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Allen Bradley 1756-L55M12 ControlLogix 5555 CPU

Allen Bradley 1756-L55M12 ControlLogix 5555 CPU with 12MB memory.

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ManufacturerAllen Bradley

Part number1756-L55M12

Processor Type ControlLogix 5555

Memory 12MB (Program & Data)

I/O Capacity 128K words

Communication Ports Serial, Ethernet/IP

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Veteran-owned

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High-performance processing 12MB memory Supports complex logic Scalable I/O capacity Multiple communication options ControlLogix chassis compatibility

Product description

The Allen Bradley 1756-L55M12 is a ControlLogix 5555 series controller with 12MB of memory for user program and data. This high-performance processor offers advanced capabilities for complex automation tasks, including motion control, process control, and high-speed I/O management. It is designed for demanding applications requiring significant logic processing power.

This controller is a cornerstone in many industries, including automotive manufacturing, complex machinery, pharmaceuticals, and material handling, where robust control, scalability, and high-speed processing are essential for productivity and reliability.

Stanlo Automation, a veteran-owned surplus industrial parts distributor, provides the 1756-L55M12. We offer tested and reliable ControlLogix components, enabling you to maintain or upgrade your automation systems with confidence and at a competitive price.

Technical specifications

Processor Type	ControlLogix 5555
Memory	12MB (Program & Data)
I/O Capacity	128K words
Communication Ports	Serial, Ethernet/IP
Backplane Power	5V DC @ 1.5A

Common applications

Complex Machine Control

Process Automation

Motion Control

Batch Control

High-Speed Data Acquisition

Industrial Automation

Compatible systems

ControlLogix Chassis (all types) RSLogix 5000 software EtherNet/IP DeviceNet ControlNet

Also known as

Allen Bradley ControlLogix 5555 CPU AB 1756-L55M12 L55M12 Controller

Replaces / compatible with

Direct replacement for other ControlLogix 5555 series CPUs with similar memory configurations. Compatible with all ControlLogix chassis.

Technical note

Expert tip

Requires a compatible ControlLogix chassis (e.g., 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17) and a power supply module. Ensure firmware compatibility.

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Frequently asked questions

What is the memory capacity of the Allen Bradley 1756-L55M12 ControlLogix processor?

The Allen Bradley 1756-L55M12 ControlLogix processor is equipped with 12MB of memory for program and data storage, offering substantial capacity for complex automation tasks.