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Description

The Allen-Bradley 1756-EN3TR is a high-performance communication module designed for the ControlLogix platform. This EtherNet/IP bridge module features an integrated dual-port embedded switch, facilitating seamless connectivity and network integration within industrial automation systems. Engineered for demanding environments, it provides reliable data exchange and supports advanced motion control applications, handling up to 128 axes of motion.

Features

  • Dual-port embedded switch for flexible network topology and reduced cabling requirements.
  • EtherNet/IP interface providing high-speed communication for ControlLogix controllers.
  • Supports up to 128 axes of motion, suitable for complex synchronized motion control tasks.
  • Efficient power management with low backplane current draw.
  • Robust construction designed for standard ControlLogix chassis mounting.

Technical Specifications

Product Model 1756-EN3TR
Communication Protocol EtherNet/IP
USB Data Transfer Rate 12 Mbps
Power Consumption 5.1 Watts
Backplane Current (5V) 1.0 A
Backplane Current (24V) 3 mA
Insulation Voltage 30V Continuous

Installation Guidelines

  • Ensure the ControlLogix chassis is powered down before inserting or removing the module to prevent electrical damage.
  • Align the module carefully with the chassis slot guides and seat it firmly to ensure proper backplane connection.
  • Use shielded Ethernet cabling for network connections to minimize EMI interference in industrial environments.
  • Verify that the module is securely locked into the chassis using the top and bottom latching mechanisms.
  • Maintain adequate spacing around the chassis to ensure proper airflow and cooling for all installed modules.

FAQ

What is the primary function of the 1756-EN3TR?
The 1756-EN3TR serves as an EtherNet/IP bridge, allowing the ControlLogix controller to communicate over Ethernet networks, including support for motion control data.

Does this module include an integrated switch?
Yes, the 1756-EN3TR features an embedded two-port switch, which allows for daisy-chaining network connections without requiring an external managed switch.

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