Allen-Bradley 1771-ASB PLC-5

Allen-Bradley 1771-ASB PLC-5. NJT Automation sources the 1771-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 1771-ASB industrial automation module – front view

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Part Number	1771-ASB
Price	On Request Previously sold for $199.99 - $299.99 USDAvailability and condition determine final quote.
Description	Allen-Bradley 1771-ASB PLC-5. Key features: Supports up to 32 I/O modules, operates on a 57.6 kbps or 230.4 kbps communication rate, and provides remote I/O communication for PLC-5 systems.
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 ($37.50) 3 years +25% of product price ($62.50) View full warranty policy
Returns	90-day free returns. View return policy
Exchange	Send us your defective 1771-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.

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Repairs

1771-ASB Mail-In Repair Service

How the Process Works:

Submit Your RFQ: Complete the request-for-quote (RFQ) form with your exact requirements.
Receive a Quote: We respond ASAP - within 1 hour during business hours.
Approve and Pay: Agree to the quoted price, and we will issue an invoice payable via credit card or your preferred method.
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

Physical Data

Weight and DimensionsBox15 × 15 × 15 in.

Shipping Box (L × W × H)	15 × 15 × 15 in. (381 × 381 × 381 mm) Most common box recorded for this catalog number

Shipping box and weight are recorded from previous shipments of this catalog number and are provided for freight planning.

Allen Bradley Information

Allen Bradley 1771-ASB Remote I/O Adapter Module Key Features/Specifications: Supports up to 32 I/O modules, operates on a 57.6 kbps or 230.4 kbps communication rate, and provides remote I/O communication for PLC-5 systems.

Lifecycle: Discontinued. Verify current status with the manufacturer.

Alternate Part Numbers

1771ASB

Previously sold 1771-ASB

2 sold

NJT Automation has supplied and shipped 2 1771-ASB PLC-5s in 2024; request a quote and we will source another from our supplier network.

Sold: 2 in 2024
Price range: $200 – $300
Series: D × 1

1771-ASB PLC-5s have sold for $200 – $300.

Sold

ALLEN BRADLEY 1771-ASB /D SERIES D REMOTE I/O ADAPTER MODULE- Remanufactured

$299.99 USD

Refurbished

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Sold

Allen-Bradley 1771-ASB Ser E 1771-ASB/E PLC-5 Remote I/O Adapter Module

$199.99 USD

Used

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Can the 1771-ASB be repaired?

Yes. NJT Automation offers mail-in repair for the 1771-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 1771-ASB failures

Failure patterns we regularly see on 1771 I/O adapter / scanner hardware like the 1771-ASB:

Adapter drops off Remote I/O intermittently: failed channel transceiver with good cabling and termination
ADAPTER FAULT / I/O RACK FAULT LEDs at power-up
Rack address / baud-rate switches worn, causing duplicate-rack faults
ControlNet channel A / B transceiver failure on ACN15 adapters
Backplane connector wear

Repair or replace?

ReplaceReplacement PLC-5 units are usually surplus. Swap the 1771-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 1771-ASB is sourced on request, so compare its lead time with a repair before deciding.

RepairRepair is often the better value on the 1771-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. Most 1771-ASB units reach our bench with one of two symptoms: “Adapter drops off Remote I/O intermittently” or “ADAPTER FAULT / I/O RACK FAULT LEDs at power-up”. Already swapped it out? Repairing the failed 1771-ASB turns it into a tested spare, and on an older platform that spare can be hard to buy later. Each 1771-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

Related services:All Repair Services

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.

Frequently Asked Questions

What condition is the 1771-ASB in?

The 1771-ASB is available in Unused surplus / Refurbished / Used condition. We can quote this part in unused surplus, refurbished, or used condition depending on availability and your preference. Specify your requirement in the RFQ.

How much does the 1771-ASB cost?

At NJT Automation, 2 1771-ASB PLC-5s have sold in 2024 for $200 – $300. None are in stock at the moment; request a quote for current pricing.

When does this part ship?

This 1771-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.

Can you ship this next-day air?

Yes. UPS Next Day Air is available at checkout for the 1771-ASB. 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.

Can I pick this item up locally?

Yes. Once your 1771-ASB has been sourced and is ready, free local pickup is available at NJT Automation, 2122 N Prospect Ave, Milwaukee, WI, during business hours.