The Allen-Bradley 1756-EN3TR is a communication module used in the ControlLogix 1756 programmable logic controller (PLC) system from Rockwell Automation. Here’s a summary of its key information:

General:

• Product name: 1756-EN3TR
• Manufacturer: Allen-Bradley (Rockwell Automation)
• Type: Communication module
• Compatible PLC system: ControlLogix 1756

Technical specifications:

• Communication protocol: Ethernet/IP
• Ports: 1 x RJ45 Ethernet port
• Connections:
  • TCP: 128 connections (can be used for explicit or implicit applications)
  • CIP: 256 connections (can be used for any combination of explicit or implicit applications)
• Data rate: Up to 100 Mbps

Features:

• Supports both explicit and implicit messaging
• Provides high-speed communication for industrial applications
• Integrates easily with other ControlLogix modules
• Supports a variety of Ethernet/IP networks

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