Manufacturer	Rockwell Automation (Allen-Bradley)
Product Line	ControlLogix
Module Type	High Performance Bridge w/ Embedded Switch
Current Draw at 5.1 Volts DC	1 Ampere
Current Draw at 24 Volts DC	N/A
EtherNet/IP Rate of Communication	10/100 Mbps
Logix Communication Connections	256
TCP/IP Communication Connections	128
Slot Width	1
Ethernet Port	2 Ethernet RJ45 Cat 5
USB Port	USB 1.1 Full-Speed (12 Mbps)
Enclosure Type	None (Open-Style)
Location	Chassis (Any Slot)
Operating Temperature	-25 to 70 °C (-13 to 158 °F)
CIP Unconnected Messages	128 + 128 (backplane + Ethernet)
Packet Rate Capacity (Standard)	10,000 I/O and 2,000 HMI/MSG packets per second
Packet Rate Capacity (with 1756-L7x Controller)	25,000 packets per second
Integrated Motion Support	Up to 8 axes (when used with 1756-L7x ControlLogix Controller)
Compatible Chassis	1756-A4LXT, 1756-A5XT, 1756-A7XT, 1756-A7LXT
Weight	0.50 lbs (0.23 kg)

What is the primary function of the Allen-Bradley 1756-EN2TXT module?

The 1756-EN2TXT is a ControlLogix high-performance bridge module with an embedded switch. It provides EtherNet/IP network communication and control, linking or routing control and information data to support real-time I/O messaging and message exchange.

What are the communication connection limits for the 1756-EN2TXT?

The module supports 256 Logix (CIP) communication connections and 128 TCP/IP communication connections. It also supports 128 + 128 CIP Unconnected Messages (backplane + Ethernet).

What is the network speed and port configuration of the 1756-EN2TXT?

The module features a 10/100 Mbps EtherNet/IP rate of communication with two Ethernet RJ45 Cat 5 ports. It also includes a USB 1.1 Full-Speed (12 Mbps) port.

In what environmental conditions can the 1756-EN2TXT operate?

The 1756-EN2TXT is designed for extreme environment applications and operates in temperatures ranging from -25 to 70 °C (-13 to 158 °F). It is part of the ControlLogix-XT product line.

Which ControlLogix chassis are compatible with the 1756-EN2TXT?

The module is compatible with the 1756-A4LXT, 1756-A5XT, 1756-A7XT, and 1756-A7LXT chassis. It can be installed in any slot of the chassis.

What is the power consumption of the 1756-EN2TXT?

The module draws 1 Ampere at 5.1 Volts DC. It does not draw current at 24 Volts DC.

What packet rate capacity does the 1756-EN2TXT support?

The module has a packet rate capacity of 10,000 I/O and 2,000 HMI/MSG packets per second. When used with a 1756-L7x ControlLogix Controller, the I/O packet rate capacity increases to 25,000 packets per second.

Does the Allen-Bradley 1756-EN2TXT come with a warranty?

Yes. The 1756-EN2TXT is backed by our 24-Month Replace Industrial Warranty, with no rush fees or hidden warranty charges. If a unit fails under normal use within the warranty period, we repair or replace it.

Is this 1756-EN2TXT a genuine Allen-Bradley part?

The 1756-EN2TXT is sourced and verified independently. Replace Industrial, LLC is not a Rockwell Automation Authorized Distributor, and all warranties are provided directly by Replace Industrial.

Is the Allen-Bradley 1756-EN2TXT new or used?

We offer the 1756-EN2TXT in multiple conditions, from unused surplus to professionally reconditioned units. Every option is sourced and verified independently and covered by our 2-year replacement warranty.

What are the key ratings of the 1756-EN2TXT?

The 1756-EN2TXT draws 1 Ampere and operates across -25 to 70 °C (-13 to 158 °F).

What is the Allen-Bradley 1756-EN2TXT?

The 1756-EN2TXT is an Allen-Bradley ControlLogix 1756 High Performance Bridge w/ Embedded Switch.

Allen-Bradley

1756-EN2TXT

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PLCs ControlLogix 1756

The Allen-Bradley 1756-EN2TXT is a ControlLogix high-performance bridge module with an embedded switch, featuring dual 10/100 Mbps EtherNet/IP ports, 256 Logix and 128 TCP/IP connections, and USB 1.1 support for extreme environment applications.

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Overview of Allen-Bradley 1756-EN2TXT

The Allen-Bradley 1756-EN2TXT is a high-performance bridge module with an embedded switch, designed for the ControlLogix-XT product line. It provides EtherNet/IP network communication and control capabilities specifically engineered for extreme environment applications, supporting temperature ranges from -25 to 70 °C (-13 to 158 °F).

As a communication module, the 1756-EN2TXT links or routes control and information data within the ControlLogix chassis, supporting both real-time I/O messaging and general message exchange. It is a critical component for integrating industrial control systems with broader network infrastructure.

Key Features

This module features dual 10/100 Mbps EtherNet/IP ports using RJ45 Cat 5 connectors, allowing for robust network connectivity. It includes a USB 1.1 Full-Speed port (12 Mbps) for configuration and data transfer. The module supports SNMP (password required) and includes socket services for enhanced network management.

The 1756-EN2TXT is designed for extreme environments, making it suitable for harsh industrial conditions. It features an open-style enclosure and is installed directly into the ControlLogix chassis backplane, occupying a single slot width.

Performance and Capacity

The module supports 256 Logix communication connections and 128 TCP/IP communication connections. It also handles 128 + 128 CIP Unconnected Messages (backplane + Ethernet). The network communication rate is 10/100 Mbps.

Packet rate capacity is 10,000 I/O and 2,000 HMI/MSG packets per second. When used with a 1756-L7x ControlLogix Controller, the module can support up to 8 Integrated Motion axes on the EtherNet/IP Network, and the I/O packet rate capacity increases to 25,000 packets per second. The current draw at 5.1 Volts DC is 1 Ampere.

Installation and Compatibility

The 1756-EN2TXT is installed into the ControlLogix chassis backplane in any slot. It is compatible with the 1756-A4LXT, 1756-A5XT, 1756-A7XT, and 1756-A7LXT chassis. The module is part of the 1756 ControlLogix Communication Modules product line.

Available revisions include Series A, B, C, and D. The module is manufactured by Rockwell Automation under the Allen-Bradley brand.

Applications and Industries

The 1756-EN2TXT is ideal for applications requiring Internet/Intranet connections, the inclusion of commercial technologies such as video over IP, and data configuration and collection over a single network. It supports plant management systems and applications with time sensitivity that do not have an established schedule.

Its extreme environment rating makes it suitable for industries where standard communication modules may not perform reliably, such as outdoor installations, harsh manufacturing floors, or remote industrial sites.