PLC Controller Allen-Bradley 1756-L71K ControlLogix Processor

Product Overview

The Allen-Bradley 1756-L71K is a ControlLogix processor module. It belongs to the Logix5571 family. This unit offers 2 MB of user memory. It also has 0.98 MB of I/O memory. The module includes a conformal coating. This coating protects against humidity and dust. It supports up to 128,000 digital I/O points. It also handles 4,000 analog I/O points. The processor uses a USB 2.0 port for programming. It also supports an embedded Ethernet port. The 1756-L71K module is ideal for high-performance logic tasks. It works well in redundancy applications.

Application Scenarios

This processor module fits many industrial uses. It works in discrete manufacturing plants. It also suits process control environments. The conformal coating helps in wet or dirty areas. Use it for motion control applications. It supports ControlNet, DeviceNet, and EtherNet/IP networks. The module handles up to 500 controller connections. This makes it good for large systems. It is perfect for critical control tasks. The 1756-L71K is a reliable choice for factory automation.

Technical Specifications

• Module Type: Processor Module
• User Memory: 2 MB
• I/O Memory: 0.98 MB
• Maximum Digital I/O: 128,000
• Maximum Analog I/O: 4,000
• Current Draw at 1.2V DC: 5 mA
• Current Draw at 5.1V DC: 800 mA
• Power Dissipation: 2.5 Watts
• Thermal Dissipation: 8.5 BTU/hr
• Isolation Voltage: 30 Volts Continuous
• Enclosure: Open-Style

Installation & Maintenance Guide

Install the module in a ControlLogix chassis. Ensure the power is off before insertion. Slide the module into the slot firmly. Secure it with the locking mechanism. Connect the programming cable to the USB port. Use an energy storage module for backup. No lithium battery is needed. The front display shows runtime data. This helps with diagnostics. Keep the conformal coating intact for protection.

Packing List

• 1 x Allen-Bradley 1756-L71K Processor Module
• 1 x Energy Storage Module