1756-EN4TR | Allen-Bradley ControlLogix EtherNet/IP Communication Module

Product Overview

The Allen-Bradley 1756-EN4TR represents the pinnacle of communication hardware for the ControlLogix 5580 platform. This high-capacity EtherNet/IP module facilitates high-speed data exchange, bridging the gap between controller-level logic and enterprise-level analytics. It supports Gigabit Ethernet speeds and manages massive connection counts for complex, data-intensive industrial applications. We offer this module as 100% Brand New and Original, ensuring your network infrastructure utilizes the latest hardware revisions for maximum security and throughput.

Technical Specifications

The 1756-EN4TR delivers significantly expanded bandwidth and connection density compared to legacy EN2T modules.

• Manufacturer: Allen-Bradley / Rockwell Automation

• Product Line: ControlLogix

• Module Type: High-Capacity EtherNet/IP Communication Module

• Media Support: Dual Copper Media (RJ45)

• Communication Rates: 10 Mbps, 100 Mbps, and 1 Gbps (Gigabit)

• Maximum TCP Connections: 512 Connections

• Maximum CIP I/O Connections: 1,000 Connections

• HMI/Messaging Connections: 528 Connections

• Unconnected Message Capacity: 256 Backplane / 256 Ethernet

• Network Topologies: Device Level Ring (DLR), Linear, and Star

• Socket Services: Fully Supported

• Weight: 0.69 lbs (0.31 kg)

Engineering Advantages

• Gigabit Backbone Performance: The 1756-EN4TR introduces 1 Gbps communication rates to the 1756 chassis. This tenfold increase in bandwidth over standard modules eliminates network bottlenecks in applications involving high-definition vision systems or large-scale distributed I/O.

• Massive Connection Density: With the ability to manage 1,000 CIP I/O connections and 512 TCP connections, a single 1756-EN4TR replaces multiple legacy adapters. This consolidation reduces chassis slot consumption and simplifies the network architecture.

• Redundant Network Resiliency: The integrated embedded switch supports Device Level Ring (DLR) topologies. This feature allows the network to recover from a single cable break in milliseconds, maintaining deterministic control and preventing costly process interruptions.

• Enhanced Socket Services: The module natively supports socket services, enabling direct communication with third-party devices like printers, barcode scanners, and non-Logix controllers using standard TCP or UDP protocols.

• Future-Proof Integration: Optimized for the ControlLogix 5580 series, this module leverages the high-speed backplane to ensure data moves at the maximum speed the processor allows, facilitating advanced IIoT and Industry 4.0 data harvesting.

FAQs

• How does the 1756-EN4TR improve upon the 1756-EN2TR?

  The 1756-EN4TR provides Gigabit (1 Gbps) speeds and supports roughly four times the TCP connection capacity of the EN2TR. It specifically addresses the needs of modern, data-heavy "Smart Factories" where legacy 100 Mbps modules struggle with traffic congestion.

• Can I use the 1756-EN4TR in older ControlLogix chassis?

  Yes. While it performs best in Series C chassis with 5580 controllers, you can install the 1756-EN4TR in standard 1756 I/O chassis to upgrade existing network segments. Always verify that your firmware version in Studio 5000 supports the EN4TR profile.

• Does this module support "Removal and Insertion Under Power" (RIUP)?

  Yes. Like most ControlLogix modules, you can install or remove the 1756-EN4TR while the chassis is powered. However, removing the communication module will immediately break the network path for all devices routed through its ports, so verify process safety before removal.

• Is this a genuine, factory-sealed unit?

  We guarantee that every 1756-EN4TR we ship is 100% Brand New and Original. It arrives in the original Allen-Bradley factory box with the UPC (889508721071) intact, ensuring you receive the full benefit of current manufacturing standards and hardware security.