Mitsubishi QJ71E71-100 Ethernet Module QJ71E71100

Description:

The Mitsubishi QJ71E71‑100 Ethernet module is used in industrial automation systems to provide Ethernet communication and networking capabilities for programmable logic controllers (PLCs). Commonly installed in Mitsubishi Q‑Series PLC racks and control cabinets to enable high‑speed data exchange, remote access, and connectivity to HMIs and SCADA systems. Maintenance teams and system integrators use this module for network integration, system expansions, and replacement of legacy communication interfaces.

Applications:

The Mitsubishi QJ71E71‑100 module is widely used in factory automation environments requiring reliable Ethernet connectivity between PLCs, operator interfaces, and supervisory systems. It is commonly found in production lines, packaging machinery, material handling systems, and process automation where real‑time data transfer, remote monitoring, and integration with higher‑level systems such as MES or SCADA are essential to maintain efficient operations.

Technical Specifications:

• Model: QJ71E71‑100
• Function: PLC Ethernet communication interface module
• Supported protocols: TCP/IP, UDP, Mitsubishi MC‑Protocol over Ethernet
• Ethernet port: RJ‑45 10/100 Mbps
• Network speed: 10/100 Mbps auto‑negotiation
• Communication distance: Standard Ethernet cabling (Cat5/6)
• Diagnostics: LED indicators for Link/Activity/Status
• Mounting: PLC rack slot mount
• Compatibility: Mitsubishi Q‑Series PLC systems
• Power: Supplied via PLC backplane
• Application: PLC‑to‑PLC, PLC‑to‑HMI, PLC‑to‑SCADA networking
• Designed for: Industrial automation networking

Common Replacements:

• Mitsubishi QJ71E71‑100‑K
• Mitsubishi QJ71E71‑80
• Omron CS1W‑ETN21