEBUG:s7commplus.connection:  IntegrityId: read=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=6 session=0x0000039B
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 06 00 00 03 9b 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 9b 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 00 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 53 22 58 93 96 9e 4a fb b8 c8 b4 48 d2 b6 9a 99 94 b8 00 cf b0 cc 95 af 25 cf 9a c9 1c d7 a5 74 31 00 00 05 86 00 00 00 06 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 53 22 58 93 96 9e 4a fb b8 c8 b4 48 d2 b6 9a 99 94 b8 00 cf b0 cc 95 af 25 cf 9a c9 1c d7 a5 74 31 00 00 05 86 00 00 00 06 00 00 03 9b 34 00 00 03 9b 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=209 payload (205 bytes): 02 f0 80 72 fe 00 c6 00 00 00 00 00 00 04 a0 00 00 00 00 00 00 00 00 00 00 00 17 00 00 9d 6c 00 00 9d 6d 00 00 00 08 00 00 00 02 00 00 9d 6e 00 00 00 04 00 00 03 9b 00 00 9d 6f 00 00 00 04 00 00 05 86 00 00 9d 70 00 00 00 03 00 06 00 00 9d 71 00 00 00 09 a2 01 3b 00 02 36 ff 88 00 00 9d 72 00 00 00 04 00 00 00 00 00 00 9d 73 00 00 00 04 00 00 05 86 00 00 9d 74 00 00 00 04 00 00 00 e9 00 00 9d 75 00 00 00 04 00 00 00 00 00 00 9d 76 00 00 00 03 00 06 00 00 9d 77 00 00 00 03 00 00 00 00 9d 78 00 00 00 03 10 00 00 00 9d 79 00 00 00 03 10 11 00 00 9d 7a 00 00 00 03 08 01 00 00 9d 7b 00 00 00 03 10 29 00 00 00 00
INFO:snap7.connection:Disconnected from 192.168.0.1:102
Traceback (most recent call last):
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\main.py", line 8, in <module>
    client.connect('192.168.0.1')
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\client.py", line 114, in connect
    self._open_connection()
    ~~~~~~~~~~~~~~~~~~~~~^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\client.py", line 122, in _open_connection
    self._connection.connect(
    ~~~~~~~~~~~~~~~~~~~~~~~~^
        use_tls=p["use_tls"],
        ^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        password=p["password"] or "",
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 556, in connect
    self._protection_level = self._get_effective_protection_level()
                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 631, in _get_effective_protection_level
    self.send_request(FunctionCode.GET_VAR_SUBSTREAMED, payload, integrity_tail=4)
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 857, in send_request
    response_frame = self._recv_response_frame()
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 950, in _recv_response_frame
    _check_system_event(bytes(response_frame[consumed : consumed + data_length]))
    ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 159, in _check_system_event
    raise S7ProtocolError(
    ...<2 lines>...
    )
snap7.error.S7ProtocolError: Fatal S7CommPlus SystemEvent return_value=-6773067493365317752: 00000000000004a000000000000000000000001700009d6c00009d6d000000080000000200009d6e000000040000039b00009d6f000000040000058600009d7000000003000600009d7100000009a2013b000236ff8800009d72000000040000000000009d73000000040000058600009d7400000004000000e900009d75000000040000000000009d7600000003000600009d7700000003000000009d7800000003100000009d7900000003101100009d7a00000003080100009d7b00000003102900000000

1200-db_read.zip

xBiggs · 2026-08-20T14:52:20Z

1500 browse()

