2 Year Warranty on All products

Allen-Bradley 1756-EN2TR

Allen-Bradley 1756-En2Tr

Allen-Bradley 1756-EN2TR

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Eligible for Next Day Delivery All Parts Come with 24 Month Warranty New, Refurbished and Repairs Available

We can ship via UPS, FedEx, and USPS. We can ship on customers' accounts as well. International delivery available via UPS and DHL. In stock items typically ship same day.

All products (new, refurbished, and repairs) are covered by the Industrial Automation Company's 2 Year Warranty. Manufacturer's Warranty does not apply.

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We accept all major credit cards. Arrangements can be made for Wire Transfers and PayPal payments.

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Industrial Automation Co. is NOT an Authorized Rockwell Distributor - we have our own unique inventory and sourcing relationships. Review our Reseller notice here.

  • 1756EN2TR
  • 10/100 MBPS

Buying Options
Buying Options

All products are covered by Industrial Automation Co.'s 2-Year Warranty.

Condition SKU Price Warranty Availability Quantity Purchase
Surplus Original Box 1756-EN2TR-FS 2 Year Extended Warranty Call for Availability Call for Availability (877)-727-8757
Quick Repairs and Great Service

Send in your item for a free evaluation and repair quote. Use our RMA form or email a repair request to service@iac.us.com , and we will contact you to assess your situation and offer shipping information.

All products (new, refurbished, and repairs) are covered by the Industrial Automation Company's 2 Year Warranty. Manufacturer's Warranty does not apply.

Understanding the Allen-Bradley 1756-EN2TR

The Allen-Bradley 1756-EN2TR serves as a critical component within the ControlLogix communication module lineup. Fully compliant with CIP safety standards, this dual-port Ethernet/IP communication interface facilitates the concurrent transmission of safety, control data, and diagnostic insights. Engineered with cutting-edge communication chips and physical media, the module is a dependable solution for your industrial automation needs.

Allen-Bradley 1756-EN2TR

AB 1756-EN2TR Key Benefits and Features

The AB 1756-EN2TR offers a wide range of features and benefits, such as:

  • Dual-port Ethernet/IP interface
  • 128 TCP/IP connections
  • Handles up to 8 axis
  • Ring and star topologies
  • Easy configuration and installation
  • High-performance, reliable communications
  • Device level ring (DLR) network
  • Explicitly secured mode
  • Electronic keying
  • Compatibility with PRP (parallel redundancy protocol)

Technical Specifications for 1756-EN2TR

The 1756-EN2TR by Allen-Bradley delivers 10 to 100 Mbps Ethernet/IP communication rates and draws 1 A current at 5.1V DC. Its maximum power dissipation is 5.1 W, and its thermal dissipation is 17.4 BTU/hr. Other specifications include:

  • Backplane current (5 volts): 1 amp
  • Backplane current (24 volts): 3 milliamps
  • Operating temperature: 32 to 140 degrees Fahrenheit
  • Power consumption: 5.1 watts
  • Current draw: 1.2 amp
  • Insulation voltage: 30 volts continuous


The 1756-EN2TR is ideal for a wide range of industrial automation and control operations. It provides robust support for general messaging, real-time I/O exchanges, and data sharing for applications like:

  • Real-time control
  • Time synchronization
  • Motion control

Installation and Configuration

Installation and configuration of the 1756-EN2TR is simple. You can use the Allen-Bradley BOOTP-DHCP tool, which is used for a broad array of AB Ethernet devices, for setting the IP address or completing the initial configuration. This software sets The predetermined IP address to the device's MAC address. Following the specification of an IP address, more operational modifications are made using Studio 5000 Logix Designer or RSLogix 5000.

Frequently Asked Questions About the 1756-EN2TR

As a trusted provider of industrial replacement parts, Industrial Automation Co. is well-positioned to answer your questions about the 1756-EN2TR. Read on for the information you need, and be sure to contact us for additional details.

What Is the Function of the EN2TR?

1756-EN2TR functions include support for distributed I/O, messaging and tags.

What Topologies Does the 1756-EN2TR Enable?

The module enables star and ring topologies with approved partner devices, including CompactLogix, FLEX I/O, ControlLogix, and POINT I/O.

What Other Devices Does This Module Work With?

Other controllers from Allen-Bradley, such as the PLC-5, MicroLogix, and SLC 500 controllers, can also use this module to implement messages. Additionally, it can communicate with third-party products, supervisory control and data acquisition (SCADA) devices, and human-machine interfaces (HMI). It may connect devices, converters, and gateways from other companies and have partner modules.

Does This Device Require Communication Adapters?

No. The 1756-EN2TR enables integrated Ethernet connection of computers and programming workstations, eliminating the need for expensive communication adapters to connect to the controller.

What Other ControlLogix Devices Do You Offer?

We carry many ControlLogix devices, including the Allen-Bradley 1756-L61 and the 1756-PB75R.

What Shipping Options Are Available?

We can ship via UPS, FedEx, and USPS. We also can ship on customers' accounts. International delivery is available via DHL and UPS.

When Will My Order Ship?

In-stock items typically ship on the same day.

Superior Service & Quick Turnarounds

Order a 1756-EN2TR Today From Industrial Automation Co.

You can't afford to compromise when it comes to the heart of your industrial automation system. The Allen-Bradley 1756-EN2TR offers unparalleled performance, rock-solid safety features, and the versatility you need to excel in today's fast-paced, demanding industrial environment. Purchase yours today.

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ManufacturerIndustrial Automation
Part Number/Catalog No.1756-EN2TR
Module TypeEthernet Communication Module
Backplane Current (5Volts)1 amp
Ethernet-IP Communication Rate10/100 Mbps
Backplane Current (24 Volts)3 milliamps
Integrated PortsTwo (2) RJ45; One (1) USB 1.1
Power Consumption 5.1 Watts
Current Draw1.2 Amp
Insulation Voltage30 Volts Continuous
LocationChassis (any slot)
Slot Width1
Operating Temperature32 to 140 degrees Fahrenheit (0 to 60 degrees Celsius)
Current Rating1.2 Amps
Power Dissipation5.1 W
Thermal Dissipation21.28 BTU per hour
Configuration SoftwareRSLogix 5000; Studio 5000 Logix Designer