1756-L61B

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Overview of Allen-Bradley 1756-L61 ControlLogix Processor Module

The Allen-Bradley 1756-L61 is a ControlLogix 5561 series processor module designed for industrial automation with 2 MB of user memory. It supports up to 128,000 I/O points, 4,000 analog I/O points, and offers reliable and fast program execution. This module includes an RS-232 serial port compatible with multiple communication protocols and fits into any slot of various ControlLogix chassis models.

Key Features of 1756-L61

  • User memory: 2 MB battery-backed RAM with optional CompactFlash non-volatile memory card support (up to 128 MB).
  • Supports up to 128,000 total I/O points (digital and analog) providing extensive system connectivity.
  • Program support: up to 32 tasks, up to 100 programs per task.
  • High-speed scan times: approximately 0.08 ms per kilobyte of code.
  • Communication protocols: RS-232 supporting ASCII, DF1 (full and half-duplex), DH-485, Modbus; EtherNet/IP and others via communication modules.
  • Operating temperature range: 0 to 60°C (32 to 140°F).
  • Vibration and shock resistance for industrial environments.
  • Slot width: 1; compatible with 1756-A4, A7, A10, A13, A17 chassis and variants.
  • Backplane current draw: 1.2 A at 5 V DC, 14 mA at 24 V DC.
  • Weight: Approximately 0.32 kg (0.71 lb).

Technical Specifications

Specification Details
User Memory 2 MB battery-backed RAM
Max I/O Points 128,000 total (digital and analog)
Analog I/O Capacity 4,000 points max
Communication RS-232 serial port, multiple protocols
Program Capacity 32 tasks; 100 programs/task
Scan Time 0.08 ms per K
Operating Temperature 0 to 60°C (32 to 140°F)
Weight 0.32 kg (0.71 lb)
Backplane Current Draw 1.2 A at 5 V DC, 14 mA at 24 V DC
Slot Width 1
Compatible Chassis 1756-A4, A7, A10, A13, A17 series

Applications / Use Cases

The 1756-L61 processor module is commonly used in a wide range of automation applications that require fast processing, large I/O capacity, and reliable communications including manufacturing, packaging, process control, and material handling. It offers robust performance in demanding environments with high scalability.

1756-L61B

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    positive reviews

  • LESS THAN

    1%

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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