Allen-Bradley 1756-EN2TR EtherNet/IP Communication Module 1756EN2TR

Description:

The Allen‑Bradley 1756‑EN2TR EtherNet/IP communication module is used in industrial automation systems to enable high‑speed Ethernet/IP networking for ControlLogix PLC racks. Commonly installed in 1756 ControlLogix chassis to provide communication between PLCs, HMIs, and other networked devices. Maintenance teams and system integrators use this module for network integration, distributed system expansion, and replacing legacy communication interfaces.

Applications:

The Allen-Bradley 1756‑EN2TR module is widely used in automation environments requiring reliable EtherNet/IP communication and real‑time data exchange. It is commonly found in manufacturing plants, material handling systems, packaging machinery, and process control installations where networked PLCs, remote I/O, and supervisory systems must communicate over industrial Ethernet.

Technical Specifications:

• Model: 1756‑EN2TR
• Function: EtherNet/IP communication interface for ControlLogix PLCs
• Supported protocols: EtherNet/IP, TCP/IP, UDP/IP
• Ethernet ports: Dual RJ‑45 10/100/1000 Mbps
• Redundant network support: Yes (dual port for ring/redundancy)
• Indicators: Link, activity, status LEDs
• Mounting: 1756 ControlLogix chassis slot
• Compatibility: Allen‑Bradley ControlLogix PLC family
• Communication functions: I/O messaging, explicit messaging, CIP communications
• Power: Backplane supplied
• Designed for: Industrial Ethernet networking

Common Replacements:

• Allen‑Bradley 1756‑EN2T
• Allen‑Bradley 1756‑EN4TR
• CompactLogix EtherNet/IP communication module