Communication Module Allen-Bradley 1756-CN2RXT ControlNet

Product Overview

The Allen-Bradley 1756-CN2RXT is a ControlNet communication bridge module. It offers redundant media support for critical applications. This module is part of the ControlLogix-XT series. It works in harsh and corrosive environments. The temperature range is -25 to 70 °C. It provides 5 Mbps communication speed. The module supports 128 standard Logix connections. It also reserves 3 connections for redundant control. This design ensures reliable controller-to-controller interlocking. I/O updates always take priority over messaging tasks.

Application Scenarios

This module suits industrial plants with extreme conditions. Use it in oil and gas facilities. It works well in chemical processing units. It is ideal for mining operations. The 1756-CN2RXT handles high vibration and corrosive gases. It supports large distributed control systems. It connects up to 99 nodes on a single network. This makes it perfect for complex automation lines. It also works in water treatment plants. The module ensures data integrity in remote locations.

Technical Specifications

The module draws 1.3 Amperes at 5.1 Volts DC. It dissipates 6.6 Watts of power. It has two ControlNet BNC ports. These ports require 1786-RG6 quad-shield RG6 coaxial cable. The module also features one USB 1.1 port. This port runs at full speed of 12 Mbps. The isolation voltage is 30V continuous. It uses basic insulation type. The module fits in any chassis slot. It is compatible with 1756-A4LXT, 1756-A5XT, 1756-A7XT, and 1756-A7LXT chassis. The weight is only 0.293 kg.

Installation & Maintenance Guide

Install the module in any empty slot. Ensure the chassis is powered off. Slide the module into the guide rails. Push firmly until it locks. Connect the ControlNet cables to the BNC ports. Use only quad-shield RG6 coaxial cable. Power on the system and check the status indicators. The module does not require regular maintenance. Keep the area clean and dry. Avoid exposing the module to condensation. For troubleshooting, check the network cable connections. Verify the node address settings in your software. Always use proper grounding techniques.

Packing List

One Allen-Bradley 1756-CN2RXT module. One installation guide. The package does not include cables. You must order cables separately. The module comes in anti-static packaging. We ship via Fedex, UPS, or DHL. We ensure safe delivery to your location. Please inspect the module upon arrival. Contact support for any damage claims.