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- - Allen-Bradley 1756-L71 ControlLogix Controller
    
    Product Description
    
    The Allen-Bradley 1756-L71 is a ControlLogix 5571 programmable automation controller (PAC) designed for high-performance industrial control applications. It provides PLC processing capability, large memory capacity, and flexible communication options through the ControlLogix platform. The controller is widely used in machine automation, process control, and large-scale industrial systems.
    
    Technical Specifications
    
    Brand: Allen-Bradley (Rockwell Automation)
    
    Model: 1756-L71
    
    Product Type: ControlLogix Controller / Processor Module
    
    Series: ControlLogix 5570
    
    Controller Type: Standard Controller
    
    User Memory: 2 MB
    
    Programming Port: 1 × USB 2.0
    
    Nonvolatile Memory: Supports Secure Digital (SD) card
    
    Controller Tasks: Up to 32 tasks
    
    Motion Control: Supports up to 100 motion axes
    
    Communication Support:
    
    EtherNet/IP (via communication module)
    
    ControlNet
    
    DeviceNet
    
    Data Highway Plus
    
    Remote I/O
    
    SynchLink
    
    Power Supply:
    
    800 mA @ 5.1 VDC
    
    5 mA @ 1.2 VDC
    
    Power Dissipation: Approx. 2.5 W
    
    Mounting: ControlLogix 1756 chassis slot
    
    Operating Temperature: 0…60 °C
    
    Advantages & Features
    
    High-speed ControlLogix processing performance
    
    2 MB user memory for complex automation programs
    
    Supports large-scale I/O architectures
    
    Compatible with Studio 5000 Logix Designer software
    
    Supports multiple industrial communication networks
    
    Reliable modular design for industrial control systems
    
    Suitable for legacy ControlLogix system maintenance and replacement
    
    Applications
    
    Factory automation systems
    
    Machine control equipment
    
    Process automation
    
    Production line control
    
    Material handling systems
    
    Motion control applications
    
    Large industrial PLC systems
    
    Notes / Precautions
    
    Requires a compatible 1756 ControlLogix chassis and power supply
    
    Communication requires appropriate ControlLogix communication modules
    
    Verify firmware version compatibility before replacement
    
    Backup existing PLC programs before installation
    
    Confirm Studio 5000 software compatibility