Mitsubishi FX3U-80MR-ES-A PLC Main Unit for MELSEC-F FX3U Series

The Mitsubishi FX3U-80MR-ES-A (FX3U-80MR-ES-A) is a high-performance programmable logic controller main unit engineered for the MELSEC-F FX3U series. Designed for complex factory automation and industrial machinery control, this base CPU unit integrates 80 onboard inputs and outputs to manage demanding sequencing and automation tasks. The integrated I/O configuration features 40 digital inputs rated for 24 V DC sink or source operation and 40 normally open relay outputs supporting up to 2 A at 240 V AC or 30 V DC with a 10-millisecond response time. The unit provides an internal program memory capacity of 64,000 RAM steps and can expand to control up to 256 local and remote I/O points. Electrical interfacing is handled through robust screw terminal blocks, while an integrated RS-422 interface enables direct programming, peripheral connection, and serial communication. Operating on a 100 to 240 V AC supply voltage, the module is engineered for standard DIN rail mounting with an overall width of 285 mm. It serves as a central controller across packaging, material handling, assembly, and automated manufacturing systems.