Description
Allen-Bradley 1756-EN2TR Product Introduction
- Model: 1756-EN2TR
- Brand: Allen-Bradley (Rockwell Automation)
- Series: Allen-Bradley 1756 ControlLogix 5500 Series
- Core Function: Industrial Ethernet communication & routing
- Type: Communication Module
- Key Specs: 24VDC, Ethernet/IP, 2 ports
- Supply Status: in stock
- Stock: 8
- Warranty: 1 year
- Ship From: China

1756-EN2TR
Product System Function Introduction
The 1756-EN2TR is a communication module under Allen-Bradley’s 1756 ControlLogix 5500 Series. It is designed for industrial Ethernet communication and routing. It transmits data stably and efficiently. It integrates seamlessly with ControlLogix control systems. Its specific system functions are divided into the following points:
1. Functional Positioning and Core Value: It is a professional Ethernet communication & routing module. It realizes data exchange and routing between control devices. It connects PLCs, HMIs and industrial equipment. It ensures smooth communication of the automation system.
2. Communication Performance: It has 2 Ethernet ports for data transmission and routing. It supports Ethernet/IP communication protocol. It has fast transmission speed and low latency. It ensures stable data exchange in harsh industrial environments.
3. Compatibility and Integration: It is fully compatible with 1756 ControlLogix chassis. It integrates seamlessly with Allen-Bradley PLCs, HMIs and servo systems. It supports RSLinx software configuration. It is easy to connect with other industrial networks.
4. Reliability and Durability: It adopts rugged industrial design. It has strong anti-electromagnetic interference ability. It adapts to high temperature, dusty and humid industrial sites. It has long service life and low failure rate.

1756-EN2TR
Application Industries
With its stable communication performance, good compatibility and routing function, this communication module is widely used in various industrial fields, especially Allen-Bradley’s advantageous fields such as automotive and petrochemical. The main application industries are as follows:
1. Automotive Manufacturing Industry: It is used in automobile assembly lines and parts processing. It connects control systems and on-site equipment. It ensures smooth data transmission and routing of the production line.
2. Petrochemical Industry: It is applied to chemical production workshops and pipeline control. It adapts to harsh on-site environments. It ensures stable communication and routing of control and monitoring data.
3. Electronic Manufacturing Industry: It is used in electronic component assembly and testing. It builds industrial Ethernet networks. It improves production efficiency and data transmission accuracy.
4. Precision Machining Industry: It is applied to CNC machine tools and intelligent production lines. It connects various control devices and routes data. It meets the requirements of high-precision production.
5. General Automation Industry: It is suitable for large-scale industrial automation systems. It is widely used in data communication and routing of industrial equipment.
Usage Instructions
To ensure the stable and safe operation of the 1756-EN2TR communication module, please follow the following usage instructions:
1. Installation Requirements: Install the module firmly in the 1756 ControlLogix chassis. Keep it away from high temperature, humidity and corrosive gases. Ensure good ventilation to avoid overheating.
2. Wiring Specifications: Strictly follow the wiring diagram to connect power and Ethernet cables. Use shielded Ethernet cables to reduce interference. Do not wire with power on. Ensure correct port connection for routing.
3. Parameter Configuration: Configure communication and routing parameters with RSLinx software. Set IP address and protocol parameters as needed. Ensure parameters match the industrial network requirements.
4. Operation and Maintenance: Regularly check the module’s running status and indicator lights. Clean the module surface to remove dust. Check cables for looseness and tighten them in time. Regularly check communication and routing stability.
5. Safety Precautions: Cut off the power before installation or maintenance. Do not touch the module’s terminals with wet hands. Avoid overloading the module. Only professional personnel can perform debugging.
