The QJ71MB91 is a Modbus/TCP interface module for MELSEC-Q series PLCs manufactured by Mitsubishi Electric.
It enables Ethernet communication between the PLC and third-party devices (such as inverters and temperature controllers) that support the Modbus protocol, supports master and slave functions, and is suitable for data exchange in industrial automation.
100% Original & Authentic In-Stock & Fast Shipping Expert Technical Support Reliable Warranty
Technical Specifications
| Brand |
Mitsubishi Electric |
| Series |
MELSEC-Q SERIES |
| Type |
MASTER/LOCAL STATION |
| Network Interface |
MODBUS RTU/MODBUS ASCII |
Conformity & Certifications
| CE |
COMPLIANT |
| UL / cUL |
COMPLIANT |
| UKCA |
COMPLIANT |
| Shipping Approvals |
ABS, BV, DNV GL, KR, LR, NK, RINA |
| EAC |
NON-COMPLIANT |
Why Source This Module From Us?
- Genuine Guarantee: Guaranteed original Mitsubishi Electric product. We say no to counterfeits or refurbished parts.
- Ready-to-Ship Inventory: In-stock PLC modules can be dispatched immediately to reduce industrial downtime.
- Technical Support: Our engineers assist with PLC model verification and wiring diagrams.
- Competitive Pricing: Strong supply chain ensures competitive prices and bulk order discounts.
Applications
- Multi-brand Equipment Integration and Hybrid Control System: This is the most typical application scenario for the QJ71MB91. In industrial automation, equipment from different brands often coexist.
- Distributed I/O Expansion: When the number of local I/O points is insufficient, or when I/O modules need to be placed remotely at locations far from the PLC, the QJ71MB91 can act as a bridge.
- Process Control and Data Acquisition (SCADA): In situations requiring centralized monitoring of a large number of analog or status variables.
- Retrofitting and Reusing Existing Equipment: In factory upgrade and renovation projects, retaining existing, older equipment is a common requirement.
Engineer's Tip: The QJ71MB91 is the preferred solution for connecting Q-series PLCs to non-Mitsubishi intelligent devices. Its core application areas are industrial automation projects that require low-cost, high-reliability integration of inverters, instruments, remote I/O, or other third-party devices supporting the Modbus RTU protocol.
