Mitsubishi QJ71MT91 Communication Module

Description:

The Mitsubishi QJ71MT91 Communication Module is used in industrial automation systems to enable CC-Link network communication between PLCs and field devices. Commonly installed in manufacturing lines, conveyor systems, and distributed control systems requiring high-speed data exchange and reliable network connectivity. Maintenance teams, OEMs, and system integrators use this part for system expansion, network integration, and replacement of communication modules. 

Applications:

The Mitsubishi QJ71MT91 communication module is widely used in automated production environments where seamless communication between controllers and devices is critical. It is typically applied in assembly lines, material handling systems, packaging equipment, and process automation to ensure real-time data transfer, coordinated control, and efficient system operation.

Technical Specifications:

• Manufacturer Part Number (MPN): QJ71MT91
• Brand: Mitsubishi Electric
• Product Type: PLC Communication Module
• Series: MELSEC-Q Series
• Network Type: CC-Link Master/Local Station
• Transmission Speed: Up to 10 Mbps
• Number of Stations: Up to 64 Stations (depending on configuration)
• Communication Method: Token Passing
• Interface: CC-Link Dedicated Port
• Power Supply: Supplied from PLC Base Unit
• Mounting Type: Rack Mount (Q Series Base Unit)
• Indicators: LED Status Indicators for Network and Module Status
• Compatibility: Mitsubishi MELSEC-Q Series PLC Systems

Common Replacements:

• Mitsubishi QJ71MT91D Communication Module
• Mitsubishi QJ71E71-100 Ethernet Module
• Mitsubishi QJ71BR11 CC-Link Remote I/O Module