QJ71MB91 Mitsubishi Universal Model Redundant Power Supply Module 100 To 240 V AC

QJ71MB91 Mitsubishi Universal model Redundant Power Supply Module

• Dual Protocol Support:​ Uniquely supports both MODBUS RTU (via RS-485/RS-422) and MODBUS/TCP (via built-in Ethernet port) within a single module, simplifying system architecture and reducing hardware count.
• Master/Slave Functionality:​ Can be configured to operate as a MODBUS master (client) to read/write data from slave devices, or as a MODBUS slave (server) to respond to requests from a master device (e.g., SCADA systems).
• Easy Configuration:​ Programming and configuration are simplified through GX Works3 engineering software using dedicated configuration tools and predefined function blocks, minimizing ladder logic for communication.
• Large Device Connectivity:​ Supports connection to multiple MODBUS slave devices, allowing centralized data acquisition and control from numerous field devices.
• Seamless PLC Integration:​ Data exchange with the PLC CPU is handled via automatic buffer memory (BFM) assignment, enabling easy data mapping between MODBUS device registers and the PLC's internal devices (D, M, etc.).

• Material:​ The module casing is made of robust, flame-retardant plastic (ABS/Polycarbonate blend). The circuit board uses a glass epoxy substrate, and connectors are made of plated copper alloy for reliable contact. The communication ports (RJ45 and terminal block) are industry-standard.
• Primary Applications:​ Used as a communication gateway in diverse automation systems requiring integration with third-party MODBUS devices.
  • Building Management Systems (BMS) for HVAC, lighting, and power monitoring.
  • Water/Wastewater Treatment plants for integrating pumps, flow meters, and analyzers.
  • Factory automation lines incorporating equipment from various manufacturers.
  • Energy management systems for collecting data from power monitors and inverters.