Rockwell Automation 1771-KA2 Communication Adapter Module - Manual (Page 139)

Appendix
A
A-1
Error Code Listing
Code
STS Byte
of Reply
Message
(in Hex)
Meaning
00
01, 02
03
04
05
06
07
08
00 No Error
Processor communications problem. May be processor fault.
No memory in communication adapter module for START bit file
MEMORY ACCESS RUNG FORMAT
First GET instruction incorrectly entered
Invalid station number
Second GET instruction incorrectly entered
Third GET instruction incorrectly entered
Third GET address less than second GET address (improper access
boundary definition)
09
10
11
12
13
14
15
Invalid end of access branch (BRANCH END instruction must be
inserted.
Invalid end of access rung
Beginning of next rung invalid. (Refers to any rung after a memory
access rung.) Or, BRANCH START instruction missing.
COMMAND RUNG FORMAT
START bit in lower byte. (START bit must be selected from upper
byte, bits 10-17)
Second EXAMINE element incorrectly entered
Invalid command code
Invalid remote station number in command code
16
17
18
19
20
21
22
Invalid element in bit write rung
First GET incorrectly entered (word command format)
Second GET incorrectly entered (word command format)
Third GET incorrectly entered (word command format)
End of rung incorrectly entered (word command format)
Beginning of new command rung invalid or memory access rung
programmed following command rung.
REMOTE/LOCAL FAULT word not in data table. (START/DONE word
incorrectly chosen.)
23
24
26
27
28
29
Unprotected command not allowed by switch setting at local station.
Same start bit used in more than one command rung.
Excessive number of command rungs (more than 256).
Timeout setting too large. Valid timeout settings are 011 to 407. A
setting of 010 disables the timeout.
Bad address in command rung.
Bad size in read/write command.