DEBUG:snap7.connection:TCP connected to 192.168.0.1:102
DEBUG:snap7.connection:Sent COTP Connection Request
DEBUG:snap7.connection:Negotiated PDU size: 1024
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc1, length=2
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc2, length=16
DEBUG:snap7.connection:Received COTP Connection Confirm
INFO:snap7.connection:Connected to 192.168.0.1:102, PDU size: 1024
DEBUG:s7commplus.connection:=== InitSSL === sending (26 bytes): 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 33 bytes: 03 00 00 21 02 f0 80 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=38 payload (34 bytes): 02 f0 80 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== InitSSL === received (31 bytes): 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:InitSSL response: version=V1, data_length=23
DEBUG:s7commplus.connection:InitSSL response body (27 bytes): 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === sending (192 bytes): 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 199 bytes: 03 00 00 c7 02 f0 80 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=216 payload (212 bytes): 02 f0 80 72 01 00 c9 32 00 00 04 ca 00 00 00 01 36 00 02 87 5b 87 28 a1 00 00 01 20 82 1f 01 00 a3 81 69 00 15 13 30 30 3a 31 38 31 42 37 42 30 38 34 37 44 31 31 36 39 34 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 32 a3 82 2f 10 02 14 28 2b 6e c5 d9 d5 ef cb fa 90 c2 4a a6 fb f0 74 9d 5e 3b 91 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 81 82 40 82 3e 00 04 84 81 82 40 82 3f 00 15 1a 31 3b 36 45 53 37 20 35 31 33 2d 31 41 4c 30 31 2d 30 41 42 30 3b 56 32 2e 31 82 40 00 15 08 32 3b 34 38 34 31 32 39 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === received (209 bytes): 72 01 00 c9 32 00 00 04 ca 00 00 00 01 36 00 02 87 5b 87 28 a1 00 00 01 20 82 1f 01 00 a3 81 69 00 15 13 30 30 3a 31 38 31 42 37 42 30 38 34 37 44 31 31 36 39 34 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 32 a3 82 2f 10 02 14 28 2b 6e c5 d9 d5 ef cb fa 90 c2 4a a6 fb f0 74 9d 5e 3b 91 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 81 82 40 82 3e 00 04 84 81 82 40 82 3f 00 15 1a 31 3b 36 45 53 37 20 35 31 33 2d 31 41 4c 30 31 2d 30 41 42 30 3b 56 32 2e 31 82 40 00 15 08 32 3b 34 38 34 31 32 39 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response: version=V1, data_length=201
DEBUG:s7commplus.connection:CreateObject response body (205 bytes): 32 00 00 04 ca 00 00 00 01 36 00 02 87 5b 87 28 a1 00 00 01 20 82 1f 01 00 a3 81 69 00 15 13 30 30 3a 31 38 31 42 37 42 30 38 34 37 44 31 31 36 39 34 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 32 a3 82 2f 10 02 14 28 2b 6e c5 d9 d5 ef cb fa 90 c2 4a a6 fb f0 74 9d 5e 3b 91 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 81 82 40 82 3e 00 04 84 81 82 40 82 3f 00 15 1a 31 3b 36 45 53 37 20 35 31 33 2d 31 41 4c 30 31 2d 30 41 42 30 3b 56 32 2e 31 82 40 00 15 08 32 3b 34 38 34 31 32 39 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response header: opcode=0x32 function=0x04CA seq=1 transport=0x36
DEBUG:s7commplus.connection:CreateObject response: return_value=0 object_ids=['0x3db', '0x3a8']
DEBUG:s7commplus.connection:Session created: id=0x000003DB (987), version=V1
INFO:s7commplus.connection:ServerSessionVersion captured (85 bytes)
INFO:s7commplus.connection:Public key fingerprint captured: 00:181B7B0847D11694
INFO:s7commplus.connection:Session challenge captured (20 bytes): 282b6ec5d9d5efcbfa90c24aa6fbf0749d5e3b91
INFO:s7commplus.connection:SessionKey auth blob generated (180 bytes)
INFO:s7commplus.connection:SecurityKey blob included in session setup, IntegrityId tracking enabled
DEBUG:s7commplus.connection:=== SetupSession === sending (393 bytes): 72 02 01 81 31 00 00 05 42 00 00 00 02 00 00 03 db 34 00 00 03 db 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 8c 86 ef b0 c2 9f a2 96 94 8e 23 00 04 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 80 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 bb 04 76 ac 4e 48 6f c4 01 00 00 00 00 00 00 00 94 16 d1 47 08 7b 1b 18 10 00 00 00 00 00 00 00 cf 5d 7c 1b f5 a7 98 ab 0d 14 1d 23 69 69 2a fe ea 6a 89 9c 5f f1 44 15 c3 1a a6 f1 d4 4c 86 16 8c fe 91 1b b6 06 d2 42 8d f4 fc 11 0b 1e 88 76 51 7f 2a f2 a1 f2 7b ca 0a 66 00 d4 fc a1 0b e4 a2 f6 b9 8a 45 2b 81 37 48 84 6a 84 5a 2b ff 83 34 84 e6 0b 81 da b2 f2 5d ce 01 30 04 4f ac e2 2d aa cd 5a d8 0d 54 86 19 d6 10 90 63 a7 ba c2 bb 47 fb 4b a8 8e ba 28 fa 9c 18 b0 f7 5b 82 ea 0d bf 06 4d 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 81 82 40 82 3e 00 04 84 81 82 40 82 3f 00 15 00 82 40 00 15 08 32 3b 34 38 34 31 32 39 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Sent 400 bytes: 03 00 01 90 02 f0 80 72 02 01 81 31 00 00 05 42 00 00 00 02 00 00 03 db 34 00 00 03 db 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 8c 86 ef b0 c2 9f a2 96 94 8e 23 00 04 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 80 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 bb 04 76 ac 4e 48 6f c4 01 00 00 00 00 00 00 00 94 16 d1 47 08 7b 1b 18 10 00 00 00 00 00 00 00 cf 5d 7c 1b f5 a7 98 ab 0d 14 1d 23 69 69 2a fe ea 6a 89 9c 5f f1 44 15 c3 1a a6 f1 d4 4c 86 16 8c fe 91 1b b6 06 d2 42 8d f4 fc 11 0b 1e 88 76 51 7f 2a f2 a1 f2 7b ca 0a 66 00 d4 fc a1 0b e4 a2 f6 b9 8a 45 2b 81 37 48 84 6a 84 5a 2b ff 83 34 84 e6 0b 81 da b2 f2 5d ce 01 30 04 4f ac e2 2d aa cd 5a d8 0d 54 86 19 d6 10 90 63 a7 ba c2 bb 47 fb 4b a8 8e ba 28 fa 9c 18 b0 f7 5b 82 ea 0d bf 06 4d 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 81 82 40 82 3e 00 04 84 81 82 40 82 3f 00 15 00 82 40 00 15 08 32 3b 34 38 34 31 32 39 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=32 payload (28 bytes): 02 f0 80 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:=== SetupSession === received (25 bytes): 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:SetupSession response: function=0x0542
INFO:s7commplus.connection:Session setup completed successfully
DEBUG:s7commplus.connection:Session activation: SET_VARIABLE addr 323 = USINT(5)
DEBUG:s7commplus.connection:  IntegrityId: write=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x04F2 seq=3 session=0x000003DB
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 04 f2 00 00 00 03 00 00 03 db 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 db 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 50 d9 02 49 9e a2 72 6a 6a 26 c8 4e d2 42 48 0b eb 73 23 18 13 d1 46 6f fb b4 b1 61 b3 2a cb ab 31 00 00 04 f2 00 00 00 03 00 00 03 db 34 00 00 03 db 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 50 d9 02 49 9e a2 72 6a 6a 26 c8 4e d2 42 48 0b eb 73 23 18 13 d1 46 6f fb b4 b1 61 b3 2a cb ab 31 00 00 04 f2 00 00 00 03 00 00 03 db 34 00 00 03 db 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=64 payload (60 bytes): 02 f0 80 72 03 00 31 20 d6 3a b9 bc cd 33 69 85 8c 78 fd bd 16 43 b3 36 9b 21 1e a2 52 01 d2 86 1b 63 e5 60 cf 9a f5 72 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (57 bytes): 72 03 00 31 20 d6 3a b9 bc cd 33 69 85 8c 78 fd bd 16 43 b3 36 9b 21 1e a2 52 01 d2 86 1b 63 e5 60 cf 9a f5 72 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=49, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): d63ab9bccd3369858c78fdbd1643b3369b211ea25201d2861b63e560cf9af572
DEBUG:s7commplus.connection:  Response data (16 bytes): 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x04F2 seq=3 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (5 bytes): 06 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Session activation completed
DEBUG:s7commplus.connection:Post-auth legitimation: reading challenge from address 303
DEBUG:s7commplus.connection:  IntegrityId: read=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=4 session=0x000003DB
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 04 00 00 03 db 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 db 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 23 1d 6c f4 80 53 80 f6 9f f8 1a d9 76 77 9a eb 39 36 a8 fa 4c 07 82 36 12 c2 4c c9 e9 7b 74 4a 31 00 00 05 86 00 00 00 04 00 00 03 db 34 00 00 03 db 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 23 1d 6c f4 80 53 80 f6 9f f8 1a d9 76 77 9a eb 39 36 a8 fa 4c 07 82 36 12 c2 4c c9 e9 7b 74 4a 31 00 00 05 86 00 00 00 04 00 00 03 db 34 00 00 03 db 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=88 payload (84 bytes): 02 f0 80 72 03 00 49 20 18 36 8a 19 63 58 0c 27 d9 f8 ea 19 f5 07 2d 81 8b 2d 4e b5 73 70 b4 06 a6 f4 e4 7c ab cc ef 41 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 a9 b7 0f a0 ea a6 31 1b 2a 9a 06 e1 81 a0 d6 af fb 73 76 e0 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (81 bytes): 72 03 00 49 20 18 36 8a 19 63 58 0c 27 d9 f8 ea 19 f5 07 2d 81 8b 2d 4e b5 73 70 b4 06 a6 f4 e4 7c ab cc ef 41 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 a9 b7 0f a0 ea a6 31 1b 2a 9a 06 e1 81 a0 d6 af fb 73 76 e0 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=73, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 18368a1963580c27d9f8ea19f5072d818b2d4eb57370b406a6f4e47cabccef41
