Purchase now: Allen-Bradley 1756-EN4TR ControlLogix Gigabit EtherNet/IP Bridge
Atlantechdrives provides you the 1756-EN4TR, the most advanced EtherNet/IP communication module for the ControlLogix 1756 platform. Designed to meet the demands of modern Industrial IoT (IIoT) and high-speed motion control, the 1756-EN4TR provides a 1-Gigabit per second (Gbps) communication interface with dual ports for Device Level Ring (DLR) topologies. This module is essential for applications requiring massive data throughput and ultra-low latency.
- Communication Speed: 10/100/1000 Mbps (1 Gbps)
- Logix Connections: Up to 512
- TCP/IP Connections: Up to 256
- Features: DLR, Parallel Redundancy Protocol (PRP), and CIP Security
- Capacity: Supports up to 128 axes of Integrated Motion
Technical Superiority: The Gigabit Standard for Industry 4.0
The 1756-EN4TR is engineered to act as the primary gateway for high-performance automation architectures. By utilizing Gigabit Ethernet technology, it provides up to 10 times the bandwidth of the legacy EN2T modules. This massive increase in capacity allows for the simultaneous handling of high-speed I/O, coordinated motion control, and heavy HMI/SCADA traffic without the risk of network saturation. The module supports CIP Security, providing hardware-based authentication and encryption to protect your industrial assets from unauthorized access. Whether you are implementing a complex automotive assembly line or a high-speed packaging system, the 1756-EN4TR ensures your network is future-proof and deterministic.
Installation Advice: Optimizing 1Gbps Infrastructure
To achieve the full 1-Gigabit performance of the 1756-EN4TR, your network infrastructure must be up to the task. We recommend using shielded Category 6 (Cat6) or better cabling for all connections. While the module is backward compatible with Cat5e, the higher frequency rating of Cat6 ensures better noise immunity in environments with significant electromagnetic interference. When configuring a Device Level Ring (DLR), ensure all nodes in the ring are compatible with the selected speed. It is also a best practice to use the «Internal Clock Synchronization» (PTP – Precision Time Protocol) features of the EN4TR to ensure microsecond accuracy across your motion axes.
Maintenance and Cybersecurity Integrity
The 1756-EN4TR is a sophisticated connected device. Maintenance involves regular firmware audits to ensure you are protected against newly discovered vulnerabilities; always use digitally signed firmware from Rockwell Automation. In Studio 5000, monitor the «Network Utilization» metrics to ensure your bandwidth remains within the 80% safety margin. The front-panel scrolling display provides real-time IP address and status info, which is invaluable for field diagnostics. If you notice an «Inhibit» status, check the chassis power supply, as the high-speed processor in the EN4TR draws more current than standard communication modules.
FAQs
Q: Does the 1756-EN4TR support Redundant Chassis?
A: Yes, it is fully compatible with ControlLogix Redundancy systems using L8 series processors.
Q: What is the benefit of CIP Security on the EN4TR?
A: It allows for secure communication between controllers and devices, preventing unauthorized «man-in-the-middle» attacks.
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This high-performance Ethernet bridge supports dual-port redundant topologies; for optimal network management, pair it with a Stratix 5700 managed switch.
