Allen-Bradley 1747-L524 SLC 500 Processor
The Allen-Bradley 1747-L524 is an SLC 5/02 processor with 4K words of user memory. NJT Automation sources the 1747-L524 on request; send the part number for a replacement or repair quote.
Quote required. Request a quote below for pricing and delivery.

| Price | On Request Availability and condition determine final quote. |
| Description | SLC 5/02 processor. |
| Shipping | UPS Ground included | Next-Day Air and Worldwide Shipping available at checkout |
| Warranty | 1-year full-function warranty provided by NJT Automation.Warranty detailsThe original Allen-Bradley warranty does not apply to pre-owned units. Full warranty coverage is provided directly by NJT Automation. If you have any issues we can usually swap your unit next-day air (based on inventory)-no waiting weeks for a repair. Included: 1 Year +1 Year: +15% of product price +2 Years: +25% of product price |
| Returns | 90-day free returns on all purchases.View return policy |
| Exchange | We will purchase your old or damaged parts. |
| Availability | Available Level 1This part is available through our Level 1 supplier network. Request a quote to confirm quantity, price, and next-day shipping options. |
Inventory Level 1 RFQ | Level 1 inventory is available within our supplier network. We confirm prices, quantities, and next-day shipping options with the quote. We've built relationships with trusted suppliers across the United States and carefully screen out vendors that sell counterfeits, low-quality used equipment, or repackaged items marketed as new. We specialize in hard-to-find Allen Bradley components, offering top-quality replacement parts at a reasonable price, backed by reliable service and warranty. |
| Repairs | 1747-L524 Mail-In Repair Service |
How the Process Works: |
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What We Offer | We source genuine parts from trusted U.S. channels and stand behind what we sell.
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Part Number Decoder | SLC 5/02 processor 1747L524 SLC 5/02 processor with 4K words of user memory; one DH-485 port; adds indirect addressing, PID and higher-speed scan over the 5/01.
Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here. |
Similar Part Numbers |
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Allen Bradley Information | Technical Description Allen-Bradley SLC 500 Processor Unit 1747-L524 Key Features/Specifications: 16K memory, supports up to 4096 I/O points, and includes a built-in RS-232 port Lifecycle: Discontinued — verify current status with the manufacturer |
Alternate Part Numbers | 1747L524 |
| Category | SLC 500 |
| Part Number | 1747-L524 |
| Manufacturer | Allen-Bradley |
Can the 1747-L524 be repaired?
Yes. NJT Automation offers mail-in repair for the 1747-L524, including diagnostic evaluation, component-level repair, and functional testing.
One vendor. One warranty. NJT manages the entire process.
- 1-year full-function NJT warranty, with 2- and 3-year options available
- Rush service available for production-critical repairs
- No evaluation or diagnostic charges
- No repair, no charge
- Pre-paid UPS shipping label provided for sending your unit in
- $650 minimum repair charge, shipping included both ways
Looking for another option? For lower-cost repairs or if you prefer to work directly with an independent repair specialist, compare bids through RepairMode. RepairMode providers operate independently and set their own pricing and warranty terms.
Find a PLC repair specialiston RepairMode.com ↗Common 1747-L524 failures
Failure patterns we regularly see on SLC 5/02 processor hardware like the 1747-L524:
- Program lost on power cycle: BATT LED on, battery (1747-BA) depleted
- FLT LED on and the processor will not go to RUN (major fault that returns after clearing)
- Channel 0 RS-232 port damaged by a hot-plugged or miswired programming cable
- DH+ channel 1 dead on a 5/04 (transceiver failure on the 3-pin blue-hose port)
- Ethernet port failure or dropped connections on a 5/05
- Keyswitch worn: processor will not stay in RUN or REM
- Backplane connector wear causing intermittent rack faults
Why Choose Our Repair Service?
- ■ Rush turnaround available, with 24-hour emergency service on some models
- ■ 1-year full-function warranty, with 2- and 3-year extended options
- ■ No evaluation or diagnostic charges
- ■ Free UPS shipping label available
- ■ "Unrepairable" is not an option
- ■ Thousands of successful Allen-Bradley restorations
Request a Repair Quote
Ready to repair your 1747-L524? Request a repair quote below. For immediate assistance, text photos of your faulty unit and a description of the symptoms to (414) 331-5954.
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