DEBUG:s7commplus.connection:  Response data (40 bytes): 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 a9 b7 0f a0 ea a6 31 1b 2a 9a 06 e1 81 a0 d6 af fb 73 76 e0 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x0586 seq=4 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (29 bytes): 00 10 02 14 a9 b7 0f a0 ea a6 31 1b 2a 9a 06 e1 81 a0 d6 af fb 73 76 e0 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Legitimation blob generated (248 bytes)
DEBUG:s7commplus.connection:Post-auth legitimation: writing solved blob to address 1846
DEBUG:s7commplus.connection:  IntegrityId: write=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x057C seq=5 session=0x000003DB
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 7c 00 00 00 05 00 00 03 db 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (292 bytes): 00 00 03 db 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 94 16 d1 47 08 7b 1b 18 10 00 00 00 00 00 00 00 75 47 49 db 64 eb 3a e4 01 00 00 00 00 00 00 00 3c 00 00 00 fe c7 49 54 37 61 13 28 56 f1 b9 03 ba 7d 86 8f 66 9d d1 b8 c2 e0 c8 a3 39 76 5b 13 83 3c 7f 8f 93 c8 c6 d9 14 20 11 e6 b9 9e d2 50 02 6c 8a 57 41 3e 01 ba ea c5 92 0e f4 37 75 05 ef be ad de 00 00 00 00 40 00 00 00 a8 68 31 cc d6 7e c3 b6 4d 4e ce 5d 74 a2 23 8a 2c 2d 39 0f e7 c6 88 a6 b0 7b 3c 74 f9 ae dd 9b a6 a3 78 12 85 a9 e5 d3 4d d9 fe d5 9f 94 9c 79 5e c1 35 10 04 79 32 10 36 63 75 f4 b9 e1 d5 76 ef be ad de 01 00 00 00 18 00 00 00 e6 a8 cd a5 66 0e 02 22 a6 ce 67 81 71 68 a4 ef b7 bd a1 47 21 c1 ec 43 ef be ad de 02 00 00 00 00 00 00 00 05 00 00 00
DEBUG:s7commplus.connection:  Full frame (348 bytes): 72 03 01 54 20 26 d0 29 ba 0e 4f ec a8 d7 11 84 34 e5 fa 14 8d b9 70 a6 e0 17 b9 95 9c a8 23 23 d4 cc 67 8a f7 31 00 00 05 7c 00 00 00 05 00 00 03 db 34 00 00 03 db 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 94 16 d1 47 08 7b 1b 18 10 00 00 00 00 00 00 00 75 47 49 db 64 eb 3a e4 01 00 00 00 00 00 00 00 3c 00 00 00 fe c7 49 54 37 61 13 28 56 f1 b9 03 ba 7d 86 8f 66 9d d1 b8 c2 e0 c8 a3 39 76 5b 13 83 3c 7f 8f 93 c8 c6 d9 14 20 11 e6 b9 9e d2 50 02 6c 8a 57 41 3e 01 ba ea c5 92 0e f4 37 75 05 ef be ad de 00 00 00 00 40 00 00 00 a8 68 31 cc d6 7e c3 b6 4d 4e ce 5d 74 a2 23 8a 2c 2d 39 0f e7 c6 88 a6 b0 7b 3c 74 f9 ae dd 9b a6 a3 78 12 85 a9 e5 d3 4d d9 fe d5 9f 94 9c 79 5e c1 35 10 04 79 32 10 36 63 75 f4 b9 e1 d5 76 ef be ad de 01 00 00 00 18 00 00 00 e6 a8 cd a5 66 0e 02 22 a6 ce 67 81 71 68 a4 ef b7 bd a1 47 21 c1 ec 43 ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 355 bytes: 03 00 01 63 02 f0 80 72 03 01 54 20 26 d0 29 ba 0e 4f ec a8 d7 11 84 34 e5 fa 14 8d b9 70 a6 e0 17 b9 95 9c a8 23 23 d4 cc 67 8a f7 31 00 00 05 7c 00 00 00 05 00 00 03 db 34 00 00 03 db 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 94 16 d1 47 08 7b 1b 18 10 00 00 00 00 00 00 00 75 47 49 db 64 eb 3a e4 01 00 00 00 00 00 00 00 3c 00 00 00 fe c7 49 54 37 61 13 28 56 f1 b9 03 ba 7d 86 8f 66 9d d1 b8 c2 e0 c8 a3 39 76 5b 13 83 3c 7f 8f 93 c8 c6 d9 14 20 11 e6 b9 9e d2 50 02 6c 8a 57 41 3e 01 ba ea c5 92 0e f4 37 75 05 ef be ad de 00 00 00 00 40 00 00 00 a8 68 31 cc d6 7e c3 b6 4d 4e ce 5d 74 a2 23 8a 2c 2d 39 0f e7 c6 88 a6 b0 7b 3c 74 f9 ae dd 9b a6 a3 78 12 85 a9 e5 d3 4d d9 fe d5 9f 94 9c 79 5e c1 35 10 04 79 32 10 36 63 75 f4 b9 e1 d5 76 ef be ad de 01 00 00 00 18 00 00 00 e6 a8 cd a5 66 0e 02 22 a6 ce 67 81 71 68 a4 ef b7 bd a1 47 21 c1 ec 43 ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=27 payload (23 bytes): 02 f0 80 72 fe 00 10 00 00 00 00 00 00 02 f7 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:Ignoring non-fatal S7CommPlus SystemEvent (16 bytes)
DEBUG:snap7.connection:Received TPKT: version=3 length=72 payload (68 bytes): 02 f0 80 72 03 00 39 20 ea 18 09 ac f3 1f 0b cf 3d 19 5a da 61 84 1e 74 f8 a1 34 2e d2 e9 2d b7 56 e9 e0 45 67 64 27 39 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (65 bytes): 72 03 00 39 20 ea 18 09 ac f3 1f 0b cf 3d 19 5a da 61 84 1e 74 f8 a1 34 2e d2 e9 2d b7 56 e9 e0 45 67 64 27 39 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=57, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): ea1809acf31f0bcf3d195ada61841e74f8a1342ed2e92db756e9e04567642739
DEBUG:s7commplus.connection:  Response data (24 bytes): 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x057C seq=5 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 17595385856 (5 bytes)
DEBUG:s7commplus.connection:  Response payload (9 bytes): 86 e7 ff fe 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
DEBUG:s7commplus.connection:Legitimation write return_value=0x6CFFFF05
INFO:s7commplus.connection:Post-auth legitimation completed
DEBUG:s7commplus.connection:  IntegrityId: read=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=6 session=0x000003DB
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 06 00 00 03 db 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 db 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 00 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 a7 e4 29 e3 e6 f3 cb d9 6d 87 64 b3 2a f6 c8 5c 44 80 8d c1 da 6a f5 db de 70 3e 8d e9 da 86 f8 31 00 00 05 86 00 00 00 06 00 00 03 db 34 00 00 03 db 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 a7 e4 29 e3 e6 f3 cb d9 6d 87 64 b3 2a f6 c8 5c 44 80 8d c1 da 6a f5 db de 70 3e 8d e9 da 86 f8 31 00 00 05 86 00 00 00 06 00 00 03 db 34 00 00 03 db 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=209 payload (205 bytes): 02 f0 80 72 fe 00 c6 00 00 00 00 00 00 04 a1 00 00 00 00 00 00 00 00 00 00 00 17 00 00 9d 6c 00 00 9d 6d 00 00 00 08 00 00 00 02 00 00 9d 6e 00 00 00 04 00 00 03 db 00 00 9d 6f 00 00 00 04 00 00 05 86 00 00 9d 70 00 00 00 03 00 06 00 00 9d 71 00 00 00 09 a2 01 3b 00 02 36 ff 88 00 00 9d 72 00 00 00 04 00 00 00 00 00 00 9d 73 00 00 00 04 00 00 05 86 00 00 9d 74 00 00 00 04 00 00 00 e9 00 00 9d 75 00 00 00 04 00 00 00 00 00 00 9d 76 00 00 00 03 00 06 00 00 9d 77 00 00 00 03 00 00 00 00 9d 78 00 00 00 03 10 00 00 00 9d 79 00 00 00 03 10 11 00 00 9d 7a 00 00 00 03 08 01 00 00 9d 7b 00 00 00 03 10 29 00 00 00 00
DEBUG:snap7.connection:Sent 33 bytes: 03 00 00 21 02 f0 80 72 01 00 12 31 00 00 04 d4 00 00 00 07 00 00 03 db 36 00 00 00 00 72 01 00 00
INFO:snap7.connection:Disconnected from 192.168.0.1:102
Traceback (most recent call last):
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\main.py", line 8, in <module>
    client.connect('192.168.0.1')
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\client.py", line 114, in connect
    self._open_connection()
    ~~~~~~~~~~~~~~~~~~~~~^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\client.py", line 122, in _open_connection
    self._connection.connect(
    ~~~~~~~~~~~~~~~~~~~~~~~~^
        use_tls=p["use_tls"],
        ^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        password=p["password"] or "",
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 556, in connect
    self._protection_level = self._get_effective_protection_level()
                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 631, in _get_effective_protection_level
    self.send_request(FunctionCode.GET_VAR_SUBSTREAMED, payload, integrity_tail=4)
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 857, in send_request
    response_frame = self._recv_response_frame()
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 950, in _recv_response_frame
    _check_system_event(bytes(response_frame[consumed : consumed + data_length]))
    ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 159, in _check_system_event
    raise S7ProtocolError(
    ...<2 lines>...
    )
snap7.error.S7ProtocolError: Fatal S7CommPlus SystemEvent return_value=-6773067493365317752: 00000000000004a100000000000000000000001700009d6c00009d6d000000080000000200009d6e00000004000003db00009d6f000000040000058600009d7000000003000600009d7100000009a2013b000236ff8800009d72000000040000000000009d73000000040000058600009d7400000004000000e900009d75000000040000000000009d7600000003000600009d7700000003000000009d7800000003100000009d7900000003101100009d7a00000003080100009d7b00000003102900000000

