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Allen Bradley 1756-EN3TR ControlLogix EtherNet/IP Bridge Module - 2-Port

Allen Bradley 1756-EN3TR ControlLogix 2-Port EtherNet/IP Bridge Module

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ManufacturerAllen Bradley

Part number1756-EN3TR

Manufacturer Allen Bradley

Part Number 1756-EN3TR

Product Type EtherNet/IP Communication Module

Series ControlLogix

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Dual-port Ethernet with embedded switch Supports DLR topology USB port for configuration High connection capacity EtherNet/IP communication ControlLogix chassis mounting

Product description

The Allen-Bradley 1756-EN3TR is a ControlLogix communication module that functions as a high-performance EtherNet/IP bridge. It features two RJ45 Ethernet ports with embedded switch technology, supporting 10/100 Mbps transfer rates and various topologies including linear, star, and Device Level Ring (DLR). An additional USB 2.0 port is included for configuration and diagnostics.

This module is designed for seamless integration into ControlLogix systems, enabling robust EtherNet/IP networking for local or remote chassis installations. It supports up to 128 CIP motion axes, 128 TCP/IP connections, and 256 Logix connections, making it ideal for complex automation and motion control applications across industries like manufacturing, automotive, and food & beverage.

Stanlo Automation offers the Allen-Bradley 1756-EN3TR, providing reliable and efficient networking solutions for your industrial automation needs. As a veteran-owned distributor, we are committed to delivering quality parts and exceptional customer service.

Technical specifications

Manufacturer	Allen Bradley
Part Number	1756-EN3TR
Product Type	EtherNet/IP Communication Module
Series	ControlLogix
Ports	2 x RJ45 Ethernet (10/100 Mbps), 1 x USB
Supported Topologies	Linear, Star, Device Level Ring (DLR)
Max TCP Connections	128
Max CIP Connections	256
Motion Axes Support	Up to 128 CIP
Power Dissipation	5.1 W

Common applications

EtherNet/IP Networking

Motion Control

Distributed I/O

Industrial Automation

Manufacturing

Food & Beverage

Automotive

Compatible systems

ControlLogix Controllers ControlLogix Chassis EtherNet/IP Networks

Also known as

Allen Bradley ControlLogix Ethernet Module 1756-EN3TR Ethernet Bridge ControlLogix Communication Bridge

Replaces / compatible with

The 1756-EN3TR replaces older EtherNet communication modules in ControlLogix systems, offering enhanced performance and features like DLR support. It is compatible with various ControlLogix controllers and chassis.

Technical note

Expert tip

The embedded switch in the 1756-EN3TR allows for seamless implementation of Device Level Ring (DLR) topology, enhancing network redundancy and uptime.

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Frequently asked questions

What communication protocols does the Allen-Bradley 1756-EN3TR module support?

The Allen-Bradley 1756-EN3TR module primarily supports EtherNet/IP protocol. It also supports TCP/IP for network communication and can be configured and diagnosed via its USB port.