The Omron CJ1W-SCU32 PLC Serial Communications Unit adds two serial communication ports to a CJ-series Programmable Logic Controller architecture for exchanging data with compatible automation devices. Its interfaces support RS-232C and RS-422A/485 communication and can be applied to host link, NT link, and serial gateway connections. By separating serial communication functions from standard digital and analog I/O, the module allows the controller to communicate with external devices while continuing its machine-control sequence. This makes it useful in PLC systems that require dedicated serial connectivity for operator interfaces and other supported equipment. The CJ1W-SCU32 belongs to the CJ1W architecture and extends the PLC serial connectivity range associated with Omron automation systems.
