Allen-Bradley

Allen-Bradley 1756-L1M3 ControlLogix 5550 Controller Processor

SKU 1756-L1M3

Disponibile
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Allen-Bradley
  • Product No.: 1756-L1M3
  • Origin United States
  • Product Type: Controller Processor
  • Payment: T/T, Western Union
  • Weight: 0.38 kg
  • Dimensions: 14.5 x 11.2 x 3.5 cm
  • Shipping port: Xiamen
  • Warranty: 12 months

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Product Description

Description

The Allen-Bradley 1756-L1M3 is a legacy ControlLogix 5550 controller processor designed for demanding industrial automation and control applications. Built on the scalable ControlLogix platform, this module provides reliable execution of user control programs, handling discrete, analog, motion, and drive control tasks across a unified backplane. It features an open enclosure design and includes 2 MB of onboard expansion memory to accommodate moderate control applications.

As part of the established ControlLogix architecture, the 1756-L1M3 integrates seamlessly into standard 1756 chassis slots, drawing power directly from the backplane. It relies on standard serial communication cabling options, such as the 1756-CP3 or 1747-CP3 cables, for initial configuration and programming access. The controller requires the 1756-BA1 lithium battery for maintaining volatile memory during power loss conditions.

Features

  • ControlLogix 5550 processor architecture for multi-discipline control applications
  • Equipped with 2 MB of expansion memory for application logic and data storage
  • Operates natively within standard 1756 ControlLogix chassis environments
  • Compatible with 1756-CP3 and 1747-CP3 serial communication and programming cables
  • Requires 1756-BA1 lithium battery for backup power retention
  • Standard backplane power consumption profile: 120 mA at 5V DC and 2 mA at 24V DC

Applications

  • Discrete manufacturing and assembly lines
  • Continuous process control and monitoring systems
  • Batch processing in chemical and pharmaceutical plants
  • Power generation and distribution automation
  • Legacy system maintenance and spare parts replacement

Technical Specifications

Parameter Specification
Manufacturer Allen-Bradley / Rockwell Automation
Product Type ControlLogix Controller Processor
Exact Model 1756-L1M3
Product Family ControlLogix 5550
Memory Capacity 2 MB
Backplane Current Draw 120 mA @ 5V DC, 2 mA @ 24V DC
Power Dissipation 4.1 W max. @ 60 degC (140 degF)
Operating Temperature 0 to 60 degC (32 to 140 degF)
Compatible Battery 1756-BA1 lithium battery
Programming Cables 1756-CP3, 1747-CP3
Enclosure Type Open
Country of Origin United States

Connections / Interfaces

The 1756-L1M3 features a front-accessible serial communication port used for connection to programming terminals or configuration devices. It installs directly into any available slot in a 1756 ControlLogix chassis, where it interfaces with the system backplane for power and communication with other I/O and specialty modules.

Installation Guidelines

Ensure power to the 1756 ControlLogix chassis is turned off before inserting or removing the 1756-L1M3 processor module. Slide the module smoothly into the designated chassis slot, making sure the backplane connectors align properly, and secure it using the top and bottom retaining screws. Connect the appropriate programming cable to the front port for configuration, and ensure the 1756-BA1 backup battery is securely installed if memory retention during power cycles is required.

Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
FAQ
What platform does the Allen-Bradley 1756-L1M3 belong to?
The 1756-L1M3 belongs to the Allen-Bradley ControlLogix 5550 controller platform and mounts into a standard 1756 chassis.
How much memory does the 1756-L1M3 processor have?
This controller processor includes 2 MB of expansion memory for user logic and data storage.
What battery is required for the 1756-L1M3?
The 1756-BA1 lithium battery is the designated replacement and backup battery compatible with this processor.
What cables can be used to program this controller?
Compatible programming and communication cables include the Allen-Bradley 1756-CP3 and 1747-CP3 serial cables.
What is the power dissipation of the 1756-L1M3?
The maximum power dissipation is 4.1W at 60 degC (140 degF).
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1756-L1M3

