Product Overview
The Allen-Bradley 1756-L82EXT is a ControlLogix-XT controller from the ControlLogix-XT 5580 series. This industrial automation module is designed for demanding environments where corrosive or hazardous conditions are present. The conformal coating protects the electronics, ensuring reliable operation in harsh settings.
With 5 MB of user memory and support for up to 32 tasks and 1000 programs per task, the 1756-L82EXT handles complex control applications with ease. It features built-in USB and Ethernet ports, enabling straightforward connectivity to programming tools and plant networks.
Technical Specifications
Key specifications for the Allen-Bradley 1756-L82EXT include:
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User Memory: 5 MB
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Nonvolatile Memory (Optional): 20 MB
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Minimum Current Draw: 5 mA at 1.2V DC
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Maximum Current Draw: 1.2 A at 5.1V DC
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Shock Rating: 30 G
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Vibration Rating: 2 G at 10 to 500 Hz
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Communication: USB and Ethernet ports
These specifications confirm the 1756-L82EXT's capability for robust performance in industrial settings.
Key Features & Benefits
The 1756-L82EXT offers several advantages for system integrators and end-users:
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Conformal Coated: Protects against moisture, chemicals, and corrosive atmospheres.
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Extended Temperature Range: Operates from -25 to 70 °C standalone or -20 to 70 °C with Flex I/O-XT devices.
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High Memory Capacity: 5 MB user memory and optional 20 MB nonvolatile memory for program and data storage.
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Multiple Communication Options: Supports DeviceNet, Data Highway Plus, Ethernet, Remote I/O, and SynchLink networks.
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Flexible Programming: Compatible with Structured Text, Relay Ladder Logic, Sequential Function, and Function Block Diagram languages.
Industry Applications
The Allen-Bradley 1756-L82EXT is ideal for industries where equipment faces harsh conditions, such as chemical processing, oil and gas, and wastewater treatment. Its conformal coating and wide temperature tolerance make it suitable for outdoor or washdown applications.
For example, in a chemical plant, the 1756-L82EXT can control batch processes while exposed to corrosive vapors. In a food processing facility, it can manage packaging lines where high-pressure cleaning is routine. The controller's robust design minimizes downtime and extends service life, offering a strong return on investment.
Installation & Setup
Mount the 1756-L82EXT in a suitable enclosure, ensuring adequate clearance for airflow and wiring. Connect the power supply according to the specified current draw ratings. Use the USB port for local programming and the Ethernet port for network integration.
When installing, verify the environmental conditions match the controller's temperature and vibration limits. Secure all cables to prevent strain and avoid interference with signal lines.
Maintenance & Reliability
Regular inspection of the 1756-L82EXT is recommended to ensure optimal performance. Check for dust accumulation on the enclosure and connectors. In corrosive environments, inspect the conformal coating for any signs of damage.
The controller's rugged design reduces the need for frequent maintenance, contributing to lower total cost of ownership. By following a simple preventive maintenance schedule, you can maximize the lifespan of this industrial automation module.
Compatibility & Integration
The 1756-L82EXT integrates seamlessly with other ControlLogix and ControlLogix-XT components. It supports multiple communication protocols, including Ethernet, DeviceNet, and Remote I/O, allowing easy connection to existing plant networks.
Programming is accomplished using Rockwell Automation's Studio 5000 environment, ensuring smooth setup and configuration.
Buying Guide
Before purchasing the Allen-Bradley 1756-L82EXT, verify your system's power requirements and memory needs. Confirm that the optional nonvolatile memory (20 MB) is sufficient for your application. Check compatibility with your existing ControlLogix chassis and communication modules.
PLC Source PRO offers this genuine Allen-Bradley 1756-L82EXT controller with reliable availability and fast shipping.