Allen-Bradley | 1756-L71 | ControlLogix 5570

Product Description: Allen-Bradley 1756-L71

The Allen-Bradley 1756-L71 is a ControlLogix 5570 series programmable automation controller with 2 MB of user memory. It is designed to handle a broad range of industrial applications, offering real- time processing for discrete, motion, and process control. Installed in a 1756 ControlLogix chassis, this controller provides scalable and modular control with high-speed task execution and flexible system configuration. It is fully supported by Studio 5000 Logix Designer software.

Key Features

• 2 MB user memory
• Supports up to 250 controller connections
• Integrated USB programming port
• Compatible with ControlNet, EtherNet/IP, and other communication modules
• Slot for removable SD memory card for backup and restore
• Modular and scalable design within the 1756 platform
• Supports real-time multitasking and user-defined instructions
• Ideal for mid-sized control applications

Technical Specifications

• User Memory: 2 MB
• Controller Connections: Up to 250
• USB Port: Yes (for programming and configuration)
• Nonvolatile Storage: SD card slot (supports 1784-SD1/SD2)
• Input Power: Supplied via 1756 chassis backplane
• Operating Temperature: 0°C to 60°C
• Storage Temperature: -40°C to 85°C
• Relative Humidity: 5% to 95% non-condensing
• Dimensions (H x W x D): Approx. 145 mm x 35 mm x 140 mm
• Certifications: UL, CE, CSA, ATEX, IECEx, Class I Div 2

Application Areas

• Machine control systems
• Material handling and conveying lines
• Packaging and bottling equipment
• Utility and infrastructure automation
• Process monitoring in manufacturing
• Discrete control applications

Advantages

• Compact and cost-effective controller for mid-range systems
• Reliable and responsive real-time performance
• Compatible with full range of ControlLogix I/O and communication modules
• Scalable architecture for future system growth
• Simplifies programming with Studio 5000 and structured data types