1756-L83EXT Rockwell Automation ControlLogix-XT PLC CPU Module

Product Overview

The 1756-L83EXT belongs to the high-performance ControlLogix-XT 5580 series. It manages demanding industrial environments with extended temperature support. This controller features 10 MB of user memory for complex logic tasks. It utilizes a chassis-based design for seamless integration into existing ControlLogix systems. The unit provides enhanced processing power for high-speed motion and discrete control.

Technical Specifications

• Brand: Rockwell Automation / Allen-Bradley
• Model: 1756-L83EXT
• Series: ControlLogix-XT 5580
• User Memory: 10 MB standard capacity
• Non-Volatile Memory: 2 GB optional storage via SD card
• Operating Temperature: -25 to 70 degrees Celsius
• Storage Temperature: -40 to 85 degrees Celsius
• Relative Humidity: 5 to 95 percent non-condensing
• Vibration Resistance: 2 G at 10 to 500 Hz
• Shock Rating: 30 G during operation
• Current Draw: 1.2 A at 5.1V DC and 5 mA at 1.2V DC
• Thermal Dissipation: 21.2 BTU per hour
• Power Dissipation: 6.2 Watts
• Isolation Voltage: 50 Volts continuous insulation
• Controller Tasks: 32 maximum tasks
• Programs per Task: 1000 programs

Installation and Compatibility

• Install the 1756-L83EXT in a ControlLogix-XT chassis for maximum thermal performance.
• Ensure use of Series C XT chassis for 70 degree Celsius ratings.
• The module fits into any available slot in the local chassis.
• Use Category 2 cables for Ethernet and Category 3 for USB ports.
• The controller supports Studio 5000 Logix Designer programming environments.
• Compatible with Relay Ladder Logic and Structured Text languages.
• Integrates with Sequential Function Charts and Function Block Diagrams.

Diagnostics and Performance

• The 1756-L83EXT provides real-time status indicators on the front panel.
• Onboard diagnostics track module health and communication integrity.
• Digital signatures help protect against unauthorized firmware alterations.
• Role-based access control enhances system security and stability.

Typical Application Scenarios

• Oil and Gas processing plants requiring wide temperature ranges.
• Outdoor wastewater treatment facilities with extreme weather exposure.
• Mining operations with high vibration and mechanical shock requirements.
• Power generation plants utilizing Distributed Control Systems.

Global PLC Spare HUB's Insight

The 1756-L83EXT is a premier choice for extreme environmental automation. Most standard controllers fail outside the 0 to 60 degree range. This XT version bridges that gap without requiring expensive cooling systems. It offers the same logic engine as the standard 5580 series. Engineers value its consistency across diverse site conditions.

Compliance and Certifications

• Certified for CE and CSA standards.
• Compliant with RCM and KC requirements.
• Approved for Ex and IECEx hazardous locations.
• FM and cULus listed for industrial safety.
• EAC certification for international trade compliance.

Shipping and Warranty

• Packaging List: One 1756-L83EXT Controller in factory-sealed box.
• Shipping Methods: Express delivery via FedEx, UPS, or DHL.
• Dispatch Time: Ships within 24 to 48 hours of order.
• Warranty: Full 12-month technical warranty included.

Buying Guide

• Verify your chassis series before purchasing to ensure temperature compliance.
• Confirm if your application requires the optional 2 GB non-volatile memory.
• Check software version compatibility in Studio 5000 for 5580 controllers.

Frequently Asked Questions

Does this controller include the SD memory card?

Standard units ship with 10 MB internal memory while the 2 GB card is optional.

What is the benefit of the XT designation?

XT stands for Extended Temperature and includes conformal coating for harsh environments.

Can I use this in a standard non-XT ControlLogix chassis?

Yes, but the temperature rating will be limited by the chassis specifications.

Which communication ports are built into the module?

The unit features an onboard USB port and a high-speed Ethernet port.

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