QJ71BR11 Mitsubishi Universal Model Redundant Power Supply Module

QJ71BR11 Mitsubishi Universal model Redundant Power Supply Module

QJ71BR11 Overview​​

The QJ71BR11 is a MELSECNET/H network module manufactured by Mitsubishi Electric, designed for the Q series PLC systems. It facilitates high-speed data communication between programmable logic controllers (PLCs) and remote I/O stations, supporting both PLC-to-PLC networks (control/standard stations) and remote I/O networks (remote master stations). This module utilizes cost-effective coaxial cables for reliable industrial automation applications, enabling seamless integration into large-scale control systems

​​QJ71BR11 Key Features​​

1. 1.

   ​​High-Speed Communication​​: Operates at a transmission speed of ​​10 Mbps​​, ensuring efficient data exchange for real-time control applications

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2. 2.

   ​​Dual Network Support​​: Functions in both ​​PLC-to-PLC networks​​ (control/standard stations) and ​​remote I/O networks​​ (remote master stations), enhancing system flexibility

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3. 3.

   ​​Coaxial Cable Connectivity​​: Uses ​​75Ω coaxial cables​​ (3C-2V/5C-2V types), reducing wiring costs compared to optical fiber systems while maintaining noise resistance

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4. 4.

   ​​Scalable Architecture​​: Supports up to ​​32 stations​​ per network (1 master station + 31 standard stations) and allows ​​4 modules​​ to be installed per CPU, accommodating expansive industrial networks

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5. 5.

   ​​Large Data Capacity​​: Handles substantial I/O points, including ​​8,192 LX/LY points​​ (MELSECNET/10) or ​​16,384 LB/LW points​​ (MELSECNET/10H), with a maximum data transfer capacity of ​​2,000 bytes​​ per station for general and low-speed cyclic communication

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​​QJ71BR11 Material and Applications​​

The module employs industrial-grade electronic components and connectors compatible with ​​75Ω coaxial cables​​ (3C-2V/5C-2V). Its housing is designed for durability in harsh environments, typical of factory automation systems. Primary applications include:

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  ​​Factory Automation​​: Integrating PLCs and remote I/O devices in manufacturing lines.

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  ​​Process Control​​: Enabling real-time data exchange between control systems in chemical, electronic, and automotive industries

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  ​​Energy Management​​: Monitoring and controlling distributed I/O points in utility systems

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​QJ71BR11 ​Key Parameters​​

The following table summarizes the critical technical specifications of the QJ71BR11 module: