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Allen-Bradley 1756-EN2TR/C EtherNet/IP Communication Module

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Allen-Bradley 1756-EN2TR/C

by Allen-Bradley

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OverviewUpgrade your industrial control network with the Allen-Bradley 1756-EN2TR/C, a ControlLogix EtherNet/IP communication module engineered for demanding automation environments. This robust, high-performance module features two 10/100 Mbps Ethernet ports, ensuring optimal reliability and rapid data exchange. Designed to support redundant ring and linear network setups, it guarantees uninterrupted operation and maximum system availability in critical applications. The 1756-EN2TR/C supports 128 TCP/IP connections and can integrate with up to 8 motion axes, enabling real-time data flow, secure remote access, and effortless integration across various Ethernet-enabled devices. It is an essential element for contemporary industrial automation systems requiring a powerful, high-speed networking solution.Key Features Dual-Port 10/100 Mbps Ethernet: Allows for adaptable and fault-tolerant network architectures through Device-Level Ring (DLR) and linear topologies. Extensive TCP/IP Connection Handling: Manages up to 128 TCP/IP connections, satisfying high-volume data communication requirements without performance compromise. Integrated Motion Axis Support: Provides control for up to 8 motion axes, making it suitable for intricate motion control and synchronized operations. Flexible Network Configurations: Offers both Ring and Linear topology options, boosting redundancy, expandability, and network resilience. High-Speed Data Performance: Ensures real-time control and effective remote monitoring by facilitating swift data transfer across your industrial network. Enhanced Network Security: Integrates advanced security protocols to protect your industrial network from unauthorized access and potential cyber threats. Seamless ControlLogix Integration: Engineered for easy compatibility with existing Rockwell Automation ControlLogix chassis, simplifying deployment and setup. Technical Specifications Model: 1756-EN2TR Series: C Network Interface: EtherNet/IP Number of Ports: 2 (10/100 Mbps, RJ-45) Maximum TCP/IP Connections: 128 Motion Axes Support: Up to 8 Topology Support: Device-Level Ring (DLR), Linear Module Location: ControlLogix Chassis Backplane Current Draw: 970mA @ 5.1V DC Isolation Voltage: 30V (Continuous) Operating Temperature: 0°C to 60°C (32°F to 140°F) Mounting: Chassis Mount Applications Industrial Ethernet Installations: Forms the basis for dependable and high-speed data exchange within various automation systems. Factory and Process Automation: Crucial for integrating PLCs, HMIs, and distributed control systems, optimizing manufacturing and process effectiveness. Motion Control Systems: Delivers the high-speed communication necessary for precise and synchronized motion applications in robotics and automated machinery. Redundant Network Setups: Boosts network reliability and uptime in vital industrial operations through robust ring and linear topologies. Remote Monitoring and Data Logging: Enables real-time visibility and historical data collection for predictive maintenance, process optimization, and operational intelligence. Distributed Control Systems (DCS): Facilitates smooth communication between remote I/O and central controllers for large-scale industrial processes. Why Choose This Product?This module offers unparalleled reliability with dual ports supporting DLR and linear topologies, guaranteeing continuous operation and minimal downtime—crucial for critical industrial processes. It provides superior performance for challenging applications, boasting 10/100 Mbps communication speed and support for 128 TCP/IP connections, efficiently handling vast amounts of data in high-throughput environments. Furthermore, its capacity to support up to 8 motion axes makes it an excellent choice for advanced motion control systems.Order NowReady to enhance your industrial automation system? Purchase the Allen-Bradley 1756-EN2TR/C communication module today for a robust, high-speed networking solution.FAQWhat types of network topologies does the 1756-EN2TR/C support?The module supports both Device-Level Ring (DLR) and Linear network topologies, offering flexible and fault-tolerant network architectures.How many TCP/IP connections can this module manage?It is capable of managing up to 128 TCP/IP connections, accommodating significant data communication needs.Can this module be used in a motion control application?Yes, the 1756-EN2TR/C supports up to 8 motion axes, making it an ideal choice for complex motion control systems and synchronized operations.

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PRODUCT DETAILS

Allen-Bradley 1756-EN2TR/C

Overview

This is a genuine Allen-Bradley component from the ControlLogix family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem
  • Engineered to integrate inside ControlLogix installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes for the ControlLogix family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: 1756-EN2TR
  • Series: C
  • Network Interface: EtherNet/IP
  • Number of Ports: 2 (10/100 Mbps, RJ-45)
  • Maximum TCP/IP Connections: 128
  • Motion Axes Support: Up to 8
  • Topology Support: Device-Level Ring (DLR), Linear
  • Module Location: ControlLogix Chassis Backplane
  • Current Draw: 970mA @ 5.1V DC
  • Isolation Voltage: 30V (Continuous)
  • Operating Temperature: 0°C to 60°C (32°F to 140°F)
  • Mounting: Chassis Mount

Applications

  • Industrial Ethernet Installations: Forms the basis for dependable and high-speed data exchange within various automation systems.
  • Factory and Process Automation: Crucial for integrating PLCs, HMIs, and distributed control systems, optimizing manufacturing and process effectiveness.
  • Motion Control Systems: Delivers the high-speed communication necessary for precise and synchronized motion applications in robotics and automated machinery.
  • Redundant Network Setups: Boosts network reliability and uptime in vital industrial operations through robust ring and linear topologies.
  • Remote Monitoring and Data Logging: Enables real-time visibility and historical data collection for predictive maintenance, process optimization, and operational intelligence.
  • Distributed Control Systems (DCS): Facilitates smooth communication between remote I/O and central controllers for large-scale industrial processes.

Why Choose the 1756-EN2TR/C?

This module offers unparalleled reliability with dual ports supporting DLR and linear topologies, guaranteeing continuous operation and minimal downtime—crucial for critical industrial processes. It provides superior performance for challenging applications, boasting 10/100 Mbps communication speed and support for 128 TCP/IP connections, efficiently handling vast amounts of data in high-throughput environments. Furthermore, its capacity to support up to 8 motion axes makes it an excellent choice for advanced motion control systems.

Availability & Shipping

  • In stock: 1756-EN2TR/C ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 1756-EN2TR/C ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The module supports both Device-Level Ring (DLR) and Linear network topologies, offering flexible and fault-tolerant network architectures.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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