What this adapter does for a CJ1M line
The Omron CJ1W-CIF11 is an accessory adapter that converts an RS-232C port on a CJ1M Series PLC to RS-422/485, extending the communication distance and allowing multi-drop connections to drives, HMIs, or remote I/O.
For a new design, consider the CJ1W-CIF01 (RS-232C only) or a third-party serial converter if RS-422/485 is required.
Compatibility and fit
The CJ1W-CIF11 is listed for use with the Omron CJ1M Series PLCs. It connects to the RS-232C port on the CPU or a serial option board; no additional configuration is required beyond setting the PLC's serial protocol to match the target device.