Allen-Bradley 1785-L80B PLC-5 – Repair Service Available

Allen-Bradley 1785-L80B PLC-5. NJT Automation offers mail-in repair for the 1785-L80B with a 1-year warranty; replacement pricing is available on request.

Mail-in repair available now. Returned with a 1-year warranty. Replacement pricing on request.

Allen-Bradley 1785-L80B industrial automation module – front view

Request Replacement Quote Request Repair QuoteEstimated $1,440.00

Part Number	1785-L80B
Price	On Request Previously sold for $2,799.99 USDAvailability and condition determine final quote.
Description	Allen-Bradley 1785-L80B PLC-5. PLC-5/80 Processor, 100K Word SRAM, 3072 Total I/O, 3072 Analog I/O, 4 DH+/Remote I/O Channels.
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 ($420.00) 3 years +25% of product price ($700.00) View full warranty policy
Returns	90-day free returns. View return policy
Exchange	Send us your defective 1785-L80B 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 Quote Learn more about Inventory Levels

Repairs

1785-L80B Mail-In Repair Service

Estimated: $1,440.00

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 DimensionsBox12 × 12 × 12 in.

Shipping Box (L × W × H)	12 × 12 × 12 in. (305 × 305 × 305 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

Technical Description

PLC-5/80 Processor, 100K Word SRAM, 3072 Total I/O, 3072 Analog I/O, 4 DH+/Remote I/O Channels

Alternate Part Numbers

1785L80B, 1785L8OB

Previously sold 1785-L80B

1 sold

NJT Automation has supplied and shipped one 1785-L80B PLC-5 in 2024; request a quote and we will source another from our supplier network.

Sold: 1 in 2024
Price: $2,800

The one 1785-L80B PLC-5 sold in 2024 was used and went for $2,800.

Sold

Allen Bradley 1785-L80B /E PLC 5 Processor Rev S01 - Lightly Used

$2,799.99 USD

Used

Request Quote

Can the 1785-L80B be repaired?

Yes. NJT Automation offers mail-in repair for the 1785-L80B, 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 1785-L80B failures

Failure patterns we regularly see on PLC-5 processor hardware like the 1785-L80B:

DH+ or Remote I/O channel dead: failed channel transceiver on the 3-pin blue-hose port
Keyswitch worn or broken: processor will not stay in RUN or REM
Serial (Channel 0) port damage from hot-plugged programming cables
Memory errors after a chassis power supply brownout
ControlNet channel faults on -C processors

Repair or replace?

ReplaceReplacement PLC-5 units are usually surplus or refurbished. Replace the 1785-L80B if it is dead or faulting and you have a current program backup. Check that the series and firmware match your project first. A replacement 1785-L80B is sourced on request, so compare its lead time with a repair before deciding.

RepairRepair keeps the exact 1785-L80B your program and licensing were validated on and can preserve the memory contents when no backup exists. It is usually the better call for battery-holder corrosion, a damaged comm port or a failed power section when matching stock is scarce. The two 1785-L80B symptoms we see most often are “Program lost on power cycle” and “PROC LED red (major fault) at power-up”. If a replacement is already installed, repairing the failed 1785-L80B 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. The 1785-L80B repair is estimated $1,440.00, function-tested before return and covered by 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 1785-L80B in?

The 1785-L80B 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.

When does this part ship?

This 1785-L80B 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 1785-L80B. 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 1785-L80B has been sourced and is ready, free local pickup is available at NJT Automation, 2122 N Prospect Ave, Milwaukee, WI, during business hours.