Allen-Bradley 1747-L532 SLC 500 Processor

Name: Allen-Bradley 1747-L532 SLC 500 Processor
Brand: Allen-Bradley
SKU: 1747-L532
Price: 149.99 USD
Availability: InStock

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.

SLC 5/03 PLC Processor · 16K Words User Memory · channel 0 RS-232 (DF1 / DH-485 / ASCII) and channel 1 DH-485

Allen-Bradley 1747-L532 SLC 5/03 PLC Processor (1 of 8)

Actual NJT inventory photos

Price

$149.99USD

Used units available

Request Repair Quote

Part Number	1747-L532
Description	SLC 5/03 PLC Processor. In stock in used condition.
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 ($22.50) 3 years +25% of product price ($37.50) View full warranty policy
Returns	90-day free returns. View return policy
Exchange	Send us your defective 1747-L532 after your purchase for a 10% core credit ($15). We also purchase old or damaged parts outright.

Replacement Options for 1747-L532

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

Allen-Bradley 1747-L532 SLC 500 Processor – Used

Allen-Bradley 1747-L532 SLC 500 Processor – Used, second photo

Allen Bradley 1747-L532 SLC 500 5/03 CPU Processor 16K Memory 1747L532 Module

$149.99 USDIn-stock match

Condition: Used

1 in stockView details

Variants

Part NumberConditionSeriesQtyPrice

1747-L532$149.99

Used · 1 in stock

1747-L532Used—1$149.99 USD

Availability

1 unit in stock

Part Number Decoder

SLC 5/03 PLC Processor

1747L532

1747: BulletinSLC 500: Allen-Bradley's small/medium modular PLC family. Bulletin 1747 covers processors, communication modules and accessories; chassis, power supplies and I/O modules are bulletin 1746.
L: Module typeProcessor (CPU) module: occupies slot 0 of the SLC 500 chassis.
5: FamilySLC 500 modular processor.
3: Processor typeSLC 5/03: channel 0 RS-232 (DF1 / DH-485 / ASCII) and channel 1 DH-485.
2: Memory size16K words of 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

No series in stock today; request a series above.

Series A shipped with OS300, Series B with OS301 and Series C with OS302; earlier units take the 1747-OS302 upgrade cartridge.

Series notes: Same slot and wiring. A later series runs an earlier program; match or exceed the OS/FRN of the unit being replaced.

Intended Use

Intended for legacy modular machine and small-process control applications. SLC 500 processors still run packaging lines, conveyors, water and wastewater stations, HVAC plants and OEM machinery installed through the 1990s and 2000s. Most demand today is replacing a failed processor like-for-like so the existing rack, I/O and RSLogix 500 program stay in place.

Migration Path

Rockwell Automation has discontinued SLC 500 processors; replacement units come from the surplus market. Published successor for the SLC 500 modular processor: CompactLogix 5380 (5069-L3xxER) with Compact 5000 I/O, or CompactLogix 5370 (1769-L3xER) to reuse 1769 Compact I/O.

A 1747-AENTR EtherNet/IP adapter in slot 0 of the existing 1746 chassis lets the new CompactLogix own the installed I/O, so the processor can be replaced first and the I/O later.
When the I/O is converted, 1492-CM1746 conversion modules and pre-wired cables move the 1746 field wiring to Compact 5000 or 1769 I/O without re-terminating field devices.
Translate the RSLogix 500 program with the Studio 5000 Logix Designer project translation tool; 1756-RM085 lists the SLC instructions and file-based addressing that need manual rework.
DH-485 and DH+ devices (PanelView Standard, other SLCs) need a gateway or their own migration, since CompactLogix is EtherNet/IP only.

A like-for-like replacement or a repair keeps the existing program, wiring and panel layout; a migration is a project. Both are listed on this page so the choice can be made on lead time and budget.

Physical Data

Weight and DimensionsEst. weight0.82 lb (0.37 kg)H × W × D5.7 × 1.4 × 5.7 in. (145 × 35 × 145 mm)

Estimated Weight	0.37 kg (0.82 lb) Estimated from the product dimensions and typical density for this product type
Dimensions (H × W × D)	145 × 35 × 145 mm (5.7 × 1.4 × 5.7 in.) Single-slot SLC 500 module envelope; 35 mm slot pitch
Shipping Weight	0.90 kg (1.98 lb) Estimated: unit weight plus box and packing material; bills as 2 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 dimensions are typical manufacturer-published values and may differ by series or option. Unit weight is an estimate; no published figure is available for this catalog number. Shipping box and weight are estimates for freight planning; the packed unit may ship in a different box.

Similar Part Numbers

1747-L542 Processor type: SLC 5/04
1747-L552 Processor type: SLC 5/05
1747-L531 Memory size: 8K words of user memory
1747-L551 Processor type: SLC 5/05; Memory size: 16K words of user memory
1747-L553 Processor type: SLC 5/05; Memory size: 64K words of user memory

Allen Bradley Information

Technical Specifications11 parameters from manufacturer-published specifications

Lifecycle	Discontinued Verify current status with the manufacturer.
Processor family	SLC 5/03
User memory	16 K words
On-board communication	DH-485 and RS-232 (DF1, DH-485, ASCII)
Digital I/O, max	4,096 (8,192 addressable)
Local chassis / slots, max	3 chassis / 30 slots
Programming instructions	107
Typical scan time	1 ms per K of program
Bit execution (XIC)	0.44 µs
Memory module	Optional flash EEPROM
Backplane current	500 mA @ 5V DC; 175 mA @ 24V DC
Programming software	RSLogix 500

Typical manufacturer-published values for this catalog number; confirm against the current manufacturer documentation before specifying.

Still have questions?

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

Frequently Asked Questions

What is the 1747-L532?

The Allen-Bradley 1747-L532 is an SLC 5/03 PLC Processor, 16K Words User Memory; channel 0 RS-232 (DF1 / DH-485 / ASCII) and channel 1 DH-485.

What condition is it in?

NJT Automation currently has 1 unit of the 1747-L532 in stock in used condition. Each listing states its own condition and series. Used means a unit removed from service and sold without refurbishment. Cosmetic condition, any functional testing performed, and the warranty term are stated on each unit’s own listing. From the listing: This item is in good working condition with some signs of use and is fully functional. It comes with 90-day free returns and a 1 year NJT warranty.

How much does it cost?

At NJT Automation, 7 1747-L532 SLC 5/03 PLC Processors have sold since 2024 for $110 – $800, with a median of $190. Right now 1 unit is in stock at $150, depending on condition and series.

When does this part ship?

1 unit of the 1747-L532 SLC 5/03 PLC Processor are on the shelf in Milwaukee, WI, priced from $149.99. Orders before 5:00 PM Central on a business day ship the same day; next-day air is available at checkout.

How much memory does it have?

16K words of user memory.