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Allen-Bradley 1747-ASB SLC 500 Remote I/O Adapter

Allen-Bradley 1747-ASB Remote I/O adapter module: puts an SLC chassis of 1746 I/O on a Remote I/O network as an adapter (slave). NJT Automation sources the 1747-ASB on request; send the part number for a replacement or repair quote.

Quote required. Request a quote below for pricing and delivery.

Allen-Bradley 1747-ASB SLC 500 Remote I/O adapter – front view
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Part Number1747-ASB
Price
On Request
Availability and condition determine final quote.
DescriptionSLC 500 Remote I/O adapter.
Shipping
UPS Ground included | Next-Day Air and Worldwide Shipping available at checkout
Warranty
1-year full-function warranty provided by NJT Automation.
Warranty details
Included
1 year, full-function
2 years
+15% of product price
3 years
+25% of product price
View full warranty policy
Returns
90-day free returns. View return policy
Exchange

Send us your defective 1747-ASB after your purchase for a 10% core credit. We also purchase old or damaged parts outright.

Availability
Available Level 1

This 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 parts come from vetted US suppliers we have worked with for years. Each unit is checked before it ships, so counterfeits, repackaged items sold as new, and worn-out equipment do not reach you. Every part carries the same NJT warranty and return policy as our own stock.

Request QuoteLearn more about Inventory Levels
Repairs

1747-ASB Mail-In Repair Service

How the Process Works:

  1. Submit Your RFQ: Complete the request-for-quote (RFQ) form with your exact requirements.
  2. Receive a Quote: We respond ASAP - within 1 hour during business hours.
  3. Approve and Pay: Agree to the quoted price, and we will issue an invoice payable via credit card or your preferred method.
  4. Direct Shipping: Our normal shipping time is 3-5 business days, during which we thoroughly inspect and certify items to meet our high standards. If you request next-day air delivery, the item will be sent directly to you and arrive the following business day. Please note: These items are NOT available for local pickup at NJT Automation's location.

What We Offer

We source genuine parts from trusted U.S. channels and stand behind what we sell.
  • Our network has millions of parts ready to be delivered now.
  • Complete Transparency: Clear information on item availability.
  • Well-vetted components from trusted suppliers sourced from the USA.
  • Technical Support: Assistance, troubleshooting and hardware repairs.
  • Minimal Markup: The best sourcing service at a minimal cost.
  • Quick Delivery: Fast access to the parts you need to get your machines back up and running.
  • Dropship available • No branding on packaging

Part Number Decoder

SLC 500 Remote I/O adapter
1747ASB

Remote I/O adapter module: puts an SLC chassis of 1746 I/O on a Remote I/O network as an adapter (slave).

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.
ASB
Catalog codeRemote I/O adapter module: puts an SLC chassis of 1746 I/O on a Remote I/O network as an adapter (slave).
Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here.

Datasheet

Datasheet available for download
Generated from product specifications; not an official Allen-Bradley datasheet. For an official datasheet, contact Allen-Bradley or an authorized distributor.

Allen Bradley Information

Lifecycle: Discontinued. Verify current status with the manufacturer.

Alternate Part Numbers

1747ASB
CategorySLC 500
Part Number1747-ASB
ManufacturerAllen-Bradley

Can the 1747-ASB be repaired?

Yes. NJT Automation offers mail-in repair for the 1747-ASB, including diagnostic evaluation, component-level repair, and functional testing.

NJT Managed Repair

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
  • "Unrepairable" is not an option
  • Pre-paid UPS shipping label provided for sending your unit in
  • $650 minimum repair charge, shipping included both ways
Get an NJT Repair Quote

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-ASB failures

Failure patterns we regularly see on SLC 500 Remote I/O adapter hardware like the 1747-ASB:

  • Channel driver failure: DH-485 / DH+ / RIO port dead or intermittent with good cabling
  • Module will not come online after a power event (configuration lost or fault LED on)
  • Isolation section damaged on AIC / UIC converters after a ground-loop event
  • Scanner (SN / SDN) shows adapter or node faults that follow the module, not the network
  • Backplane connector wear causing rack faults

Repair or replace?

ReplaceReplacement SLC 500 Remote I/O adapter units are usually surplus. Swap the 1747-ASB when the network is down and a tested unit is available. Check that the series and firmware match the rest of the network. A replacement 1747-ASB is sourced on request, so compare its lead time with a repair before deciding.
RepairRepair is often the better value on the 1747-ASB: legacy network hardware fails at the connectors, drivers and power section rather than the logic, and a repaired unit keeps a known-good module on an aging network without a compatibility risk. The two 1747-ASB symptoms we see most often are “Channel driver failure” and “Module will not come online after a power event”. If a replacement is already installed, repairing the failed 1747-ASB gives you a tested spare on the shelf, which is worth more on an older platform where a matching unit can take time to source. Each 1747-ASB we repair goes back function-tested with a 1-year warranty.

Request a Repair Quote

Text photos of the faulty unit and the symptoms to (414) 331-5954.

Start Your Repair Today

All product photos were taken by NJT Automation. Test videos originated from either NJT Automation internally or from repair technicians within our network.

Still have questions?

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

The Allen-Bradley 1747-ASB is a Remote I/O adapter module: puts an SLC chassis of 1746 I/O on a Remote I/O network as an adapter (slave).
The 1747-ASB is available in Used condition. Clean used pull with full functionality. Minimal cosmetic wear and backed by our 1-year warranty.
This 1747-ASB is sourced on request, so sourcing and quote timelines apply. Request a quote and we'll confirm availability and lead time. Many parts can be sourced within a few business days through our Level 1 supplier network.
Yes. UPS Next Day Air is available at checkout for the 1747-ASB SLC 500 Remote I/O adapter. Place your order before 5:00 PM Central on a business day and your in-stock item ships the same day for next-business-day delivery.
Yes. Once your 1747-ASB has been sourced and is ready, free local pickup is available at NJT Automation, 2122 N Prospect Ave, Milwaukee, WI, during business hours.
NJT Automation

NJTAutomation

Industrial Electronics

Supply & Repair, Milwaukee WI

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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.

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