Allen-Bradley 1756-EN3TR EtherNet/IP Communication Module Enhances High-Speed Industrial Network Integration
As industrial automation systems continue to evolve toward higher connectivity and real-time data exchange, reliable network communication modules have become essential components in modern control architectures. The Allen-Bradley 1756-EN3TR EtherNet/IP Communication Module is designed to provide high-performance Ethernet connectivity for ControlLogix systems, enabling efficient communication between controllers, distributed I/O, HMIs, drives, and enterprise-level networks.
Advanced EtherNet/IP Communication for ControlLogix Platforms
The 1756-EN3TR is a dual-port EtherNet/IP bridge module developed for Rockwell Automation ControlLogix systems. Equipped with two RJ45 Ethernet ports and an embedded switch, the module supports linear, star, and Device Level Ring (DLR) network topologies, providing flexibility for industrial network design.
Key technical features include:
- Dual 10/100 Mbps Ethernet ports
- Embedded switch technology
- Support for Device Level Ring (DLR) redundancy
- Up to 128 TCP/IP connections
- High-capacity CIP Motion support
- Compatibility with ControlLogix 5570 and 5580 controllers
- Enhanced network security and performance architecture
Designed for Demanding Industrial Applications
Modern manufacturing facilities require deterministic communication between controllers and field devices. The 1756-EN3TR delivers robust EtherNet/IP performance for applications such as:
- Process automation systems
- Automotive production lines
- Material handling systems
- Packaging machinery
- Water and wastewater treatment facilities
- Oil & gas automation projects
- Power generation and utility control systems
By supporting high-speed data transfer and large-scale network integration, the module helps reduce communication bottlenecks while improving overall system responsiveness.
High Availability Through Redundant Network Architecture
One of the major advantages of the 1756-EN3TR is its support for network redundancy through Device Level Ring (DLR) technology. In mission-critical environments where downtime is unacceptable, DLR enables automatic communication recovery in the event of a network interruption, improving system reliability and operational continuity.
The module is also widely used in distributed I/O architectures, allowing remote ControlLogix chassis and field devices to communicate efficiently across EtherNet/IP networks. Industry engineers frequently deploy EN3TR modules in large-scale automation systems where network stability and scalability are essential.
Technical Specifications Overview
| Parameter | Specification |
|---|---|
| Model Number | 1756-EN3TR |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Type | EtherNet/IP Communication Module |
| Ethernet Ports | 2 × RJ45 |
| Network Speed | 10/100 Mbps |
| Communication Protocol | EtherNet/IP |
| TCP/IP Connections | 128 |
| Motion Support | CIP Motion |
| Topologies Supported | Star, Linear, DLR |
| Mounting | ControlLogix Chassis |
| Operating Temperature | 0°C to 60°C |
Technical data may vary depending on firmware revision and system configuration.
Global Supply and Technical Support
As industrial facilities continue upgrading legacy communication infrastructure, demand for genuine Allen-Bradley communication modules remains strong worldwide. Companies seeking replacement, expansion, or spare inventory of the 1756-EN3TR can benefit from working with experienced industrial automation suppliers capable of providing global logistics support and technical assistance.
For quotation requests, technical consultation, or availability information regarding Allen-Bradley 1756-EN3TR and other ControlLogix products, please contact:
Winnie
Email: sales7@askplc.com
WhatsApp: +86 180 2071 6847
ASKPLC specializes in supplying industrial automation products including PLC systems, DCS modules, communication modules, drives, HMIs, and spare parts for customers worldwide.
