1756 ENET

Overview of Allen-Bradley 1756-ENET

The Allen-Bradley 1756-ENET is a ControlLogix Ethernet communication interface module that provides high-speed network connectivity for Logix-based control systems. It supports EtherNet/IP communication at 10 Mbps and is designed for use in ControlLogix Series A and B chassis. This module enables real-time control and messaging, offering robust integration capabilities in industrial automation networks. The 1756-ENET has been discontinued and replaced by the 1756-ENBT.

Key Features

• Single Ethernet port (RJ-45) supporting 10 Mbps data transfer
• Also includes an AUI port for legacy connections and localized configuration
• Supports general messaging, real-time I/O messaging, and messaging for time synchronization and motion
• CIP safety standard compliant, allowing simultaneous transfer of safety and control data
• Compatibility with multiple chassis types: 1756-A4, A7, A10, and A13 Series A and B
• Supports up to 128 Logix connections and 64 TCP/IP connections
• Power dissipation approximately 13.3 Watts with a backplane current draw of 900 mA at 5.1 V DC and 350 mA at 24 V DC
• LED indicators for Transmit (TXD), Receive (RXD), and module status (OK)
• Operating temperature range: 0 to 60 °C and storage temperature range from -40 to 85 °C
• Open style enclosure designed for installation in ControlLogix chassis slots

Technical Specifications

Applications

The 1756-ENET module is designed for integrating ControlLogix systems into industrial Ethernet/IP networks enabling communication with distributed I/O, safety systems, and advanced motion control. It supports real-time I/O and messaging, suitable for manufacturing, process automation, and discrete control applications.