1500-browse.zip

1500 db_read():

DEBUG:snap7.connection:TCP connected to 192.168.0.1:102
DEBUG:snap7.connection:Sent COTP Connection Request
DEBUG:snap7.connection:Negotiated PDU size: 1024
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc1, length=2
DEBUG:snap7.connection:Unsupported COTP parameter: code=0xc2, length=16
DEBUG:snap7.connection:Received COTP Connection Confirm
INFO:snap7.connection:Connected to 192.168.0.1:102, PDU size: 1024
DEBUG:s7commplus.connection:=== InitSSL === sending (26 bytes): 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 33 bytes: 03 00 00 21 02 f0 80 72 01 00 12 31 00 00 05 b3 00 00 00 00 00 00 00 00 30 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=38 payload (34 bytes): 02 f0 80 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== InitSSL === received (31 bytes): 72 01 00 17 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:InitSSL response: version=V1, data_length=23
DEBUG:s7commplus.connection:InitSSL response body (27 bytes): 32 00 00 05 a9 00 00 00 00 34 d1 80 b3 a0 80 86 b9 ff 89 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === sending (192 bytes): 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Sent 199 bytes: 03 00 00 c7 02 f0 80 72 01 00 b8 31 00 00 04 ca 00 00 00 01 00 00 01 20 36 00 00 01 1d 00 04 00 00 00 00 00 a1 00 00 00 d3 82 1f 00 00 a3 81 69 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 21 00 15 15 31 3a 3a 3a 36 2e 30 3a 3a 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 28 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 29 00 15 00 a3 82 2a 00 15 0c 70 79 74 68 6f 6e 2d 73 6e 61 70 37 a3 82 2b 00 04 01 a3 82 2c 00 12 80 c3 c9 01 a3 82 2d 00 15 00 a1 00 00 00 d3 81 7f 00 00 a3 81 69 00 15 15 53 75 62 73 63 72 69 70 74 69 6f 6e 43 6f 6e 74 61 69 6e 65 72 a2 a2 00 00 00 00 72 01 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=216 payload (212 bytes): 02 f0 80 72 01 00 c9 32 00 00 04 ca 00 00 00 01 36 00 02 87 5b 87 28 a1 00 00 01 20 82 1f 01 00 a3 81 69 00 15 13 30 30 3a 31 38 31 42 37 42 30 38 34 37 44 31 31 36 39 34 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 32 a3 82 2f 10 02 14 fb cf c0 d0 a3 42 15 8f 18 0f 61 4b 8e 3a 68 0e 9f 6d e5 29 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 81 82 40 82 3e 00 04 84 81 82 40 82 3f 00 15 1a 31 3b 36 45 53 37 20 35 31 33 2d 31 41 4c 30 31 2d 30 41 42 30 3b 56 32 2e 31 82 40 00 15 08 32 3b 34 38 34 31 32 39 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:=== CreateObject === received (209 bytes): 72 01 00 c9 32 00 00 04 ca 00 00 00 01 36 00 02 87 5b 87 28 a1 00 00 01 20 82 1f 01 00 a3 81 69 00 15 13 30 30 3a 31 38 31 42 37 42 30 38 34 37 44 31 31 36 39 34 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 32 a3 82 2f 10 02 14 fb cf c0 d0 a3 42 15 8f 18 0f 61 4b 8e 3a 68 0e 9f 6d e5 29 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 81 82 40 82 3e 00 04 84 81 82 40 82 3f 00 15 1a 31 3b 36 45 53 37 20 35 31 33 2d 31 41 4c 30 31 2d 30 41 42 30 3b 56 32 2e 31 82 40 00 15 08 32 3b 34 38 34 31 32 39 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response: version=V1, data_length=201
DEBUG:s7commplus.connection:CreateObject response body (205 bytes): 32 00 00 04 ca 00 00 00 01 36 00 02 87 5b 87 28 a1 00 00 01 20 82 1f 01 00 a3 81 69 00 15 13 30 30 3a 31 38 31 42 37 42 30 38 34 37 44 31 31 36 39 34 a3 82 2b 00 04 82 80 80 80 02 a3 82 2d 00 15 10 4f 4d 53 50 2e 52 45 4c 2e 38 30 38 39 2e 32 32 a3 82 2f 10 02 14 fb cf c0 d0 a3 42 15 8f 18 0f 61 4b 8e 3a 68 0e 9f 6d e5 29 a3 82 32 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 81 82 40 82 3e 00 04 84 81 82 40 82 3f 00 15 1a 31 3b 36 45 53 37 20 35 31 33 2d 31 41 4c 30 31 2d 30 41 42 30 3b 56 32 2e 31 82 40 00 15 08 32 3b 34 38 34 31 32 39 82 41 00 03 00 03 00 a2 00 00 00 00 72 01 00 00
DEBUG:s7commplus.connection:CreateObject response header: opcode=0x32 function=0x04CA seq=1 transport=0x36
DEBUG:s7commplus.connection:CreateObject response: return_value=0 object_ids=['0x3db', '0x3a8']
DEBUG:s7commplus.connection:Session created: id=0x000003DB (987), version=V1
INFO:s7commplus.connection:ServerSessionVersion captured (85 bytes)
INFO:s7commplus.connection:Public key fingerprint captured: 00:181B7B0847D11694
INFO:s7commplus.connection:Session challenge captured (20 bytes): fbcfc0d0a342158f180f614b8e3a680e9f6de529
INFO:s7commplus.connection:SessionKey auth blob generated (180 bytes)
INFO:s7commplus.connection:SecurityKey blob included in session setup, IntegrityId tracking enabled
DEBUG:s7commplus.connection:=== SetupSession === sending (393 bytes): 72 02 01 81 31 00 00 05 42 00 00 00 02 00 00 03 db 34 00 00 03 db 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 8c 86 ef b0 c2 9f a2 96 94 8e 23 00 04 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 80 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 62 9e fb 2e 34 8a fb 85 01 00 00 00 00 00 00 00 94 16 d1 47 08 7b 1b 18 10 00 00 00 00 00 00 00 50 86 83 90 ce 19 87 d4 01 7b 01 71 2c 5f 6e 32 5f 83 a1 8b 60 ff 1c 7b 49 0e 59 e5 43 c7 c8 a5 56 58 9b ad dd 4a 95 f7 63 98 d2 33 4f 7a 0b 0d c4 b2 cb 49 e7 17 d9 de bd 4d 19 6e 95 13 58 e9 16 e7 95 1f a7 33 18 82 42 b5 5b 54 d1 76 6c 49 11 a6 f0 5a 50 0c da 28 49 17 07 4d 32 99 93 51 5b d7 36 08 e1 55 ee 7d 7c e2 45 fe 5d 94 b7 9e a9 e7 6e 75 57 15 8c 68 45 ad 4e af 92 6b 7d dd 84 42 5a a9 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 81 82 40 82 3e 00 04 84 81 82 40 82 3f 00 15 00 82 40 00 15 08 32 3b 34 38 34 31 32 39 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Sent 400 bytes: 03 00 01 90 02 f0 80 72 02 01 81 31 00 00 05 42 00 00 00 02 00 00 03 db 34 00 00 03 db 02 02 8e 26 82 32 01 00 17 00 00 07 08 8e 09 00 04 00 8e 0a 00 02 00 8e 0b 00 17 00 00 07 21 8e 22 00 05 8c 86 ef b0 c2 9f a2 96 94 8e 23 00 04 10 8e 24 00 04 00 00 8e 0c 00 17 00 00 07 21 8e 22 00 05 d1 85 cc 83 ac b4 93 d1 42 8e 23 00 04 84 80 01 8e 24 00 04 00 00 8e 0d 00 14 00 81 34 ad de e1 fe b4 00 00 00 01 00 00 00 01 00 00 00 62 9e fb 2e 34 8a fb 85 01 00 00 00 00 00 00 00 94 16 d1 47 08 7b 1b 18 10 00 00 00 00 00 00 00 50 86 83 90 ce 19 87 d4 01 7b 01 71 2c 5f 6e 32 5f 83 a1 8b 60 ff 1c 7b 49 0e 59 e5 43 c7 c8 a5 56 58 9b ad dd 4a 95 f7 63 98 d2 33 4f 7a 0b 0d c4 b2 cb 49 e7 17 d9 de bd 4d 19 6e 95 13 58 e9 16 e7 95 1f a7 33 18 82 42 b5 5b 54 d1 76 6c 49 11 a6 f0 5a 50 0c da 28 49 17 07 4d 32 99 93 51 5b d7 36 08 e1 55 ee 7d 7c e2 45 fe 5d 94 b7 9e a9 e7 6e 75 57 15 8c 68 45 ad 4e af 92 6b 7d dd 84 42 5a a9 00 02 00 17 00 00 01 3a 82 3b 00 04 84 00 82 3c 00 04 84 00 82 3d 00 04 84 81 82 40 82 3e 00 04 84 81 82 40 82 3f 00 15 00 82 40 00 15 08 32 3b 34 38 34 31 32 39 82 41 00 03 00 03 00 00 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 00 00 00 00 00 72 02 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=32 payload (28 bytes): 02 f0 80 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:=== SetupSession === received (25 bytes): 72 02 00 11 32 00 00 05 42 00 00 00 02 34 00 00 00 00 00 00 00 72 02 00 00
