Omron CJ1W-SCU41, Operation Manual

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Communications Port
Enabled Flag
Network communications
instructions
(PMCR(260)/SEND(090)/
RECV(098)/CMND(490))
Communications Port
Error Flag
Communications Port
Completion Code
Instruction 1
being
executed
Instruction 2
being
executed Instruction 3
being
executed
End of previous
processing
(Normal end)
(No unit correspond-
ing to unit address)
(Normal end)
Response Required
Host computer Command
Command
Response
Response
Serial Communications
Board/Unit
Communications Port Enabled Flag
Command acknowledged
Command completed
No Response Required
Host computer
Serial Communications
Board/Unit
Command
Command Response
Communications Port Enabled Flag
Command acknowledged Command completed
(1)
(2)
(1)
(2)