The Omron CJ1W-MD231 Input Output Module is a modular I/O expansion unit for Omron CJ1W programmable logic controllers, designed to add additional control and sensing points to a CJ1W system. As part of the CJ1W-MD family, it integrates with CJ1W PLCs to provide expanded input and output channels, enabling broader automation tasks without replacing the base controller. Used to expand the CJ1W PLC’s I/O, it supports common automation configurations such as interfacing with sensors, actuators, conveyors, and sequential processes when paired with compatible CJ-series hardware.
