Allen-Bradley ControlLogix 1756-L72 Processor Module 4 MB

Product Overview

The Allen-Bradley 1756-L72 is a processor module from the ControlLogix series. It provides 4 MB of user memory for complex control tasks. This module supports a maximum of 128,000 digital I-O points. It also handles up to 4,000 analog I-O points. The 1756-L72 includes a USB port for programming and configuration. It ships with a 1 GB 1784-SD1 memory card. This processor is ideal for demanding industrial environments.

Application Scenarios

This processor works well in large automation systems. Use it for assembly lines, material handling, and process control. It supports full redundancy for critical applications. The module handles high-speed logic and data management. Engineers use it in manufacturing, oil and gas, and power generation. The 1756-L72 fits into a standard ControlLogix chassis. It communicates with other modules over the backplane.

Technical Specifications

The module draws 5 milliamps at 1.2 Volts DC. It draws 800 milliamps at 5.1 Volts DC. Power dissipation is 2.5 Watts. Thermal dissipation is 8.5 BTU per hour. Isolation voltage is 30 Volts continuous. The operating shock rating is 30G. Relative humidity range is 5-95 percent non-condensing. The unit weighs 0.25 kg. It supports programming in relay ladder, structured text, function block, and SFC.

Installation & Maintenance Guide

Install the 1756-L72 into any slot of a ControlLogix chassis. Ensure the chassis is powered off before insertion. Secure the module with the locking screws. Connect the USB cable for programming. Use Rockwell Automation software for configuration. No regular maintenance is required. Keep the enclosure free of dust and debris. Check the SD card for firmware updates periodically.

Packing List

1 x Allen-Bradley 1756-L72 Processor Module
1 x 1784-SD1 1 GB Secure Digital Card
1 x Product Documentation Sheet