Allen-Bradley 1756-L81E | ControlLogix Controller Module

Product Description

Overview

The Allen-Bradley 1756-L81E is a high-performance controller from the ControlLogix 5580 series. It supports modern industrial automation applications and provides a migration path from legacy PLC5 and SLC500 controllers. The controller includes 3MB user memory and a 2GB non-volatile storage through the 1784-SD2 Secure Digital (SD) card.

Technical Specifications

• Isolation Voltage: 50 Volts Continuous

• Power Dissipation: 6.2 Watts

• Current Draw: 1.20 mA at 5.1V, 5.0 mA at 1.2V DC

• Maximum Digital I/O: 128,000 points

• Maximum Analog I/O: 4,000 points

• Thermal Dissipation: 21.2 BTU per hour

• Enclosure: None (Open-Style)

• Communication Interfaces: One (1) Ethernet, One (1) USB

• Compatible Chassis: 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K, 1756-A17, 1756-A17K Series B/C

• Standard Power Supply Compatibility: 1756-PA50, 1756-PA72, 1756-PA72K, 1756-PA75, 1756-PA75K, 1756-PB50, 1756-PB72, 1756-PB72K, 1756-PB75, 1756-PB75K, 1756-PH75, 1756-PC75

• Redundant Power Supply Compatibility: 1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756-PSCA2, 1756-PSCA2K

Key Features

The 1756-L81E eliminates the need for a battery using an environmentally friendly energy storage solution. It handles up to 128,000 digital I/O points and 4,000 analog I/O points, making it suitable for complex industrial applications. Modern Ethernet and USB connectivity simplify system integration and data exchange across automation networks.