Mitsubishi FX3S-20MR-DS-K Programmable Logic Controller for FX3S Series

The Mitsubishi FX3S-20MR-DS-K (FX3S-20MR-DS-K) is a compact programmable logic controller main unit developed for the MELSEC-F FX3S series. Designed for entry-level and scalable automation systems, this PLC main unit delivers reliable sequence control, fast processing performance, and integrated program memory for handling dedicated machinery and distributed industrial processes. It operates seamlessly alongside other Mitsubishi Electric automation hardware, functioning as the primary central processing unit across compact manufacturing equipment, automated workstations, and standalone control cabinets. Engineered to optimize panel space and ensure straightforward commissioning, the FX3S-20MR-DS-K supports system customization through optional expansion boards and special communication adapters. Its flexible architecture allows operators to interface directly with sensors, switches, relays, and field actuators, providing deterministic logic execution for packaging machinery, material handling setups, and discrete assembly lines. The rugged main unit design provides dependable operational stability across demanding factory environments, serving as a versatile and cost-effective automation solution for modern control architectures.