DEBUG:s7commplus.connection:SetupSession response: function=0x0542
INFO:s7commplus.connection:Session setup completed successfully
DEBUG:s7commplus.connection:Session activation: SET_VARIABLE addr 323 = USINT(5)
DEBUG:s7commplus.connection:  IntegrityId: write=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x04F2 seq=3 session=0x000003DB
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 04 f2 00 00 00 03 00 00 03 db 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 db 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 d1 92 39 42 dc 47 d6 d1 34 f8 b9 4a 28 76 1c c7 de c9 bb 6a ac b3 7c 0a 35 ea 29 b2 ce 08 e1 5b 31 00 00 04 f2 00 00 00 03 00 00 03 db 34 00 00 03 db 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 d1 92 39 42 dc 47 d6 d1 34 f8 b9 4a 28 76 1c c7 de c9 bb 6a ac b3 7c 0a 35 ea 29 b2 ce 08 e1 5b 31 00 00 04 f2 00 00 00 03 00 00 03 db 34 00 00 03 db 01 82 43 00 02 05 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 03 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=64 payload (60 bytes): 02 f0 80 72 03 00 31 20 b5 04 68 64 2d 24 ed 90 d5 0e fc 79 03 e6 6a af 0c 88 a0 5e 32 d0 c3 07 40 5a 9a 53 7c 1d 46 8a 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (57 bytes): 72 03 00 31 20 b5 04 68 64 2d 24 ed 90 d5 0e fc 79 03 e6 6a af 0c 88 a0 5e 32 d0 c3 07 40 5a 9a 53 7c 1d 46 8a 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=49, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): b50468642d24ed90d50efc7903e66aaf0c88a05e32d0c307405a9a537c1d468a
DEBUG:s7commplus.connection:  Response data (16 bytes): 32 00 00 04 f2 00 00 00 03 34 00 06 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x04F2 seq=3 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (5 bytes): 06 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Session activation completed
DEBUG:s7commplus.connection:Post-auth legitimation: reading challenge from address 303
DEBUG:s7commplus.connection:  IntegrityId: read=0
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=4 session=0x000003DB
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 04 00 00 03 db 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 00
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 db 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 54 40 92 f4 e9 57 f9 c9 fe 25 1a 99 2a 44 98 f4 c0 8c 21 16 cb cc 8a f4 c1 30 fb 69 e4 2d d9 2f 31 00 00 05 86 00 00 00 04 00 00 03 db 34 00 00 03 db 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 54 40 92 f4 e9 57 f9 c9 fe 25 1a 99 2a 44 98 f4 c0 8c 21 16 cb cc 8a f4 c1 30 fb 69 e4 2d d9 2f 31 00 00 05 86 00 00 00 04 00 00 03 db 34 00 00 03 db 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 04 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=88 payload (84 bytes): 02 f0 80 72 03 00 49 20 61 63 87 09 63 5a 29 20 c2 b8 48 17 56 8c c5 e9 58 ef 1f 8e 80 70 bd 14 01 36 24 7d 0b e5 32 6a 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 31 90 ba dd 11 3d af 35 27 58 6c 6d 41 69 68 ca ff 1a d6 b2 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (81 bytes): 72 03 00 49 20 61 63 87 09 63 5a 29 20 c2 b8 48 17 56 8c c5 e9 58 ef 1f 8e 80 70 bd 14 01 36 24 7d 0b e5 32 6a 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 31 90 ba dd 11 3d af 35 27 58 6c 6d 41 69 68 ca ff 1a d6 b2 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=73, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 61638709635a2920c2b84817568cc5e958ef1f8e8070bd140136247d0be5326a
DEBUG:s7commplus.connection:  Response data (40 bytes): 32 00 00 05 86 00 00 00 04 34 00 00 10 02 14 31 90 ba dd 11 3d af 35 27 58 6c 6d 41 69 68 ca ff 1a d6 b2 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x0586 seq=4 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 0 (1 bytes)
DEBUG:s7commplus.connection:  Response payload (29 bytes): 00 10 02 14 31 90 ba dd 11 3d af 35 27 58 6c 6d 41 69 68 ca ff 1a d6 b2 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
INFO:s7commplus.connection:Legitimation blob generated (248 bytes)
DEBUG:s7commplus.connection:Post-auth legitimation: writing solved blob to address 1846
DEBUG:s7commplus.connection:  IntegrityId: write=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x057C seq=5 session=0x000003DB
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 7c 00 00 00 05 00 00 03 db 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (292 bytes): 00 00 03 db 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 94 16 d1 47 08 7b 1b 18 10 00 00 00 00 00 00 00 e1 86 cb f8 74 6b 60 c1 01 00 00 00 00 00 00 00 3c 00 00 00 95 16 1c 11 e8 0c 2b 8a a9 dc 93 0f 1e 15 75 03 42 b3 0f ba a1 fc 5a e9 65 cf 87 cb 43 52 f7 bf 4d 96 89 d0 87 68 cc ac 89 d5 ff a8 80 22 1b a6 2c 4a 0a 7b 41 4e d3 cf 8e 82 d9 e0 ef be ad de 00 00 00 00 40 00 00 00 c5 e4 d5 39 f0 ac 77 5b 56 c3 54 d8 19 7e cd eb c6 0c b2 c1 d7 ef 2f 48 33 cf 42 7c 95 fe 83 1d 0d 36 93 92 bb de 21 f1 02 ba 92 67 18 c5 69 9c 0d 66 8b ca 31 0d 45 b6 a8 c0 1d ff 31 92 03 5c ef be ad de 01 00 00 00 18 00 00 00 d9 3a 41 eb 86 56 69 6f c3 45 3a f2 8b 81 a5 d2 f5 76 65 87 93 ee de e6 ef be ad de 02 00 00 00 00 00 00 00 05 00 00 00
