The Mitsubishi RJ71EN71 is a high-performance Ethernet interface module designed for the MELSEC iQ-R series programmable logic controllers (PLCs). This module facilitates seamless and high-speed communication between the PLC and other network devices, such as PCs, HMIs, and other controllers over an Ethernet network. It supports various standard protocols including TCP/IP and UDP/IP, enabling flexible system configurations and robust data exchange for a wide range of industrial automation applications. Its integration into the iQ-R platform ensures reliable performance, easy setup, and advanced diagnostic capabilities, making it an essential component for building sophisticated and interconnected control systems.