Mitsubishi FX3U-128MR-ES-A PLC CPU Base Unit for MELSEC-F Series

The Mitsubishi FX3U-128MR-ES-A (FX3U-128MR-ES-A) is a high-performance programmable logic controller CPU base unit designed for the MELSEC-F FX3U series. This compact controller features 128 integrated input and output channels, consisting of 64 digital inputs operating at 24 V DC sink or source and 64 digital relay outputs rated at 2 A with 240 V AC or 30 V DC with a 10 ms response time. Developed for demanding machine control, the unit provides a large program memory capacity of 64,000 steps in RAM and supports system expansion up to 256 I/O points. Integrated RS-422 serial communication enables dependable connectivity with human-machine interfaces, programming units, and peripheral devices. Powered by a universal 100 to 240 V AC line voltage, the controller is engineered for standard DIN-rail mounting in control cabinets. Typical applications include packaging machinery, material handling equipment, automated assembly lines, and general manufacturing process control.