Mitsubishi QX71 - Programmable Logic Controller

The Mitsubishi QX71 PLC is a high-density DC input module designed to capture 32 digital signals with a rated input voltage of 5/12 VDC, offering engineers a reliable and space-efficient solution for logic-level signal monitoring. Supporting both plus and minus common logic, this module enables seamless integration with a wide variety of sensor and control devices in modern PLC systems. As part of the MELSEC-Q Series, it ensures compatibility with Mitsubishi CPUs and software platforms such as GX Works and GX Developer.

The QX71 features a slim form factor with a width of 27.4 mm, height of 98 mm, and depth of 90 mm, making it ideal for compact cabinet designs. Despite its high input count, the module remains lightweight at only 0.12 kg and operates efficiently with an internal current consumption of just 0.07 A. The connector-type wiring simplifies installation and improves reliability by reducing wiring errors in dense I/O environments. It occupies 32 I/O points and delivers consistent signal capture performance in time-sensitive applications.

Trusted across industries including electronics manufacturing, robotics, and process automation, the Mitsubishi QX71 is chosen for its speed, signal stability, and compatibility with low-voltage industrial control systems. Backed by Mitsubishi Electric’s global support and field-tested durability, this input module offers a balance of performance and ease of integration.

The QX71 PLC module is ideal for applications that require precise monitoring of low-voltage digital inputs. Common use cases include capturing signals from photoelectric sensors, push buttons, rotary encoders, and logic-level switches in automated test benches, semiconductor equipment, and compact robotic systems.

Its support for both 5V and 12V DC inputs makes the Mitsubishi QX71 especially useful in environments where multiple device types are used within a single panel. The module ensures fast and stable signal recognition, essential for applications where timing and responsiveness are critical—such as indexing mechanisms or high-speed inspection stations.

Whether you're building a new automation system or expanding a MELSEC-Q control panel, the Mitsubishi QX71 PLC provides the reliability, integration flexibility, and signal precision that modern industrial environments demand.