Omron CJ1W-SCU41, Operation Manual

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FINS
command
Host Link
Host Link
header
Host Link
terminator
SEND(090),
RECV(098),
CMND(490) SEND(090): Sends data to host computer
RECV(098): Reads data from host computer
CMND(490): Executes any FINS command
Slave-initiated FINS commands can also
be sent from PCs on remote networks.
FINS
command
Host Link
Host Link
header
Host Link
terminator
Remote network
(Controller Link
or Ethernet)
SEND(090),
RECV(098),
CMND(490)
FINS
command
Send/receive sequence
Protocol
General-purpose external device
Serial Communications Unit
PMCR(260)