DEBUG:s7commplus.connection:  Full frame (348 bytes): 72 03 01 54 20 31 94 18 03 41 c1 78 2c 60 e0 d8 55 27 8b 06 1e 29 cc fa e8 97 28 53 6f 19 ce 50 b9 ec 43 5b 39 31 00 00 05 7c 00 00 00 05 00 00 03 db 34 00 00 03 db 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 94 16 d1 47 08 7b 1b 18 10 00 00 00 00 00 00 00 e1 86 cb f8 74 6b 60 c1 01 00 00 00 00 00 00 00 3c 00 00 00 95 16 1c 11 e8 0c 2b 8a a9 dc 93 0f 1e 15 75 03 42 b3 0f ba a1 fc 5a e9 65 cf 87 cb 43 52 f7 bf 4d 96 89 d0 87 68 cc ac 89 d5 ff a8 80 22 1b a6 2c 4a 0a 7b 41 4e d3 cf 8e 82 d9 e0 ef be ad de 00 00 00 00 40 00 00 00 c5 e4 d5 39 f0 ac 77 5b 56 c3 54 d8 19 7e cd eb c6 0c b2 c1 d7 ef 2f 48 33 cf 42 7c 95 fe 83 1d 0d 36 93 92 bb de 21 f1 02 ba 92 67 18 c5 69 9c 0d 66 8b ca 31 0d 45 b6 a8 c0 1d ff 31 92 03 5c ef be ad de 01 00 00 00 18 00 00 00 d9 3a 41 eb 86 56 69 6f c3 45 3a f2 8b 81 a5 d2 f5 76 65 87 93 ee de e6 ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 355 bytes: 03 00 01 63 02 f0 80 72 03 01 54 20 31 94 18 03 41 c1 78 2c 60 e0 d8 55 27 8b 06 1e 29 cc fa e8 97 28 53 6f 19 ce 50 b9 ec 43 5b 39 31 00 00 05 7c 00 00 00 05 00 00 03 db 34 00 00 03 db 20 04 01 8e 36 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 05 01 00 14 00 81 78 ef be ad de 7c 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 94 16 d1 47 08 7b 1b 18 10 00 00 00 00 00 00 00 e1 86 cb f8 74 6b 60 c1 01 00 00 00 00 00 00 00 3c 00 00 00 95 16 1c 11 e8 0c 2b 8a a9 dc 93 0f 1e 15 75 03 42 b3 0f ba a1 fc 5a e9 65 cf 87 cb 43 52 f7 bf 4d 96 89 d0 87 68 cc ac 89 d5 ff a8 80 22 1b a6 2c 4a 0a 7b 41 4e d3 cf 8e 82 d9 e0 ef be ad de 00 00 00 00 40 00 00 00 c5 e4 d5 39 f0 ac 77 5b 56 c3 54 d8 19 7e cd eb c6 0c b2 c1 d7 ef 2f 48 33 cf 42 7c 95 fe 83 1d 0d 36 93 92 bb de 21 f1 02 ba 92 67 18 c5 69 9c 0d 66 8b ca 31 0d 45 b6 a8 c0 1d ff 31 92 03 5c ef be ad de 01 00 00 00 18 00 00 00 d9 3a 41 eb 86 56 69 6f c3 45 3a f2 8b 81 a5 d2 f5 76 65 87 93 ee de e6 ef be ad de 02 00 00 00 00 00 00 00 05 01 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=27 payload (23 bytes): 02 f0 80 72 fe 00 10 00 00 00 00 00 00 02 f7 00 00 00 00 00 00 00 00
DEBUG:s7commplus.connection:Ignoring non-fatal S7CommPlus SystemEvent (16 bytes)
DEBUG:snap7.connection:Received TPKT: version=3 length=72 payload (68 bytes): 02 f0 80 72 03 00 39 20 7b 3c 2b d6 ac fa d9 e8 6e 11 6e 59 07 96 bd df ee 30 2a 0b 62 1a 99 f7 c0 e0 e9 3e 67 3b da 99 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:=== RECV RESPONSE === raw frame (65 bytes): 72 03 00 39 20 7b 3c 2b d6 ac fa d9 e8 6e 11 6e 59 07 96 bd df ee 30 2a 0b 62 1a 99 f7 c0 e0 e9 3e 67 3b da 99 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00 72 03 00 00
DEBUG:s7commplus.connection:  Frame header: version=V3, data_length=57, header_size=4
DEBUG:s7commplus.connection:  V3 HMAC (32 bytes): 7b3c2bd6acfad9e86e116e590796bddfee302a0b621a99f7c0e0e93e673bda99
DEBUG:s7commplus.connection:  Response data (24 bytes): 32 00 00 05 7c 00 00 00 05 34 c1 c6 91 90 80 86 e7 ff fe 05 00 00 00 00
DEBUG:s7commplus.connection:  Response header: opcode=0x32 function=0x057C seq=5 transport=0x34
DEBUG:s7commplus.connection:  Response IntegrityId: 17595385856 (5 bytes)
DEBUG:s7commplus.connection:  Response payload (9 bytes): 86 e7 ff fe 05 00 00 00 00
DEBUG:s7commplus.connection:  Trailer (4 bytes): 72 03 00 00
DEBUG:s7commplus.connection:Legitimation write return_value=0x6CFFFF05
INFO:s7commplus.connection:Post-auth legitimation completed
DEBUG:s7commplus.connection:  IntegrityId: read=1
DEBUG:s7commplus.connection:=== SEND REQUEST === function_code=0x0586 seq=6 session=0x000003DB
DEBUG:s7commplus.connection:  Request header (14 bytes): 31 00 00 05 86 00 00 00 06 00 00 03 db 34
DEBUG:s7commplus.connection:  IntegrityId (1 bytes): 01
DEBUG:s7commplus.connection:  Request payload (38 bytes): 00 00 03 db 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 00 00 00 00
DEBUG:s7commplus.connection:  Full frame (94 bytes): 72 03 00 56 20 11 2b fd e7 5d ee f1 79 f0 9a 28 79 f5 75 a4 ce 9d 15 4b 99 1d 75 4a 4a c9 35 a3 59 71 d5 dd 18 31 00 00 05 86 00 00 00 06 00 00 03 db 34 00 00 03 db 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Sent 101 bytes: 03 00 00 65 02 f0 80 72 03 00 56 20 11 2b fd e7 5d ee f1 79 f0 9a 28 79 f5 75 a4 ce 9d 15 4b 99 1d 75 4a 4a c9 35 a3 59 71 d5 dd 18 31 00 00 05 86 00 00 00 06 00 00 03 db 34 00 00 03 db 20 04 01 8e 32 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 01 01 00 00 00 00 72 03 00 00
DEBUG:snap7.connection:Received TPKT: version=3 length=209 payload (205 bytes): 02 f0 80 72 fe 00 c6 00 00 00 00 00 00 04 a1 00 00 00 00 00 00 00 00 00 00 00 17 00 00 9d 6c 00 00 9d 6d 00 00 00 08 00 00 00 02 00 00 9d 6e 00 00 00 04 00 00 03 db 00 00 9d 6f 00 00 00 04 00 00 05 86 00 00 9d 70 00 00 00 03 00 06 00 00 9d 71 00 00 00 09 a2 01 3b 00 02 36 ff 88 00 00 9d 72 00 00 00 04 00 00 00 00 00 00 9d 73 00 00 00 04 00 00 05 86 00 00 9d 74 00 00 00 04 00 00 00 e9 00 00 9d 75 00 00 00 04 00 00 00 00 00 00 9d 76 00 00 00 03 00 06 00 00 9d 77 00 00 00 03 00 00 00 00 9d 78 00 00 00 03 10 00 00 00 9d 79 00 00 00 03 10 11 00 00 9d 7a 00 00 00 03 08 01 00 00 9d 7b 00 00 00 03 10 29 00 00 00 00
INFO:snap7.connection:Disconnected from 192.168.0.1:102
Traceback (most recent call last):
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\main.py", line 8, in <module>
    client.connect('192.168.0.1')
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\client.py", line 114, in connect
    self._open_connection()
    ~~~~~~~~~~~~~~~~~~~~~^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\client.py", line 122, in _open_connection
    self._connection.connect(
    ~~~~~~~~~~~~~~~~~~~~~~~~^
        use_tls=p["use_tls"],
        ^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        password=p["password"] or "",
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 556, in connect
    self._protection_level = self._get_effective_protection_level()
                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 631, in _get_effective_protection_level
    self.send_request(FunctionCode.GET_VAR_SUBSTREAMED, payload, integrity_tail=4)
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 857, in send_request
    response_frame = self._recv_response_frame()
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 950, in _recv_response_frame
    _check_system_event(bytes(response_frame[consumed : consumed + data_length]))
    ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "\python-snap7-fix-v1-sessionkey-challenge-layout-fc2932f\s7commplus\connection.py", line 159, in _check_system_event
    raise S7ProtocolError(
    ...<2 lines>...
    )
snap7.error.S7ProtocolError: Fatal S7CommPlus SystemEvent return_value=-6773067493365317752: 00000000000004a100000000000000000000001700009d6c00009d6d000000080000000200009d6e00000004000003db00009d6f000000040000058600009d7000000003000600009d7100000009a2013b000236ff8800009d72000000040000000000009d73000000040000058600009d7400000004000000e900009d75000000040000000000009d7600000003000600009d7700000003000000009d7800000003100000009d7900000003101100009d7a00000003080100009d7b00000003102900000000

