Allen-Bradley 1756-ENBT Controllogix Enet/IP Comms Module 1756ENBT

Description:

The Allen-Bradley 1756-ENBT ControlLogix EtherNet/IP communication module is used in industrial automation systems to provide Ethernet network connectivity between ControlLogix controllers and distributed devices. Commonly installed in ControlLogix chassis to enable communication with HMIs, remote I/O, drives, and other PLCs over EtherNet/IP networks. Maintenance teams and system integrators use this module for system integration, network expansion, remote monitoring, and replacement of legacy communication modules.

Applications:

The Allen-Bradley 1756-ENBT module is commonly used in manufacturing systems, packaging lines, material handling systems, and process control environments where Ethernet-based communication is required. It supports plant-wide networking and distributed control architectures using the EtherNet/IP protocol. 

Technical Specifications:

• Manufacturer Part Number (MPN): 1756-ENBT / 1756ENBT
• Product Type: EtherNet/IP Communication Module
• Series: ControlLogix
• Communication Protocol: EtherNet/IP
• Ports: 1 × Ethernet (RJ-45)
• Communication Speed: 10/100 Mbps
• TCP Connections: Up to 64
• CIP Connections: Up to 128
• Power Requirements: 700 mA @ 5.1V DC, 3 mA @ 24V DC
• Power Dissipation: ~3.7 W
• Thermal Dissipation: ~12.6 BTU/hr
• Operating Temperature: 0 to 60°C
• Function: Communication bridge between ControlLogix backplane and Ethernet network
• Compatibility: ControlLogix chassis and Logix controllers
• Application Environment: Industrial automation systems

Common Replacements:

• Allen-Bradley 1756-EN2T (newer, higher performance)
• Allen-Bradley 1756-EN2TR (dual Ethernet ports)
• Allen-Bradley 1756-EN3TR (higher capacity module)