Mitsubishi QJ71MB91

The Mitsubishi QJ71MB91 is a Modbus master/slave communication module for the MELSEC-Q Series PLCs. It supports both RS-485 and RS-422 serial interfaces, allowing flexible connection with various Modbus-compatible devices. This module is ideal for industrial environments requiring robust and reliable data exchange over Modbus protocols.

◆ Key Features:

• Supports Modbus RTU and ASCII

• Operates as master or slave

• RS-485/RS-422 communication interfaces

• Easy parameter setting via GX Developer/GX Works

• High-speed data exchange

• DIN rail or Q Series rack mountable

• LED indicators for diagnostics

• Ideal for integrating third-party Modbus devices

◆ Technical Specifications:

• Part Number: QJ71MB91

• Manufacturer: Mitsubishi Electric

• Series: MELSEC-Q

• Protocols: Modbus RTU, Modbus ASCII

• Communication Ports: RS-485/RS-422

• Transmission Speed: Up to 115.2 kbps

• Max Stations: 32 (RS-485 multipoint)

• Operating Modes: Master/Slave

• Power Supply: From base unit

• Operating Temperature: 0 °C to +55 °C

• Mounting: Q Series base rack

• Configuration: Software-based (GX Developer/GX Works)

◆ Applications:

• Third-party device integration

• Remote terminal unit (RTU) communications

• Building automation systems

• Factory floor device control

• Distributed sensor/actuator management

◆ Why Choose the QJ71MB91:

• Enables Modbus network integration within Q Series PLCs

• Supports versatile serial communication options

• Simple configuration and diagnostics

• Reliable Mitsubishi industrial-grade quality

• Reduces wiring with RS-485 multi-drop support

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. FLATECK Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply