Mitsubishi RJ71GP21-SX - PLC Network Communication Module

The RJ71GP21-SX module belongs to the trusted MELSEC iQ-R Series and functions as a Master/Local Station within a CC-Link IE Control Network. Built for high-speed, stable communication, it ensures accurate data exchange in real-time industrial control environments. Its compact structure—with a depth of 110 mm, width of 27.8 mm, and height of 106 mm—allows easy installation even in dense control cabinets. Weighing only 0.18 kg, the unit supports flexible mounting and fast maintenance operations in space-constrained panels.

This communication module is designed to meet the demanding performance requirements of modern automation systems. With high reliability and rapid response capability, the RJ71GP21-SX delivers precise synchronization between devices, improving overall efficiency. It supports robust diagnostics and ensures stable operation, even under harsh industrial conditions. Manufactured by Mitsubishi Electric, a global leader in factory automation, the product upholds global quality standards and is compatible with a wide range of PLCs within the Mitsubishi ecosystem. Engineers across India trust this model for mission-critical applications in production lines and automated machinery.

To review complete specifications and product manuals, visit the official Mitsubishi page for RJ71GP21-SX. This compact and powerful communication module ensures that every byte of your automation data moves reliably—because in industrial networks, precision matters.

The RJ71GP21-SX is widely used in manufacturing automation, automated conveyor systems, and process control environments where multiple PLCs or intelligent devices need synchronized communication. Maintenance engineers rely on this model to simplify complex data exchanges across CC-Link IE networks, making diagnostics faster and minimizing downtime. In production lines, this module ensures consistent and accurate signal transmission—critical for motion control and feedback loops.

For factories upgrading to smart automation, the RJ71GP21-SX PLC Network Communication Module offers the flexibility to scale. Whether you're integrating new robots, packaging systems, or inspection equipment, this module handles real-time commands and data sharing efficiently. Its interoperability with other MELSEC iQ-R Series components helps reduce setup time and improves system stability.

From assembly lines in Chennai to pharma units in Ahmedabad, Indian industries are adopting this RJ71GP21-SX module to meet increasing demands for speed, safety, and control. Backed by Mitsubishi’s engineering excellence, it’s more than just a module—it’s a key enabler in building a smarter, more connected factory floor.