Rockwell Automation 1785-Vx0B, D17856.5.9 PLC-5 VME VMEbus Programmable Controllers User Manual - Manual (Page 69)

Chapter 5
Commands
5-8
These are the command-protocol codes placed in the error-code field of the
command-control register when the ERR bit is 1.
Code Explanation
00H No error
01H Invalid value in command register
02H Cannot access first word of command block (usually a VMEbus bus error)
03H Cannot access other than first word of command block
04H Cannot write response word in command block
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
Command-Protocol
Error Codes
Response-Word
Error Codes