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- 1756-EN2TRXT
- ControlLogix ControlNet Communication Module
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- 140 × 145 × 35 mm
- 0.58kg
- Xiamen, China
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Industrial Communication Module Technical Report
Model: 1756-EN2TRXT EtherNet/IP Extreme Environment Redundant Module
1. Product Overview
The 1756-EN2TRXT is an extreme-environment (XT series) ControlLogix EtherNet/IP communication module designed for industrial automation systems that operate under harsh environmental conditions such as high temperature, humidity, vibration, or corrosive atmospheres.
It provides dual-port Ethernet communication with support for Device Level Ring (DLR) redundancy, enabling continuous network operation even in the event of a single network fault.
This module is part of the ControlLogix-XT platform, which is specifically engineered for extended temperature and industrial durability applications.
2. Brand and Series Information
- Brand: Industrial automation control platform
- Series: ControlLogix 1756-XT Series
- Product Family: EtherNet/IP Communication Modules (Extreme Environment)
- Module Type: Dual-Port Redundant Ethernet Module (XT Grade)
The XT series is designed for harsh environments where standard industrial electronics may fail due to temperature extremes or environmental stress.
3. Product Description
The 1756-EN2TRXT module provides EtherNet/IP communication over two RJ45 copper ports. It supports 10/100 Mbps industrial Ethernet and is optimized for redundant ring and linear network architectures.
It integrates directly into the ControlLogix chassis and communicates with PLC processors, remote I/O systems, drives, HMIs, and SCADA platforms.
Compared with standard EN2TR modules, the XT version is designed with extended environmental tolerance, making it suitable for outdoor or severe industrial environments.
It supports CIP communication, real-time I/O control, and high-density network connections.
4. Technical Parameters
| Parameter | Specification |
|---|---|
| Communication Protocol | EtherNet/IP (CIP) |
| Network Type | Industrial Ethernet (Copper RJ45) |
| Data Rate | 10/100 Mbps |
| Ethernet Ports | 2 × RJ45 |
| Network Topology | DLR, Linear, Star |
| TCP Connections | up to 128 |
| CIP Connections | up to 256 |
| Motion Axes Support | up to 8 axes |
| Backplane Current | ~1.0 A @ 5.1 V DC |
| Auxiliary Current | ~3 mA @ 24 V DC |
| Power Consumption | ~5.5 W |
| Thermal Dissipation | ~18 BTU/hr |
| Operating Temperature | -25°C to +70°C (extended range) |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5% – 95% non-condensing |
| Vibration Resistance | 2 G (10–500 Hz) |
| Shock Resistance | 30 G operating |
| Chassis Compatibility | 1756 ControlLogix XT chassis |
| Slot Width | 1 slot |
| Dimensions | approx. 140 × 145 × 35 mm |
| Weight | ~0.58 kg (approx.) |
5. Product Applications
The 1756-EN2TRXT is designed for demanding industrial environments:
- Offshore oil and gas platforms
- Mining and mineral processing systems
- Steel mills and high-temperature production lines
- Chemical and corrosive industrial plants
- Outdoor power generation facilities
- Heavy industrial automation systems
- Harsh environment SCADA networks
- Remote industrial control installations
It is especially suited for environments where standard electronics cannot maintain stability due to temperature or corrosion exposure.
6. Product Advantages
- Extended temperature design (-25°C to +70°C operation)
- Dual Ethernet ports with DLR ring redundancy
- High connection capacity for complex systems
- Strong resistance to vibration and harsh environments
- Stable real-time CIP communication
- Suitable for outdoor and corrosive industrial sites
- Flexible network topology support (ring, linear, star)
- High reliability under continuous operation
- Compatible with ControlLogix-XT chassis systems
- Designed for mission-critical industrial environments
7. Same Series / Related Models (ControlLogix Ethernet Family)
| Model | Function | Key Parameters |
|---|---|---|
| 1756-EN2TRXT | XT dual-port Ethernet module | Extended temp, DLR support, ~0.58 kg |
| 1756-EN2TR | Standard dual-port Ethernet module | 10/100 Mbps, room temperature |
| 1756-EN2T | Single-port Ethernet module | Basic EtherNet/IP communication |
| 1756-EN2F | Fiber Ethernet module | Fiber optic, EMI resistant |
| 1756-EN2TP | PRP redundant Ethernet module | Parallel redundancy protocol |
8. Other Popular Modules in Same Ecosystem
| Model | Function | Key Parameters |
|---|---|---|
| 1756-L71 | PLC controller module | High-performance CPU, large memory |
| 1756-L72 | Advanced controller module | Faster execution and expanded capacity |
| 1756-IF8 | Analog input module | 8-channel analog signal acquisition |
| 1756-OB16E | Digital output module | 16-point electronic output |
| 1756-IB16 | Digital input module | 16-channel industrial input |
9. Engineering Summary
The 1756-EN2TRXT is a ruggedized EtherNet/IP communication module designed for extreme industrial environments where temperature, vibration, and environmental stress exceed normal industrial limits.
It combines redundancy, high network capacity, and extended environmental tolerance, making it suitable for mission-critical industrial applications in harsh conditions.
Within the ControlLogix ecosystem, it is the preferred Ethernet solution for XT-grade systems requiring both reliability and environmental durability.