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Description

The Allen-Bradley 1756-EN2TXT is a high-performance communication bridge module designed for the ControlLogix platform. Engineered specifically for the Logix-XT (Extreme Environment) series, this module facilitates robust EtherNet/IP communication in demanding industrial conditions where standard modules may be susceptible to environmental stress. It serves as a vital link for data exchange between controllers and network devices, ensuring reliable connectivity in harsh operational settings.

Features

  • Designed for extreme environment operation (Logix-XT).
  • EtherNet/IP communication interface with 10/100 Mbps auto-negotiation.
  • Supports up to 128 TCP/IP connections for complex network architectures.
  • Seamless integration with the ControlLogix backplane.
  • Optimized for high-availability communication in distributed control systems.

Applications

This module is intended for use in control systems requiring extended temperature ranges or protection against harsh environmental factors. Typical applications include remote I/O communication, controller-to-controller messaging, and data bridging in heavy industrial sectors such as oil and gas, chemical processing, and outdoor infrastructure control.

Technical Specifications

Manufacturer Allen-Bradley
Model Number 1756-EN2TXT
Module Type EtherNet/IP Bridge
Series ControlLogix XT
Connection Capacity 128 TCP/IP Connections
Network Speed 10/100 Mbps
Tariff Code 8537101190

Installation Guidelines

  • Ensure the ControlLogix chassis is powered down before inserting or removing the module.
  • Verify that the module is fully seated in the chassis slot to maintain proper backplane connection.
  • Use industrial-grade shielded twisted-pair cabling to minimize EMI interference in noisy electrical environments.
  • Maintain proper ventilation within the cabinet to stay within operating temperature limits.
  • Handle with care to prevent electrostatic discharge (ESD) damage to the internal circuitry.

FAQ

What does the 'XT' designation mean in 1756-EN2TXT?
The XT suffix indicates that the module is part of the Allen-Bradley Extreme Environment series, built with specialized conformal coating and components to withstand harsher environmental conditions than standard modules.

Is this module compatible with standard ControlLogix chassis?
Yes, the 1756-EN2TXT is designed to fit into standard 1756 ControlLogix chassis, providing the same functionality as standard Ethernet bridges while adding environmental hardening.

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