Mitsubishi FX3U-422-BD - PLC Network Communication Module

The Mitsubishi FX3U-422-BD PLC is an FX3U-type RS-422 communication module engineered for fast and reliable data exchange between Mitsubishi PLCs and compatible devices. With a slim profile — 53.5 mm depth, 19.6 mm width, and 46.1 mm height — it saves valuable panel space while maintaining robust performance.

Weighing just 0.02 kg, this module is lightweight yet durable, making it easy to install in compact control panels. Its RS-422 interface allows for noise-resistant, long-distance serial communication, ensuring stable operation even in electrically noisy industrial environments. Part of the trusted MELSEC-F Series, the FX3U-422-BD benefits from Mitsubishi’s proven reliability, ensuring minimal downtime and consistent performance in manufacturing, process control, and assembly applications.

The Mitsubishi PLC FX3U-422-BD is widely used in applications requiring long-distance, noise-immune serial communication between PLCs, HMIs, inverters, and measurement devices. In manufacturing plants, it connects multiple machines to a central control system for synchronized operations. In packaging lines, it enables high-speed communication between motion controllers and servo drives to maintain precise timing.

Maintenance engineers benefit from the module’s straightforward installation and compatibility with Mitsubishi’s programming tools, reducing setup time and troubleshooting effort. For engineering students, working with the FX3U-422-BD provides valuable hands-on experience in industrial communication protocols and real-world automation integration. Whether used in factory automation, process monitoring, or equipment retrofits, the Mitsubishi PLC FX3U-422-BD delivers dependable connectivity for critical operations.