Rockwell Automation Publication 2080-UM002N-EN-E - November 2022 115
Chapter 6 Micro870 Controller Distributed Network Protocol
Diagnostics for Ethernet Channel
Diagnostic Counters and Errors in DNP3 Slave subsystem for the Ethernet channel are shown
in Connected Components Workbench software. Click Diagnose to display the Diagnostic page.
Figure 10 - Communication Diagnostics for Ethernet Port
Table 10 - Error Codes
Value (DEC) Mnemonic Description
0 ERROR_PHYS_TRANSMIT Error returned from target transmit routine
1 ERROR_PHYS_CHAR_TIMEOUT Intercharacter timeout occurred
2 ERROR_PHYS_REMOTE_CLOSE Remote side of channel closed connection
3 ERROR_LINK_FRAME_LENGTH Incoming frame too short or exceeded buffer size
4 ERROR_LINK_ADDRESS_UNKNOWN Received frame was for an unknown link address
5 ERROR_LINK_ILLEGAL_FUNCTION Illegal link function code in received frame
6 ERROR_LINK_INVALID_CHECKSUM Invalid checksum or CRC
7 ERROR_LINK_NOT_RESET Link has not been reset, frame rejected
8 ERROR_LINK_FCB Received invalid frame count bit
9 ERROR_LINK_INVALID_START_CHAR Did not receive correct starting sync char
10 ERROR_LINK_FRAME_TIMEOUT Entire frame was not received in specified time
11 ERROR_LINK_CNFM_TIMEOUT Link Confirm was not received in specified tim
12 ERROR_LINK_STATUS_TIMEOUT Link status response not received in specified time
The following link errors are used by 101/103
13 ERROR_LINK_WRONG_SESN Response was not from expected session
14 ERROR_LINK_WRONG_REPLY Received unexpected reply, frame rejected
15 ERROR_LINK_INVALID_2ND_CHAR Did not receive correct second sync char
16 ERROR_LINK_INVALID_END_CHAR Did not receive correct ending sync character
17 ERROR_LINK_MISMATCHING_LENGTH Variable length bytes in FT1.2 frame did not match
18 ERROR_LINK_INV_DIR Received invalid dir bit in control octet
The following link errors are used by 104
19 ERROR_LINK_NO_CNFM_RECEIVED Confirm of 104 U-format APDU not received
20 ERROR_LINK_NO_ACK_RECEIVED Acknowledge of 104 I-format APDU not received
21 ERROR_LINK_SEQUENCE_UNKNOWN Unknown confirming sequence number in received APDU
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