1500-db_read.zip

gijzelaerr · 2026-09-01T15:41:42Z

The latest hardware results confirm that this PR fixes a real captured wire-layout regression and improves SystemEvent response handling, but it does not fully resolve #710. I have changed the closing keyword to Progresses #710 so merging this work cannot close the hardware investigation prematurely.

#848 may change the request transport-flag mapping and #827 identifies additional reassembly/silent-skip cases. I am keeping this PR open until those interactions are reviewed and the resulting branch is retested against the available S7-1200/S7-1500 hardware.

gijzelaerr · 2026-09-03T03:31:14Z

Merged current master without rebasing and addressed the remaining async parity cases: short InitSSL and CreateObject replies now raise S7ConnectionError, and async InitSSL uses the same 10-byte minimum as the sync path. Added regression coverage. Local build, full tests (1822 passed, 82 skipped), pre-commit, and the GitHub CI matrix pass.

…pagation

…pagation # Conflicts: # CHANGES.md # s7commplus/connection.py

gijzelaerr · 2026-09-05T08:34:33Z

@Poseidonas @xBiggs You both recently exercised the V1 and response-error paths behind this change. Could you review the current head, especially the V1 challenge layout and the merged notification/SystemEvent receive path? The conflict resolution is now CI-green.

Poseidonas · 2026-09-05T09:51:20Z

Ran the parity suite from #827 against b296261: 36 passed. Full suite on the same head, 1884 passed and 82 skipped, with those 36 included in the count.

