A-B 1756-EN2TR Redundant EtherNet/IP Module

Allen‑Bradley 1756‑EN2TR

ControlLogix Redundant EtherNet/IP Module (Dual‑Port DLR)

Specifications

• Ports: 2 × RJ45 (10/100 Mbps), 1 × USB 1.1 (config/diagnostics)
• Protocol: EtherNet/IP (CIP), TCP/IP, UDP, HTTP, SNMP, DLR (Device Level Ring)
• Redundancy: DLR ring topology, PRP/HSR support, fault‑tolerant communication
• Max Connections: 128 TCP, 256 CIP (Logix)
• Power Draw: 1 A @ 5.1 VDC; 3 mA @ 24 VDC
• Power Dissipation: 5.1 W (17.4 BTU/h)
• Isolation: 30 V continuous, basic insulation (Ethernet ↔ backplane)
• Operating Temp: 0 to 60°C (32 to 140°F)
• Dimensions (H×W×D): 53.3 × 237.5 × 182.9 mm
• Weight: ~0.45 kg (1.0 lb)
• Certifications: UL, CE, CSA, Class I Div 2
• Status: Active (in production)

Features

• Dual‑port redundancy: Two RJ45 ports for DLR ring or dual‑homed redundancy; recovers in <10 ms on cable fault
• High‑speed 10/100 Mbps: Real‑time I/O, motion, HMI, and SCADA communication
• Large connection capacity: 256 CIP connections for complex networks
• USB port: Easy configuration, firmware updates, and diagnostics
• Hot‑swap (RIUP): Replace module without system shutdown
• CIP Sync: IEEE 1588 precision time protocol for synchronized motion/control
• Industrial grade: High noise immunity, vibration resistance, and wide‑temperature operation