Description
The Allen-Bradley 1756-EN3TR is a high-performance communication interface module designed for the ControlLogix platform. This EtherNet/IP bridge module features an integrated dual-port switch, allowing for seamless connectivity and support for Device Level Ring (DLR) topologies. It is engineered to facilitate efficient data exchange across industrial networks while supporting demanding applications, including advanced motion control systems with up to 128 axes.
Features
- Integrated dual-port switch for linear or ring network topologies.
- Supports EtherNet/IP communication protocols for robust industrial data transfer.
- High-capacity motion control support, capable of handling up to 128 axes.
- Designed for seamless integration into standard ControlLogix chassis environments.
- USB configuration port with a 12 Mbps data transfer rate for local maintenance and diagnostics.
Applications
This module is widely utilized in complex automation systems requiring high-speed communication between controllers and distributed I/O. It is particularly well-suited for motion control applications, large-scale process automation, and integrated manufacturing environments where high-bandwidth, reliable Ethernet connectivity is essential.
Technical Specifications
| Product Model |
1756-EN3TR |
| Communication Port |
EtherNet/IP (Copper) |
| Backplane Current (5V) |
1.0 A |
| Backplane Current (24V) |
3 mA |
| Power Consumption |
5.1 W |
| Insulation Voltage |
30 V (Continuous) |
| USB Rate |
12 Mbps |
Installation Guidelines
- Ensure the ControlLogix chassis is powered down before inserting or removing the 1756-EN3TR module to prevent electrical damage.
- Properly seat the module into the designated slot and secure it using the top and bottom latching mechanisms.
- Use shielded Ethernet cabling for all network connections to minimize electromagnetic interference (EMI) in industrial environments.
- Maintain adequate spacing within the cabinet to allow for proper airflow and cooling, as the module consumes 5.1 Watts during operation.
- Verify that the network topology is correctly configured for either linear or DLR mode prior to commissioning.
FAQ
Q: Does the 1756-EN3TR support Device Level Ring (DLR)?
A: Yes, this module features an embedded switch that supports DLR, allowing for fault-tolerant network rings.
Q: Is this module compatible with all ControlLogix chassis?
A: The 1756-EN3TR is designed for use with standard 1756 ControlLogix chassis. Ensure your firmware version is compatible with your specific controller requirements.