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Allen-Bradley 1756-L1M3 ControlLogix 5550 Controller Processor

Only 12 item(s) left in stock
  • Manufacturer: Allen-Bradley

  • Product No.: 1756-L1M3

  • Country of origin:United States

  • Product Type: Controller Processor

  • Payment: T/T, Western Union

  • Weight: 380g

  • Dimensions: 14.5 x 11.2 x 3.5 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Description

Description

The Allen-Bradley 1756-L1M3 is a legacy ControlLogix 5550 controller processor designed for demanding industrial automation and control applications. Built on the scalable ControlLogix platform, this module provides reliable execution of user control programs, handling discrete, analog, motion, and drive control tasks across a unified backplane. It features an open enclosure design and includes 2 MB of onboard expansion memory to accommodate moderate control applications.

As part of the established ControlLogix architecture, the 1756-L1M3 integrates seamlessly into standard 1756 chassis slots, drawing power directly from the backplane. It relies on standard serial communication cabling options, such as the 1756-CP3 or 1747-CP3 cables, for initial configuration and programming access. The controller requires the 1756-BA1 lithium battery for maintaining volatile memory during power loss conditions.

Features

  • ControlLogix 5550 processor architecture for multi-discipline control applications
  • Equipped with 2 MB of expansion memory for application logic and data storage
  • Operates natively within standard 1756 ControlLogix chassis environments
  • Compatible with 1756-CP3 and 1747-CP3 serial communication and programming cables
  • Requires 1756-BA1 lithium battery for backup power retention
  • Standard backplane power consumption profile: 120 mA at 5V DC and 2 mA at 24V DC

Applications

  • Discrete manufacturing and assembly lines
  • Continuous process control and monitoring systems
  • Batch processing in chemical and pharmaceutical plants
  • Power generation and distribution automation
  • Legacy system maintenance and spare parts replacement

Technical Specifications

Parameter Specification
Manufacturer Allen-Bradley / Rockwell Automation
Product Type ControlLogix Controller Processor
Exact Model 1756-L1M3
Product Family ControlLogix 5550
Memory Capacity 2 MB
Backplane Current Draw 120 mA @ 5V DC, 2 mA @ 24V DC
Power Dissipation 4.1 W max. @ 60 degC (140 degF)
Operating Temperature 0 to 60 degC (32 to 140 degF)
Compatible Battery 1756-BA1 lithium battery
Programming Cables 1756-CP3, 1747-CP3
Enclosure Type Open
Country of Origin United States

Connections / Interfaces

The 1756-L1M3 features a front-accessible serial communication port used for connection to programming terminals or configuration devices. It installs directly into any available slot in a 1756 ControlLogix chassis, where it interfaces with the system backplane for power and communication with other I/O and specialty modules.

Installation Guidelines

Ensure power to the 1756 ControlLogix chassis is turned off before inserting or removing the 1756-L1M3 processor module. Slide the module smoothly into the designated chassis slot, making sure the backplane connectors align properly, and secure it using the top and bottom retaining screws. Connect the appropriate programming cable to the front port for configuration, and ensure the 1756-BA1 backup battery is securely installed if memory retention during power cycles is required.

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What platform does the Allen-Bradley 1756-L1M3 belong to?

The 1756-L1M3 belongs to the Allen-Bradley ControlLogix 5550 controller platform and mounts into a standard 1756 chassis.

How much memory does the 1756-L1M3 processor have?

This controller processor includes 2 MB of expansion memory for user logic and data storage.

What battery is required for the 1756-L1M3?

The 1756-BA1 lithium battery is the designated replacement and backup battery compatible with this processor.

What cables can be used to program this controller?

Compatible programming and communication cables include the Allen-Bradley 1756-CP3 and 1747-CP3 serial cables.

What is the power dissipation of the 1756-L1M3?

The maximum power dissipation is 4.1W at 60 degC (140 degF).

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

Technical knowledge

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