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Ethernet Communications Section 7-3
OMRON PLC Settings
Set the Ethernet port as shown below in the PLC Setup using the CX-Pro-
grammer.
Sample Ladder Programming for OMRON PLC
This section provides an example of programming to monitor Safety Input ter-
minal data of a G9SP-series Controller from an OMRON Standard PLC.
Ethernet Communications Sequence
The G9SP-series Controller returns a response to the command sent from the
Standard PLC.
Parameter Description Set value for this example
IP address IP address of the CJ1W-ETN21 192.168.250.1
Subnet mask Subnet mask of the CJ1W-ETN21 255.255.255.0
Standard PLC G9SP-series Controller
Sent command
Reception response
Send processing
Receive processing
Send processing
Sent command
Reception response
Receive processing
Send processing
Send/receive processing
Send/receive processing
Initialization
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