Description
Allen-Bradley 1756-EN2TXT Product Description
Product Overview
Allen-Bradley 1756-EN2TXT is an industrial-grade EtherNet/IP communication module developed by Rockwell Automation for the ControlLogix 1756 automation platform. As a member of the Allen-Bradley ControlLogix communication module family, Allen-Bradley 1756-EN2TXT is designed to provide high-performance network connectivity between ControlLogix controllers, remote I/O systems, HMIs, SCADA platforms, industrial devices, and enterprise-level automation networks. The module extends the communication capability of ControlLogix systems by providing reliable EtherNet/IP connectivity with enhanced environmental protection for demanding industrial applications.
The Allen-Bradley 1756-EN2TXT is a conformal-coated version of the standard 1756-EN2T EtherNet/IP communication module, designed for operation in harsh environments where exposure to moisture, dust, corrosive gases, chemicals, and temperature variations may occur. The protective coating improves resistance against environmental contaminants, making Allen-Bradley 1756-EN2TXT suitable for applications in oil and gas, marine, chemical processing, wastewater treatment, and outdoor industrial installations.
With support for EtherNet/IP messaging, I/O communication, produced and consumed tags, and advanced network services, Allen-Bradley 1756-EN2TXT provides fast and reliable data exchange within integrated automation architectures. It seamlessly integrates with ControlLogix controllers and Studio 5000 Logix Designer software, enabling efficient system configuration, diagnostics, and maintenance. The module is widely used in modern industrial Ethernet networks requiring high availability, secure communication, and long-term operational reliability.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 1756-EN2TXT |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Series | ControlLogix 1756 Communication Modules |
| Product Type | EtherNet/IP Communication Module |
| Network Protocol | EtherNet/IP |
| Communication Speed | 10/100 Mbps Ethernet |
| Ethernet Port | 1 × RJ45 Ethernet port |
| Backplane Communication | ControlLogix chassis backplane |
| Supported Messaging | CIP Messaging, Produced/Consumed Tags, Explicit Messaging |
| I/O Connections | Supports EtherNet/IP I/O communication |
| Software Compatibility | Studio 5000 Logix Designer |
| Controller Compatibility | ControlLogix PAC Systems |
| Environmental Protection | Conformal coating for harsh environments |
| Operating Temperature | -25°C to +70°C |
| Humidity Resistance | 5% to 95% RH non-condensing |
| Mounting Method | ControlLogix chassis slot mounting |
| Power Consumption | Approx. 5.1 W |
| Backplane Current | Approx. 1000 mA @ 5.1 VDC |
Main Features and Advantages
Industrial Ethernet communication capability:
Allen-Bradley 1756-EN2TXT provides high-speed EtherNet/IP connectivity for ControlLogix automation systems. It enables seamless communication between controllers, remote I/O modules, drives, intelligent field devices, and supervisory systems. By using the Common Industrial Protocol (CIP), Allen-Bradley 1756-EN2TXT supports efficient real-time data exchange required for modern automation applications.
1756-EN2TXT
Enhanced environmental durability:
A key advantage of Allen-Bradley 1756-EN2TXT is its conformal coating protection. Compared with standard communication modules, this version provides improved resistance against humidity, condensation, airborne contaminants, and corrosive industrial environments. This makes it particularly suitable for applications where standard electronic modules may experience reduced reliability.
High-performance ControlLogix integration:
Designed specifically for the ControlLogix platform, Allen-Bradley 1756-EN2TXT integrates directly into ControlLogix chassis architectures. Engineers can configure network parameters, monitor communication status, and troubleshoot system performance through Studio 5000 Logix Designer, reducing commissioning time and simplifying maintenance.
Reliable network diagnostics:
Allen-Bradley 1756-EN2TXT provides advanced diagnostic capabilities, including network status monitoring, module health indicators, and communication fault information. These features help maintenance teams quickly identify network issues and improve system uptime.
Flexible industrial networking solution:
The module supports a wide range of EtherNet/IP topologies, allowing integration into distributed control systems, machine automation networks, and plant-wide Ethernet architectures. Allen-Bradley 1756-EN2TXT provides a scalable communication solution for both new installations and system upgrades.
Long-term operational reliability:
Built according to Rockwell Automation industrial standards, Allen-Bradley 1756-EN2TXT delivers stable performance in demanding environments. Its rugged construction and proven communication technology help reduce downtime and improve the availability of critical automation systems.
Application Areas
Allen-Bradley 1756-EN2TXT is widely used in industrial automation systems that require reliable EtherNet/IP communication under harsh operating conditions. It is commonly installed in ControlLogix-based control systems across industries where environmental protection and network stability are essential.
In oil and gas facilities, Allen-Bradley 1756-EN2TXT provides dependable communication between controllers, remote I/O systems, process equipment, and supervisory control platforms. Its conformal-coated design allows operation in areas exposed to humidity, chemicals, and challenging environmental conditions.
In water and wastewater treatment plants, Allen-Bradley 1756-EN2TXT supports communication between PLC systems, pump control equipment, instrumentation, and SCADA networks. The module helps maintain reliable data transmission for continuous process monitoring and control.
In marine, offshore, and outdoor industrial applications, Allen-Bradley 1756-EN2TXT offers enhanced resistance against environmental stress compared with standard Ethernet modules. It is suitable for applications where equipment may encounter vibration, temperature fluctuations, moisture, or airborne contaminants.
In manufacturing plants, automotive facilities, and process industries, Allen-Bradley 1756-EN2TXT enables integration of ControlLogix systems with drives, robots, HMIs, and intelligent automation devices. It provides a dependable communication foundation for modern industrial Ethernet architectures.
Related Products
- Allen-Bradley 1756-EN2T: Standard EtherNet/IP communication module with similar functionality without conformal coating protection.
- Allen-Bradley 1756-EN2TR: EtherNet/IP module with dual Ethernet ports and Device Level Ring (DLR) support.
- Allen-Bradley 1756-EN3TR: Advanced EtherNet/IP communication module with enhanced network performance.
- Allen-Bradley 1756-EN4TR: High-performance ControlLogix EtherNet/IP module for advanced automation networks.
- Allen-Bradley 1756-ENBT: Earlier generation EtherNet/IP communication module for ControlLogix systems.
- Allen-Bradley 1756-L83E: ControlLogix controller with integrated EtherNet/IP communication capability.
- Allen-Bradley 1756-A10: ControlLogix chassis for mounting communication and I/O modules.
- Allen-Bradley 1756-PA72: ControlLogix power supply module used with 1756 chassis systems.
