2.5-Year Warranty Free Shipping Same-Day Shipping Charlotte, NC
2.5-Year Warranty · Free Shipping · Same-Day Shipping 980-202-0882 · Charlotte, NC

Allen-Bradley 1756-L71 ControlLogix PLC Controller

Manufacturer: Allen-Bradley
MPN: 1756-L71
UPC/GTIN: 612598876013

$2,779.15

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The 1756-L71 is an Allen-Bradley ControlLogix 5570 controller with 2 MB user memory. Supports Ladder Diagram, Structured Text, Function Block Diagram, and Sequential Function Chart programming. Features USB connectivity, integrated 1 GB SD card slot, and high-speed ControlBus backplane communication.

User Memory 2 MB
Programming LD/ST/FBD/SFC
Connectivity USB, SD card slot (1 GB)
Slot Width 1
Platform ControlLogix 5570 (1756)
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PLC Exchange is not an authorized distributor: Products ship in unopened, original manufacturer-marked packaging. See Original Packaging or Warranty for more information.

SKU: 1756-L71 Categories: ,

Description

Allen-Bradley 1756-L71

The 1756-L71 is an Allen-Bradley ControlLogix 5570 controller with 2 MB user memory. Supports Ladder Diagram, Structured Text, Function Block Diagram, and Sequential Function Chart programming. Features USB connectivity, integrated 1 GB SD card slot, and high-speed ControlBus backplane communication.

Tech Data (1756-TD001)

Module Overview
Catalog Number 1756-L71
Type ControlLogix 5570 Controller
User Memory 2 MB
Programming Languages LD, ST, FBD, SFC
Communication USB, SD card slot
Slot Width 1
Platform ControlLogix 5570 (1756)
Electrical Specifications
Operating Temperature 0…60 °C
Source: All specifications verified against Allen-Bradley ControlLogix product documentation, 2026.

PLC Exchange products ship in their unopened, manufacturer-marked Original Packaging. Because we are not an authorized distributor, we are not legally allowed to claim these items as “New”, “Factory Sealed”, or any other term that may imply such. We have over 10 years of experience working with trusted suppliers to make sure you receive the top-quality hardware you need. Items ship in their original packaging, with the same function and contents as OEM-supplied materials. PLC Exchange is an independent supplier of industrial automation products and is not affiliated with the brand manufacturer or any of its authorized distributors. All warranties are provided directly by PLC Exchange. Trademarks, logos, and brand names referenced are property of their respective owners and are used for descriptive identification only.

Technical Notes for 1756-L71

  • Mounts on standard 35mm DIN rail with direct side-bus connection to Compact 5000 I/O modules.
  • Program using Studio 5000 Logix Designer software (v30 or later recommended).
  • Firmware updates available through ControlFLASH or ControlFLASH Plus.
  • User memory capacity is 2 MB. Consider application size requirements when selecting a controller.
  • All 1756-L71 units sold by PLC Exchange are tested and ship in original factory packaging.
  • For application-specific questions or system compatibility verification, contact PLC Exchange technical support at [email protected] or 980-202-0882.

Alternative Part Numbers & Names for 1756-L71

The 1756-L71 by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:

  • 1756L71
  • Allen Bradley 1756-L71
  • Allen-Bradley 1756-L71
  • 1756 L71
  • 1756/L71
  • ControlLogix 1756-L71

All variations refer to the same Allen-Bradley product. If you are unsure whether this is the correct part for your application, contact our team for assistance.

Additional information

Weight 3 lbs
Dimensions 11 × 11 × 7 in
upc

612598876013

mpn

1756-L71

manufacturer

Allen-Bradley

condition

Original Packaging

warranty

2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery

Dimensions & Weight for 1756-L71

Shipping Dimensions
Weight3 lbs
Length11 in
Width11 in
Height7 in
Box Dimensions (L×W×H)11 × 11 × 7 in

Dimensions shown are for the shipping package. For module-level mechanical dimensions, refer to the manufacturer datasheet.

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Frequently Asked Questions

How much user memory does the 1756-L71 have?

The 1756-L71 has 2 MB of user memory for program and data storage.

What product family does the 1756-L71 belong to?

The 1756-L71 is part of the Allen-Bradley ControlLogix family of industrial automation products.

Where can I find the technical datasheet for the 1756-L71?

The official manufacturer datasheet is available for download on the 1756-L71 product page at PLC Exchange. Look for the Tech Data PDF link in the product description.

What programming languages does the 1756-L71 support?

The 1756-L71 supports: LD/ST/FBD/SFC.

Does the 1756-L71 include a warranty?

Yes. Every 1756-L71 sold by PLC Exchange includes a 2.5-year warranty (30 months, full replacement). Details: https://plcexchange.net/warranty-information/

What is the return policy for the 1756-L71?

PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/

When will my 1756-L71 ship?

In-stock orders placed before 4 PM ET ship the same business day via free UPS Ground. Expedited options (Next Day Air, 2nd Day Air) are available at checkout.

Who manufactures the 1756-L71?

The 1756-L71 is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.

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