Allen-Bradley 1756-ENBT Ethernet IP Interface Module

The Allen-Bradley 1756-ENBT EtherNet/IP Interface Module is the Ethernet/IP bridge for ControlLogix systems, connecting a backplane to an industrial Ethernet network to enable real-time I/O and messaging over EtherNet/IP. It provides a single 10/100 Mbps copper RJ45 network port for Ethernet connectivity and is designed to be hot-swappable within a chassis, allowing replacement without powering down in many configurations. The module supports up to 64 TCP connections and 128 CIP connections, enabling a mix of I/O data traffic and explicit messages across the EtherNet/IP network. Common applications include linking 1756 I/O racks to Ethernet networks, integrating HMIs, SCADA systems, and other EtherNet/IP devices with a ControlLogix controller. Firmware version F 6.004 is listed for this module, and its catalog number is 1756-ENBT. This module is part of the ControlLogix Ethernet/IP family and is commonly used to bridge ControlLogix backplanes to industrial networks. The 10/100 Mbps operation provides deterministic performance suitable for typical factory-floor environments.