The SystemEvent path looks solid to me. I fuzzed _system_event_return_value and _check_system_event with 750k mutated payloads around the shapes they expect, and nothing came out other than S7ProtocolError — every member walk is bounded before it reads, including the truncated-Struct and unknown-datatype cases. The new sequence check in send_request and the _recv_response_frame queueing read cleanly too.

Two things from my side.

The three async divergences I listed earlier are still there, now at s7commplus/async_client.py 808, 953 and 1151 after the package move. Driving the real primitives, not the suite:

call	async	sync counterpart
request on a disconnected client	`RuntimeError: Not connected`	`S7ConnectionError`
frame that is not a COTP DT	`RuntimeError: Expected COTP DT`	`S7ConnectionError`
reconnect with no COTP CC	`RuntimeError`	`S7ConnectionError`

The reason I keep raising these is the symptom underneath: _read_typeinfo_rid returns 0 in both the disconnected and the bad-frame case rather than propagating, which is the #827 swallow on the read path. If you would rather handle that separately from this PR I can move the three pinning tests out of the suite, they are only there to keep the current behaviour honest.

A V1 question on the legitimation challenge. The sync side now builds the V1 shape through _build_get_var_substreamed with the VLQ sequence field and the three-byte fill, sent with integrity_tail=3. S7CommPlusAsyncClient._get_legitimation_challenge still goes through _build_get_var_substreamed_payload with integrity_tail=4, so for the same LegitimationId.SERVER_SESSION_REQUEST the two produce different bytes:

sync  00 00 12 34 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 00 00 00 07 01 00 00 00
async 00 00 12 34 20 04 01 82 2f 00 00 04 e8 89 69 00 12 00 00 00 00 89 6a 00 13 00 89 6b 00 04 07 00 00 01 00 00 00 00

Same length, different ObjectQualifier encoding and a four-byte fill instead of three. The async client takes its protocol version from CreateObject and only forces V2 when TLS is active, so on a non-TLS S7-1200 it stays on V1, which is where this PR says the old shape gets rejected. Is the async path expected to reach legitimation on such a PLC? If it is, it looks like it wants the same treatment; if legitimation there is TLS-only in practice then this is nothing.

I have no S7-1200 or S7-1500 here, so none of the above is hardware-confirmed. The wire layout itself, the V1 challenge bytes and the notification ordering are yours to verify against the captures.

Co-Authored-By: Codex <noreply@openai.com>

gijzelaerr · 2026-09-07T07:49:54Z

Addressed the async error-contract findings in fe5d7d9.

disconnected requests and reconnects now raise S7ConnectionError;
missing/malformed COTP CC and DT frames now raise S7ConnectionError, including short-frame guards;
regression tests drive the reported disconnected, reconnect, and non-DT paths.

On the V1 challenge question: the async client deliberately supports TLS legitimation only today. authenticate() rejects non-TLS sessions before _get_legitimation_challenge(), so the V1 SessionKey layout is not reachable through the async API. Full legacy async authentication remains tracked in #836 rather than being partially added here.

Validation: 1,851 passed, 82 skipped; full pre-commit suite and source/wheel build pass.

Co-Authored-By: Codex <noreply@openai.com>

…ct-20260908 # Conflicts: # s7commplus/connection.py # tests/test_s7_unit.py

fix(s7commplus): restore V1 challenge wire layout

d7fdda8

gijzelaerr added 2 commits August 20, 2026 07:10

fix(s7commplus): correlate responses across system events

7370624

Merge remote-tracking branch 'origin/master' into fix-v1-sessionkey-c…

fc2932f

…hallenge-layout

This was referenced Sep 1, 2026

S7-1200 Session Setup Incomplete #710

Open

_parse_read_response does not raise an exception in case of a SystemEvent #827

Open

gijzelaerr added 4 commits September 2, 2026 11:49

fix(s7commplus): propagate browse protocol errors

bd0cf38

fix(s7commplus): align async browse errors

f1e1e0f

Merge master into fix-v1-sessionkey-challenge-layout

7a88ac7

Raise connection errors for short async setup replies

07aabf4

gijzelaerr added 3 commits September 5, 2026 09:47

Merge remote-tracking branch 'origin/master' into fix/pr841-error-pro…

a3ee5a4

…pagation

chore: refresh PR mergeability after master merge

3eb0cc2

Merge remote-tracking branch 'origin/master' into fix/pr841-error-pro…

b296261

…pagation # Conflicts: # CHANGES.md # s7commplus/connection.py

gijzelaerr requested review from spreeker and removed request for spreeker September 5, 2026 08:26

fix(async): align connection error semantics

fe5d7d9

Co-Authored-By: Codex <noreply@openai.com>

Merge master into fix-v1-sessionkey-challenge-layout

b320c5e

Co-Authored-By: Codex <noreply@openai.com>

gijzelaerr modified the milestones: 4.1, 4.0 Sep 8, 2026

gijzelaerr added the S7CommPlus label Sep 8, 2026

Merge remote-tracking branch 'origin/master' into repair/pr841-confli…

9525adf

…ct-20260908 # Conflicts: # s7commplus/connection.py # tests/test_s7_unit.py

Poseidonas added this to Industrial open source Sep 8, 2026

Poseidonas moved this to Waiting on review in Industrial open source Sep 8, 2026

Navigation Menu

Uh oh!

fix(s7commplus): restore V1 challenge wire layout - #841

fix(s7commplus): restore V1 challenge wire layout#841
gijzelaerr wants to merge 13 commits into
masterfrom
fix-v1-sessionkey-challenge-layout

gijzelaerr commented Aug 19, 2026 •

edited

Loading

Uh oh!

xBiggs commented Aug 19, 2026

Uh oh!

bvanelli commented Aug 19, 2026

Uh oh!

gijzelaerr commented Aug 20, 2026

Uh oh!

xBiggs commented Aug 20, 2026

Uh oh!

xBiggs commented Aug 20, 2026

Uh oh!

gijzelaerr commented Sep 1, 2026

Uh oh!

gijzelaerr commented Sep 3, 2026

Uh oh!

gijzelaerr commented Sep 5, 2026

Uh oh!

Poseidonas commented Sep 5, 2026

Uh oh!

gijzelaerr commented Sep 7, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

4 participants

Uh oh!

Conversation

gijzelaerr commented Aug 19, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Summary

Root cause

Validation

Hardware validation requested

Uh oh!

xBiggs commented Aug 19, 2026

Uh oh!

bvanelli commented Aug 19, 2026

Uh oh!

gijzelaerr commented Aug 20, 2026

Uh oh!

xBiggs commented Aug 20, 2026

Uh oh!

xBiggs commented Aug 20, 2026

Uh oh!

gijzelaerr commented Sep 1, 2026

Uh oh!

gijzelaerr commented Sep 3, 2026

Uh oh!

gijzelaerr commented Sep 5, 2026

Uh oh!

Poseidonas commented Sep 5, 2026

Uh oh!

gijzelaerr commented Sep 7, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

4 participants

gijzelaerr commented Aug 19, 2026 •

edited

Loading