OMRON NX-OD4256 8-Point Transistor Output Unit for NX Series

The OMRON NX-OD4256 is an eight-point digital transistor output unit designed for integration within the OMRON NX Series modular I/O system and Sysmac automation controllers. Operating at a rated load voltage of 24 VDC with a maximum load current of 0.5 A per point, this compact unit delivers reliable PNP sourcing output switching for external industrial loads such as solenoid valves, indicators, relays, and auxiliary actuators. It connects seamlessly to NX bus couplers, including EtherCAT and EtherNet/IP communication units, allowing distributed field control across automated manufacturing lines and complex machinery. The unit supports high-speed signal processing and deterministic I/O updates to ensure synchronized machine control. Designed for rapid maintenance and simplified panel wiring, the module features a space-saving slice design that mounts directly to a standard DIN rail. The OMRON NX-OD4256 is widely used in packaging machinery, material handling systems, assembly equipment, and discrete manufacturing processes where dependable digital output distribution and space efficiency are essential.