Response-word error codes, Pccc command status codes – Rockwell Automation 1785-Vx0B, D17856.5.9 PLC-5 VME VMEbus Programmable Controllers User Manual User Manual
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Appendix D
Troubleshooting
D-3
These are errors reported in the response word of the command block
when the command cannot be carried out successfully. The even byte of
the response word describes the type of error and the odd byte describes
the time or situation of occurrence.
Code
Explanation
00FFH
Command successfully completed
0200H
Bad address modifier in command block
0300H
Bad VME address in command block
0400H
Bad command word (word 0)
0500H
Bad data/packet size (word 10)
0600H
Local PCCC queue overflow; PCCC not processed
8000H
VMEbus error
The STS field contains errors found by the remote node receiving the
command. The following table contains error codes (in hex) that you may
find in the STS field and a general description of each.
Code (hex)
Explanation
00
No error
10
Illegal command or format
20
Host has a problem and will not communicate
30
Remote node host is missing, disconnected, or shut down
40
Host could not complete function due to hardware fault
50
Addressing problem or memory protect rungs
60
Function disallowed due to command protection selection
70
Processor is in program mode
80
Compatibility mode file missing or communication zone problem
90
Remote node cannot buffer command
A0
Not used
B0
Remote node problem due to download
C0
Cannot execute command due to active IPBs
D0
Not used
E0
Not used
F0
There is an error code in the EXT STS byte
Response-Word
Error Codes
PCCC Command
Status Codes