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1756-L61 | Allen Bradley ControlLogix 2 MB Memory Controller
1756-L61 | Allen Bradley ControlLogix 2 MB Memory Controller

1756-L61 | Allen Bradley ControlLogix 2 MB Memory Controller

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Availability: In stock; ships in 7 - 10 working days.
Part Number: 1756-L61
USD357.00
Retail Price:USD510.00
You Save:USD153.00(30%)
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Part Number: 1756-L61 
Model: ControlLogix 2 MB Memory Controller
Manufacturer: Allen Bradley
Condition: New & Original in Factory Packing
Factory Warranty: 12 Months

Allen-Bradley 1756-L61 ControlLogix 5561 Processor

The Allen-Bradley 1756-L61 is a ControlLogix 5561 controller designed for large-scale automation and process control applications, providing 2 MB of user memory and 478 KB of I/O memory, and supporting up to 250 controller connections. As a chassis-based controller, it can be installed in any available slot of the 1756 ControlLogix chassis, with compatible chassis including the 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17.

Key Specifications:

  • Memory: 2 MB user memory, 478 KB I/O memory (expandable to 128 MB non-volatile storage using a 1784-CF128 CompactFlash card) 
  • I/O Capacity: Up to 128,000 digital I/O points and 4,000 analog I/O points 
  • Tasks/Programs: Supports up to 32 tasks and 100 programs per task, with event task triggering for responsive applications 
  • Communication: Built-in RS-232 serial port supporting DF1 full/half-duplex, ASCII, DF1 radio modem, Modbus via logic, and DH-485 protocols; also compatible with EtherNet/IP, ControlNet, DeviceNet, and Data Highway Plus via additional modules 
  • Motion Control: Supports removal and insertion under power (RIUP) for enhanced maintainability 
  • Programming: Compatible with Studio 5000 Logix Designer software, supporting ladder logic, structured text, function block diagrams, and sequential function charts

Ideal Applications: 

Well-suited for medium-to-large scale automation across manufacturing, oil and gas, power generation, food and beverage, pharmaceuticals, and water/wastewater treatment industries.


  • Availability: In Stock
  • Lead Time: Ships in 7 - 10 Working Days
  • Shipping Weight: 2 Kg

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