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Allen-Bradley 1756-L75 ControlLogix Processor 32 MB

In stock: 1 unit in Milwaukee, WI. Physically stocked and ready to ship or available for local pickup. Includes a 1-year full-function warranty.

32 MB ControlLogix 5570 controller

Price

$2,299.99USD

Unused surplus units available

Request Repair QuoteEstimated $1,440.00
Part Number1756-L75
DescriptionControlLogix 5570 controller, 32 MB. In stock in unused surplus condition, Series B.
Shipping
Ships same or next business day UPS Ground included | Next-Day Air and Worldwide Shipping available at checkout
Pickup
Free local pickup at 2122 N Prospect Ave. Call ahead at (414) 331-5954.
Warranty
1-year full-function warranty provided by NJT Automation.
Warranty details
Included
1 year, full-function
2 years
+15% of product price ($345.00)
3 years
+25% of product price ($575.00)
View full warranty policy
Returns
90-day free returns. View return policy
Exchange

Send us your defective 1756-L75 after your purchase for a 10% core credit ($230). We also purchase old or damaged parts outright.

Replacement Options for 1756-L75

Pick a condition and series below. UPS Ground shipping included.

Allen Bradley 1756-L75 /B ControlLogix Logix5575 Processor 32MB 1756L75 Sealed

$2,299.99 USDIn-stock match

Condition: New surplus (sealed)

Series B

1 in stockView details
Variants
Part NumberConditionSeriesQtyPrice
1756-L75 /B$2,299.99
New surplus (sealed) · Series B · 1 in stock
1756-L75 /BNew surplus (sealed)Series B1$2,299.99 USD

1756-L75

Refurbished — pick series, then request a quote

Request Quote
1756-L75Refurbished—Request Quote
Availability
1 unit in stock
Repairs

1756-L75 Mail-In Repair Service

Estimated: $1,440.00

Part Number Decoder

ControlLogix 5570 controller
1756L75
1756
BulletinControlLogix: Rockwell Automation's chassis-based control platform (controllers, I/O, communication modules, power supplies and chassis).
L
Module typeLogix controller (CPU module).
7
GenerationControlLogix 5570: Logix5570 series (USB programming port, SD card, energy storage module).
5
Memory size32 MB of standard user memory.
Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here.

Series & Revisions

Series B in stock; other series on request.

All series use the 1756-ESMCAP energy-storage module and a 1784-SD1 / SD2 card; no battery.

Series notes: Studio 5000 keys on catalog number and firmware revision, not series.

Intended Use

Built for plant-wide discrete, process, and motion control applications. ControlLogix controllers run high I/O-count machines, batch and continuous process lines, and coordinated multi-axis motion from a single chassis, with redundancy and plant-network connectivity when the application calls for it. Typical homes are automotive and tire plants, food and beverage lines, water and wastewater, oil and gas skids, and large packaging systems.

Physical Data

Weight and DimensionsWeight0.87 lb (0.39 kg)H × W × D5.7 × 1.4 × 5.7 in. (145 × 35 × 145 mm)
Weight0.39 kg (0.87 lb)
Typical unit weight
Dimensions (H × W × D)145 × 35 × 145 mm (5.7 × 1.4 × 5.7 in.)
Single-slot controller module
Shipping Weight0.92 kg (2.03 lb)
Estimated: unit weight plus box and packing material; bills as 3 lb
Shipping Box (L × W × H)12 × 12 × 8 in. (305 × 305 × 203 mm)
Smallest standard box fitting the product with 3 in. cushioning per side
Product weight and dimensions are typical manufacturer-published values and may differ by series or option. Shipping box and weight are estimates for freight planning; the packed unit may ship in a different box.

Similar Part Numbers

  • 1756-L73 Memory size: 8 MB of standard user memory
CategoryControlLogix
UPC / GTIN0612598876051
Part Number1756-L75
ManufacturerAllen-Bradley
Previously sold 1756-L751 sold

NJT Automation has supplied and shipped one 1756-L75 ControlLogix 5570 controller in 2024; these listings are sold and the in-stock options above are ready to ship.

