PLC Controller Allen-Bradley 1756-L81E ControlLogix 5580 3MB

Product Overview

The Allen-Bradley 1756-L81E is a standard controller from the ControlLogix 5580 family. It offers 3MB of user memory. This module fits into a single slot of a ControlLogix chassis. It has one USB 2.0 port and one gigabit Ethernet port. This controller supports up to 60 EtherNet/IP devices. It can handle 128,000 digital I/O points and 4,000 analog I/O points. The unit uses a battery-free energy storage solution. This design makes it more environmentally friendly.

Application Scenarios

This controller works well for medium to large automation systems. It is a great upgrade for older PLC-5 or SLC 500 systems. Use it in manufacturing, packaging, or material handling lines. It supports 32 tasks and up to 1000 programs per task. This allows for complex machine control. The built-in Ethernet port enables fast data exchange. It works with Studio 5000 software for easy programming.

Technical Specifications

The 1756-L81E draws 1.20 mA at 5.1 Volts and 5.0 mA at 1.2 Volts DC. It dissipates 6.2 Watts of power. The thermal output is 21.2 BTU per hour. It has an isolation voltage of 50 Volts continuous. The unit is IECx, CSA, and c-UL-us certified. It meets IEC 61000-6-4 emission standards. The controller can withstand a 30G shock. It handles 2G vibration at 10-500 Hz.

Installation & Maintenance Guide

Install the module into any compatible ControlLogix chassis. Supported chassis include 1756-A4, 1756-A7, 1756-A10, and 1756-A13 series. Use standard power supplies like 1756-PA75 or 1756-PB72. For redundant systems, use 1756-PA75R models. No battery is needed for memory backup. The unit has a 4-character alphanumeric display for status. Always power down the chassis before inserting or removing the module.

Packing List

1 x Allen-Bradley 1756-L81E Controller Module. 1 x Quick Start Guide. No cables or software are included. The unit is shipped in anti-static packaging. Shipping is via Fedex, UPS, or DHL.