Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 163)

Appendix
A
AĆ1
Message Formats
This appendix presents the detailed message formats for each type of
command and reply message that the PLC–3 can send and/ore receive.
We discuss the message format in the following order:
Basic Command Set
Protected bit write
Protected write
Unprotected bit write
Unprotected read
Unprotected write
PLC–3 Commands
Bit write
Word range read
Word range write
File read
File write
Privileged Commands
Privileged read
Privileged write
Shutdown request
Download request
Upload request
Restart request
Diagnostic counters reset
Diagnostic loop
Diagnostic read
Diagnostic status
*Set ENQs
*Set NAKs
*Set timeout
*Set variables
Introduction