Allen-Bradley 1756-L1M3 ControlLogix 5550 Controller Processor

SKU 1756-L1M3

In stock

12-month warranty
Free returns within 30 days

Manufacturer: Allen-Bradley
Product No.: 1756-L1M3
Country of origin:United States
Product Type: Controller Processor
Payment: T/T, Western Union
Weight: 350g
Dimensions: 14.5 x 11.2 x 3.5 cm
Shipping port: Xiamen
Warranty: 12 months

Description

The Allen-Bradley 1756-L1M3 is a legacy ControlLogix 5550 controller processor designed to execute complex discrete, motion, drive, and process control applications. Occupying a single slot within a standard ControlLogix chassis, this processor coordinates multi-tasking execution across the backplane for demanding industrial automation environments. It features 2MB of onboard memory to support user logic, data structures, and system configuration.

As part of the ControlLogix architecture, the 1756-L1M3 communicates seamlessly across ControlNet, DeviceNet, Ethernet, and DH+ networks via appropriate communication interface modules. It requires the 1756-BA1 lithium battery for volatile memory backup during power loss and utilizes standard serial cabling such as the 1756-CP3 for direct programming and diagnostic access.

Features

2MB onboard user memory capacity for logic execution and tag storage
Single-slot chassis installation within any standard 1756 ControlLogix backplane
Supports multi-tasking continuous, event-driven, and periodic task execution
Compatible with RSLogix 5000 programming environment for configuration and logic development
Communicates via chassis-resident bridge modules across multiple industrial networks

Applications

Central processing for large-scale discrete and process manufacturing lines
Multi-axis coordinated motion control coordination via backplane communication
Redundant and distributed industrial control system architecture integration
Data acquisition and supervisory control interface management across plant networks

Technical Specifications

Specification Parameter	Technical Value
Brand	Allen-Bradley
Product Type	ControlLogix Controller Processor
Catalog Number / SKU	1756-L1M3
Series	ControlLogix (5550)
User Memory	2 MB
Chassis Slot Occupancy	1 Slot
Backplane Current Draw (5V DC)	1.2 A
Backplane Current Draw (24V DC)	3 mA
Power Dissipation	3.5 W max
Operating Temperature	0 to 60 degC (32 to 140 degF)
Communication Ports	RS-232 Serial Port (Communication / Programming)
Replacement Battery	1756-BA1
Enclosure Type	Open-style (None)
Country of Origin	United States

Compliance and Certifications

c-UL-us Listed Industrial Control Equipment
CE Compliant for applicable directives
C-Tick compliant for Australian market

FAQ

What programming software is required for the Allen-Bradley 1756-L1M3?

The 1756-L1M3 is programmed and configured using RSLogix 5000 software.

How many chassis slots does the 1756-L1M3 occupy?

The controller occupies a single slot (1 slot) in any standard 1756 ControlLogix chassis.

What replacement battery is used with this processor?

The compatible replacement battery for memory backup is the Allen-Bradley 1756-BA1 lithium battery.

What is the standard backplane current draw for the 1756-L1M3?

The module draws approximately 1.2 A at 5V DC and 3 mA at 24V DC from the ControlLogix backplane.

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Shipping & Returns

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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.

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Quantity

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Model Number / Title	Condition	Availability	Action
Allen-Bradley 1785-L40B PLC-5/40 Controller Processor	Original New	In Stock	View Details
Allen-Bradley 1756-L1M1 ControlLogix 5550 Controller Processor	Original New	In Stock	View Details
Allen-Bradley 1756-L55A ControlLogix 5555 Controller Module	Original New	In Stock	View Details

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

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