The Allen-Bradley 1756-EN2TR functions as a high-performance communication interface for ControlLogix chassis. This module bridges the gap between your controller and EtherNet/IP enabled devices, facilitating real-time data exchange for high-speed I/O and motion control. It features dual RJ45 ports that enable advanced network topologies without the need for additional switches. We guarantee this unit is 100% Brand New and Factory Sealed, ensuring peak performance and full security compliance for your industrial network.
| Specification | Technical Details |
| Product Type | EtherNet/IP Communication Bridge Module |
| Network Support | EtherNet/IP (Industrial Ethernet) |
| Number of Ports | 2 × RJ45 Ethernet; 1 × USB (Configuration only) |
| Communication Rate | 10/100 Mbps (Auto-negotiation, Full/Half Duplex) |
| Network Topologies | Device Level Ring (DLR), Linear, Star |
| CIP Connections | 256 (TCP/IP) |
| Packet Throughput | 5,000 I/O packets per second |
| Backplane Current | 1.2 A @ 5.1V DC |
| Power Dissipation | 6.12 W |
| Isolation Voltage | 50V (Continuous), Basic Insulation Type |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Vibration Resistance | 2 g @ 10–500 Hz |
| Dimensions (HxWxD) | 145 × 35 × 140 mm (5.71 × 1.38 × 5.51 in.) |
| Chassis Compatibility | ControlLogix 1756 Series B and C Chassis |
Network Fault Tolerance: The 1756-EN2TR implements Device Level Ring (DLR) technology, which maintains system communication even if a single point of failure occurs in the network ring.
High-Speed I/O Processing: This module handles up to 5,000 packets per second, providing the bandwidth required for high-density I/O and precise motion control synchronization (CIP Motion).
Bridge & Routing Capability: It acts as a bridge to link information from the ControlLogix backplane to the plant-wide Ethernet infrastructure, allowing seamless data collection and remote programming.
Rapid Deployment: The integrated USB port facilitates direct local configuration. Engineers can assign IP addresses and flash firmware quickly without pre-existing network access.
Is this 1756-EN2TR unit brand new?
Yes, we provide this module as 100% Brand New and Original in factory-sealed packaging. It includes the standard manufacturer's quality assurance.
Can I use the two ports for two separate networks?
No. The dual ports function as an internal switch. They share a single IP address and primarily support DLR (Device Level Ring) or Daisy-chain (Linear) topologies within the same subnet.
Does this module support CIP Safety?
Yes. The 1756-EN2TR supports CIP Safety, enabling you to transport safety data between GuardLogix controllers and safety I/O devices over the Ethernet network.
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