Allen-Bradley 1756-EN2TR

Manufactured by Rockwell Automation, the Allen-Bradley 1756-EN2TR combines dual 10/100 Mbps Ethernet ports with advanced CIP (Common Industrial Protocol) functionality, supporting both explicit messaging and implicit I/O messaging.

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Key Specifications

What Are the Features of Allen-Bradley 1756-EN2TR?

1. Dual-Port Redundancy and Topology Flexibility

The Allen-Bradley 1756-EN2TR is equipped with two independent 10/100 Mbps Ethernet ports that support multiple network topologies including linear device level ring (DLR), redundant network, and daisy-chain configurations.

Dual-port design eliminates the need for external switches in small to medium networks, reducing hardware costs and wiring complexity.

In DLR mode, the module supports network recovery within 3 ms, ensuring minimal downtime in the event of a single network failure, which is critical for high-availability automation systems.

2. High-Speed Industrial Communication

To meet the demand for high-speed real-time control, it supports CIP Sync and CIP Motion, enabling precise time synchronization and coordinated motion control across multiple devices.

With support for 128 simultaneous I/O connections, the module can handle large volumes of real-time data from hundreds of field I/O devices without compromising communication latency.

3. Seamless Integration with Rockwell Ecosystem

The 1756-EN2TR is fully integrated with the Rockwell Automation integrated architecture system, compatible with all ControlLogix controllers, I/O modules, and software platforms including Studio 5000 Logix Designer.

It also supports connectivity to FactoryTalk Historian and FactoryTalk View, enabling seamless integration of shop-floor data with enterprise-level management systems.

4. Enhanced Network Security

The 1756-EN2TR includes built-in security features aligned with industrial cybersecurity standards, supporting password protection, port security, and CIP security.

It helps prevent unauthorized access to control systems and protects critical industrial data.

5. Space-Saving Design

As a single-slot module for ControlLogix chassis, it occupies only one slot, leaving more space for other I/O or function modules in the chassis.

Application Scenarios

· Discrete manufacturing: Automated assembly lines, robotic workcells, packaging machinery, and material handling systems

· Process automation: Food and beverage processing, pharmaceutical production, water treatment, and chemical processing

· Energy industry: Wind farms, solar power generation, smart grid distribution, and oil and gas extraction systems

· Infrastructure: Intelligent transportation systems, building automation, and airport/port automation systems

· High-availability control systems: Dual redundant network architectures for critical production processes requiring minimal downtime

Ordering Information

At Floating Light Automation, we supply genuine Allen-Bradley 1756-EN2TR modules with complete factory testing and certification. All products come with a 12-month warranty guarantee, professional technical support, and fast global shipping.

If you need product quotations, technical specifications, or bulk purchasing inquiries, please contact our sales team for assistance.

FAQ

Q: How do I resolve the module mismatch warning for the 1756-EN2TR?

A: A module mismatch warning indicates a version discrepancy between the physical hardware and the project configuration. To resolve this, update the module's firmware version within your Studio 5000 project to match the version of the actual physical module.

Q: What is the difference between the 1756-EN2TR and the 1756-EN2T?

A: The primary difference lies in network topology support:

1756-EN2TR: Features two Ethernet ports and a built-in switch; supports DLR (Device Level Ring) topology.

1756-EN2T: Also features two Ethernet ports but does not support DLR.

Choose the 1756-EN2TR if your network architecture requires DLR ring redundancy.

Q: How do I set the IP address for the 1756-EN2TR?

A: The module is equipped with thumbwheel switches, allowing for quick IP address configuration via hardware settings—ideal for rapid on-site installation and replacement.

Configuration can also be performed via software (such as Studio 5000 or a BOOTP/DHCP server).

Q: Is the 1756-EN2TR brand new and authentic? Does it come with a warranty?

A: Every 1756-EN2TR unit supplied by Floating Light Automation is a brand-new, authentic product with traceable origins.

All products come with a standard one-year warranty, consistent with Rockwell's official warranty standards.