The FX3U-80MR/ES-A is a high-capacity compact main base unit from Mitsubishi MELSEC-FX3U 3rd generation micro PLC series, serving as the core logic controller for medium-sized small automation systems.
It integrates built-in CPU, power supply, memory and complete digital I/O terminals in one compact body. Powered by universal AC 100–240V mains, it carries 40 DC 24V sink/source compatible digital inputs and 40 mechanical relay outputs. The unit executes ladder logic, arithmetic, high-speed counting, pulse positioning and serial communication tasks, supporting flexible I/O expansion, analog modules and fieldbus adapters. With reliable relay contact switching for mixed AC/DC field loads, it delivers cost-effective all-in-one control for packaging, conveyor, textile and general machinery without separate power and CPU modules.