This PLC has two ports:

To setup the Port, set the protocol to "Host Link" and setup the unit number required.

To setup the peripheral port with (CIF01 or CIF11), set the protocol to "Host Link" and setup the unit number, THEN turn the power off and switch DIP switch 4 ON to allow the plc to use the settings.

Omron Interface comms settings    E,7,2.

The PLC Must be in MONITOR mode to accept write commands from the computer.

Both ports tested with a CJM PLC 13/9/2005.

When changing the unit number, the CX software may fail to talk to the PLC again. You have to set the UNIT number in the CX software settings to match that of the PLC.

Note the CJM switches for both ports are defined for diferent modes, for one Off is AUTO, for the other Off is SETUP (read the DIP switch label carefully).