Rockwell Automation 1775-S5_SR5,D17756.5.5 User Manual PLC-3 FAMILY I/0 - Manual (Page 166)

Appendix
B
B-1
DH/DH+ Error Codes
This appendix describes the error codes that the scanner uses to report
DH/DH+ communication errors. Errors are of three types:
local
reply
remote
The scanner generates local errors while trying to execute one of its own
DH/DH+ message procedures. The message instruction sets the erro bit
and records the error in the message control word (see “Ladder Program,”
page 4-6). The module also stores the local error codes in the user symbol
ERROR (see “DH/DH+ Message Procedure Diagnostics,” page 7-1).
Possible local errors and their meanings are listed in Table B.A.
The scanner generates reply errors while trying to respond to a command
message received from a remote DH or DH+ station. The scanner inserts
the reply error code in the STS or EXT STS bytes of any reply message
packet it transmits to a remote station. For reply errors, there is a direct
correlation between the error codes in the STS and EXT STS bytes of reply
messages and the error codes reported at the remote station:
If the scanner generates these codes: Then the command
station stores the error
STS byte
(hex)
EXT STS byte
(in hex)
station stores the error
code in decimal
00
10
30
40
50
60
70
F0
F0
F0
F0
F0
F0
F0
F0
F0
F0
F0
not used
not used
not used
not used
not used
not used
not used
1
2
3
4
5
6
7
8
9
A
B
no error
81
83
84
85
86
87
231
232
233
234
235
236
237
238
239
240
241
Introduction
Local Error Codes
Reply Error Codes