2 Year Warranty on All products

Allen-Bradley 1756-EN4TR

Allen-Bradley 1756-En4Tr

Allen-Bradley 1756-EN4TR

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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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Allen-Bradley 1756-EN4TR

The 1756-EN4TR stands as a sophisticated EtherNet/IP communication module meticulously designed for seamless integration within the Allen-Bradley ControlLogix series of programmable automation controllers (PACs).

Technical Details:

Equipped with dual Ethernet ports, the 1756-EN4TR introduces a level of flexibility in network configuration, allowing for versatile setups. The inclusion of two ports also brings redundancy to the system, enhancing overall reliability by providing backup communication paths in case of network issues.

The module supports communication over 10M, 100M, and 1G twisted pair Ethernet networks, offering versatility in data transfer speeds. This adaptability ensures that the module can be effectively employed in diverse industrial environments where specific speed requirements may vary.

With a capacity to manage up to 512 TCP connections, the 1756-EN4TR employs the reliable Transmission Control Protocol (TCP) for secure and efficient data transmission. This is particularly crucial in industrial settings where data integrity and reliability are paramount for the proper functioning of automation processes.

The device exhibits different current draw characteristics depending on the applied voltage. At 5.1 volts direct current (V DC), the device consumes a current of 1.2 amperes (A). This indicates a relatively higher power demand when operating at this lower voltage level.

In contrast, when the device is powered at 24 volts direct current (V DC), the current draw is significantly lower, measuring at 3 milliamperes (mA). Understanding these current draw specifications at different voltage levels is essential for system design and power management. The power dissipation of the device is specified as 6.12 watts (W).

Packet Rate Capacity:

The 1756-EN4TR controller module boasts impressive packet rate capacities catering to different security configurations. Without CIP (Common Industrial Protocol) security, it can handle up to 50,000 packets per second, showcasing its robust performance in scenarios prioritizing speed and efficiency.

When CIP security with integrity is enabled, the packet rate capacity is reduced to 25,000 packets per second, emphasizing the module's commitment to maintaining data integrity in secure communication environments.

For applications requiring both integrity and confidentiality, the module supports a packet rate of 15,000 packets per second, demonstrating its capability to uphold both data integrity and privacy in sensitive industrial settings.


This controller module finds versatile applications across industrial landscapes. It excels in scenarios where it controls I/O modules and drives, serving as a key component in automation processes.

Additionally, the module functions as an adapter for I/O on remote Ethernet/IP links, facilitating efficient communication between distributed components.

Its compatibility extends to interacting with Human-Machine Interfaces (HMIs) and other Ethernet/IP devices, contributing to the seamless integration of various elements within an industrial network.

Furthermore, the module proves invaluable in applications involving the bridging of Ethernet/IP links, allowing the routing of messages to devices located on different networks.

Frequently Asked Questions:

What is the thermal dissipation of the 1756-EN4TR device?

The device 1756-EN4TR has a thermal dissipation of 20.9 BTU/hr, indicating the amount of heat generated during operation. This value guides the implementation of effective cooling measures to maintain optimal performance.

What is the vibration tolerance of the 1756-EN4TR device during operation according to IEC 60068-2-6?

The device 1756-EN4TR can withstand vibrations of up to 2 g in the frequency range of 10 to 500 Hz, as per the IEC 60068-2-6 standard (Test Fc).

What is the shock resistance of the 1756-EN4TR device in operational conditions according to IEC 60068-2-27?

The device 1756-EN4TR exhibits a shock resistance of 30 g, as specified by the IEC 60068-2-27 standard (Test Ea) for unpackaged shock conditions during operation.

Product Specifications Table

Attribute Specifications
Series ControlLogix
Power Dissipation 6.12 W
Voltage 5-24 V DC
Communication Interface ControlLogix backplane communication
Communication Speeds 10 Mbps, 100 Mbps, 1 Gbps
Software Compatibility Studio 5000 Logix Designer
Ambient Temperature Range 0 to 60 degree celsius
Control Method programmable logic control
Input/Output Frequency Range 50 Hz/60 Hz
Mounting Type chassis mount

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-EN4TR-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.