Communication Module Allen-Bradley 1756-ENBT ControlLogix Bridge

Product Overview

The Allen-Bradley 1756-ENBT is a ControlLogix communication module. It uses the EtherNet/IP protocol for data transfer. This module has one RJ45 port. It supports 10/100 Mbps speed in half or full duplex mode. The 1756-ENBT handles up to 64 TCP/IP connections. It also supports 128 Logix connections. This module works well for I/O and information tasks. It is web-enabled for easy diagnostics. Users can check IP traffic and connection status. The module fits in any ControlLogix chassis slot. It draws 700 mA at 5.1 Volts DC. It also draws 3 mA at 24 Volts DC. Power dissipation is 3.7 Watts. Thermal dissipation is 12.6 BTU per hour. The operating temperature range is 0 to 60 degrees Celsius. This module is backward compatible with older systems.

Application Scenarios

This module is ideal for industrial automation. It connects ControlLogix processors to an EtherNet/IP network. Use it for high-speed processor interlocking. It also controls distributed I/O devices. The 1756-ENBT routes data to other NetLinx networks. This setup reduces maintenance costs. It simplifies network architecture. The module works as a Remote I/O Adapter. Place it in a remote I/O chassis. Then users can control analog or specialty modules. It also collects data from input and output modules. This module supports socket services and SNMP. It is perfect for factory floor communication.

Technical Specifications

Manufacturer: Rockwell Automation. Brand: Allen-Bradley. Module Type: Ethernet Communication Module. Series: ControlLogix. Communication Rate: 10/100 Mbps. Integrated Ports: One RJ45 and one USB 1.1. Current Draw: 700 mA at 5.1 VDC. Current Draw: 3 mA at 24 VDC. Power Dissipation: 3.7 W. Thermal Dissipation: 12.6 BTU/hr. Insulation Voltage: 30 Volts Continuous. Enclosure: Open. Slot Width: 1. Operating Temperature: 0 to 60 degrees Celsius. UPC: 10612598269485. UNSPSC: 32151705. Packet Rate Capacity: 500 pps I/O and 900 pps HMI/MSG. Max Multicast Tags: 32. Duplicate IP detection starts at Revision 3.3.

Installation & Maintenance Guide

Install the 1756-ENBT in any ControlLogix chassis slot. Ensure the chassis power is off. Slide the module into the slot. Secure it with the locking mechanism. Connect an Ethernet cable to the RJ45 port. Use a standard twisted pair cable. Set the IP address using the USB port. Use RSLogix 5000 software for configuration. The module auto-negotiates speed and duplex. Check the module status via the web interface. Monitor diagnostics like collision histogram. Replace the module only after powering down. Keep the enclosure free of dust. Do not expose it to moisture.

Packing List

One Allen-Bradley 1756-ENBT module. One Quick Start Guide. No cables or software are included. The module is packed in an anti-static bag. It ships in a sturdy cardboard box. Shipping is via Fedex, UPS, or DHL.