Sold
1 in 2024
Series
B × 1
Allen-Bradley 1756-L75 New surplus (sealed) - previously sold by NJT AutomationSold

2021 Allen Bradley 1756-L75 /B Processor 32MB - New Surplus (sealed)

$3,499.99 USD

New surplus (sealed)

Request Quote

Can the 1756-L75 be repaired?

Yes. NJT Automation repairs the 1756-L75 by mail-in: diagnostic evaluation, component-level repair and a functional test, backed by a 1-year full-function warranty.

NJT managed repair. No evaluation fee; no repair, no charge. Prepaid UPS label both ways, $650 minimum, rush available. 1-year full-function warranty included, 2- and 3-year options.

Get a repair quoteor text photos and symptoms to (414) 331-5954

Compare quotes from independent repair technicians. Post your repair on RepairMode to receive competitive bids from experienced technicians. Each technician sets their own pricing and warranty.

Find a PLC repair specialiston RepairMode.com ↗

Common failures

Failure patterns we regularly see on ControlLogix 5570 controller hardware like the 1756-L75:

  • Backplane communication faults from bent chassis pins after repeated module swaps
  • Scrolling status display blank or unreadable
  • Front USB port failure: Studio 5000 will not connect over USB
  • SD card corruption preventing the stored project from loading at power-up
  • Solid red OK LED (nonrecoverable major fault) that returns after clearing

Photos by NJT Automation; test videos from NJT or network repair technicians.

Still have questions?

Find answers to shipping, warranties, repairs, and more.

The Allen-Bradley 1756-L75 is a 32 MB ControlLogix 5570 controller.
NJT Automation currently has 1 unit of the 1756-L75 in stock in unused surplus condition (Series B). Each listing states its own condition and series. Factory-sealed, unused surplus stock in original packaging. May carry an older date code or series than current OEM production.
1 unit of the 1756-L75 ControlLogix 5570 controller are on the shelf in Milwaukee, WI, priced from $2,299.99. Orders before 5:00 PM Central on a business day ship the same day; next-day air is available at checkout.
32 MB of standard user memory.
Disclaimer

Trademarks & Compatibility

All trademarks, service marks, trade names, brand names, and logos displayed on this website are the property of their respective owners. Any references to manufacturers, products, or brands are for identification and compatibility purposes only and do not imply any affiliation with, endorsement by, sponsorship from, or authorization by the respective trademark owners.

Independent Supplier

NJT Automation is an independent supplier of surplus, refurbished, and pre-owned industrial automation equipment. Unless expressly stated otherwise, NJT Automation is not an authorized distributor, dealer, representative, or affiliate of the original equipment manufacturer (OEM) for any products offered on this website.

Product Condition & Warranty

Products sold by NJT Automation may be surplus inventory, discontinued models, older series, or units with earlier manufacturing date codes than those currently available from the OEM or its authorized distribution network. As NJT Automation is not an authorized distributor, manufacturer warranties, support programs, and other OEM services may not apply. Any warranty provided is solely that of NJT Automation, where applicable.

Firmware & Software Licensing

Certain programmable logic controllers (PLCs), drives, HMIs, and other electronic products may require firmware to operate. While some products may include firmware, NJT Automation makes no representations or warranties regarding whether firmware is installed, the firmware version or revision level, its compatibility with your application, or its licensing status.

NJT Automation does not provide, obtain, transfer, or license firmware on behalf of customers. We make no representation regarding your ability or legal right to obtain, download, install, or use firmware from the OEM, its authorized distributors, or any other source. It is the customer's sole responsibility to ensure compliance with all applicable End User License Agreements (EULAs), software licenses, intellectual property rights, and other terms governing the acquisition, installation, and use of firmware.