Mitsubishi FXON-40MR-DS Digital I/O Unit for MELSEC FX Series

The Mitsubishi FXON-40MR-DS (FXON-40MR-DS) is a combined digital input and output unit designed for the MELSEC-F (FX) series programmable logic controller family. Engineered to extend system capabilities in industrial control architectures, this compact module provides a total of 40 discrete points for automation and control tasks. It integrates 24 digital DC inputs rated for 24 V DC operation alongside 16 digital relay outputs featuring normally open contacts. Functionally equivalent to the FX0N40MRDS designation, the unit delivers dependable input sensing and electromechanical output switching for plant equipment, handling signal routing between field devices and central processing systems. Operating seamlessly with compatible MELSEC-F and FX series PLCs, the FXON-40MR-DS supports diverse manufacturing, assembly, and processing environments by interfacing with sensors, switches, actuators, and contactors. Its high-density 40 I/O configuration allows operators to consolidate digital wiring in machinery setups, reducing panel footprint while maintaining reliable control over factory machinery and automated sequences.