Rockwell Automation Publication 1766-UM001O-EN-P - September 2021 267
Appendix F MicroLogix 1400 Distributed Network Protocol
17 Reserved
TCP Server – Link Layer Diagnostics for DNP3 TCP Server.18 Reserved
19 Reserved
20 Counter for Commands Received
UDP Datagram – Link Layer Diagnostics for DNP3 UDP.
21 Counter for Commands Received with Error
22 Counter for Replies Sent
23 Reserved
24 Reserved
25 Reserved
26 Error Count in sessions
27 Error Code in sessions*
28 Number of Sockets in use
29 Maximum Sockets Allowed
30 Reserved
31 Reserved
32 Counter for Replies Received
33 Reserved
34 Reserved
35 Reserved
36 Reserved
37 Reserved
38 Reserved
39 Reserved
40 Counter for Commands Sent
TCP Client – Link Layer Diagnostics for DNP3 TCP Client.
41 Reserved
42 Counter for Replies Received
43 Counter for Replies Received with Error
44 Counter for Replies Timed Out
45 Reserved
46 Error Count in sessions
47 Error Code in sessions*
48 Outgoing Message Connections
49 Maximum Connections Allowed
50 Counter for Commands Received
51 Reserved
52 Counter for Replies Transmitted
53 Reserved
54 Reserved
55 Reserved
56 Reserved
57 Reserved, Firmware use only
58 Reserved, Firmware use only
59 Reserved, Firmware use only
60
Application Layer Error Codes:
0: NO_ERROR – No error found in the Application Layer.
1: FC_CANNOT_BROADCAST – Reserved
2: FC_NOT_SUPPORTED – The received packet has unsupported Function Code.
3: OBJ_NOT_SUPPORTED – The received packet has unsupported object(s).
4: BAD_REQUEST_LENGTH – Reserved
5: CONFIGURATION_ERROR – The error was caused by the invalid configuration during packet
generating. For example, invalid Data-Set Configuration.
DNP3 Slave – Application Layer Diagnostics for DNP3
Slave.
Table 32 - Data File for Troubleshooting (Continued)
Word Offset Description Category
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