The Omron CJ1W-MD233 is a basic I/O expansion module from Omron Automation, designed for use with the CJ I/O Bus system in industrial control applications. It provides 16 digital inputs (PNP/NPN) operating within a voltage range of 20.4–26.4 VDC, along with 16 NPN digital outputs that support an output voltage range of 10.2–26.4 VDC and a maximum load current of 0.5 A per point. The CJ1W-MD233 also allows adjustable ON/OFF delay times from 0 to 32 milliseconds, enabling precise timing control for diverse automation requirements. Compact and efficient, this module integrates seamlessly with CJ-series PLC systems. The CJ1W-MD233 may be implemented in automation environments across North America, Europe, Asia, and worldwide, providing dependable input/output performance and flexible expansion for industrial control setups.