Mitsubishi A227XB-T14P02D-C Combined Digital I/O Unit for MELSEC-F Series

The Mitsubishi A227XB-T14P02D-C (A227XB-T14P02D-C) is a combined digital input and output module designed for use with Mitsubishi MELSEC-F (FX) series programmable logic controllers. Offering a total of 20 I/O channels, this mixed expansion unit incorporates 12 digital inputs operating at 24 V DC alongside 8 digital outputs with normally open relay contacts. Engineered to match the functional specifications of the FX1S-20MR-DS unit, it facilitates reliable signal interfacing and control in compact machinery setups. In manufacturing environments, the unit is utilized to monitor binary sensor signals, pushbuttons, and limit switches while simultaneously driving field actuators, auxiliary contactors, indicator lamps, and control valves. The 24 V DC input circuitry ensures dependable noise-immune logic detection, whereas the robust electromechanical relay outputs allow versatile switching across various load requirements. Designed for seamless integration into MELSEC-FX controller architectures, the module delivers consistent performance and signal isolation in standard machine control, packaging systems, assembly cells, and material handling applications.