Allen-Bradley 1785-L80E PLC-5
Allen-Bradley 1785-L80E PLC-5. NJT Automation offers mail-in repair for the 1785-L80E 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.
Actual NJT inventory photos
| Part Number | 1785-L80E |
| Price | On Request Previously sold for $3,999.99 USDAvailability and condition determine final quote. |
| Description | Allen-Bradley 1785-L80E PLC-5. PLC Processor 1 Ethernet 2 DH+ or Remote I/O Adapter or Scan Static RAM 1.0 MB. |
| 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
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| Returns | 90-day free returns. View return policy |
| Exchange | Send us your defective 1785-L80E after your purchase for a 10% core credit. We also purchase old or damaged parts outright. |
| Availability | Sourced on request We do not have a 1785-L80E on the shelf right now. We can source one through our supplier network; request a quote and we confirm availability, price and lead time before you commit. | ||
| Sourcing | Sourced through our Level 1 network of vetted US suppliers. Each unit is checked before it ships and carries the same NJT warranty and return policy as our own stock. Quotes within one hour during business hours; typical delivery 3–5 business days, next-day air available. Sourced parts are not available for local pickup. | ||
| Repairs | 1785-L80E Mail-In Repair ServiceEstimated: $2,000.00 | ||
Series & Revisions | PLC-5 labels carry a series letter and a revision letter; later ones add firmware features under the same catalog number. Series notes: Same slot and DH+ / Remote I/O wiring. Match or exceed the series/revision of the unit being replaced so the program loads. | ||
Intended Use | Built for large-scale legacy process and discrete control applications. PLC-5 processors control the installed base of automotive, steel, pulp and paper, water treatment and chemical plants built from the late 1980s through the 2000s, with Remote I/O racks spread across the facility. Replacement processors keep those systems running without a rip-and-replace migration. | ||
Migration Path | Rockwell Automation has discontinued the PLC-5 platform; new processors and communication modules are no longer manufactured. Published successor for the PLC-5: ControlLogix 5580 (1756-L8xE) or 5570 (1756-L7x) in a 1756 chassis.
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 DimensionsBox12 × 12 × 12 in.
Shipping box and weight are recorded from previous shipments of this catalog number and are provided for freight planning. | ||
Allen Bradley Information | PLC Processor 1 Ethernet 2 DH+ or Remote I/O Adapter or Scan Static RAM 1.0 MB. | ||
| Category | PLC-5 | ||
| Part Number | 1785-L80E | ||
| Manufacturer | Allen-Bradley | ||
Previously sold 1785-L80E
1 soldNJT Automation has supplied and shipped one 1785-L80E PLC-5 in 2024; request a quote and we will source another from our supplier network.
- Sold
- 1 in 2024
Can the 1785-L80E be repaired?
Yes. NJT Automation repairs the 1785-L80E by mail-in: diagnostic evaluation, component-level repair and a functional test, backed by a 1-year full-function warranty.
NJT managed repair. No evaluation fee; no repair, no charge. Prepaid UPS label both ways, $650 minimum, rush available. 1-year full-function warranty included, 2- and 3-year options.
Compare quotes from independent repair technicians. Post your repair on RepairMode to receive competitive bids from experienced technicians. Each technician sets their own pricing and warranty.
Find a PLC repair specialiston RepairMode.com ↗Common failures
Failure patterns we regularly see on PLC-5 processor hardware like the 1785-L80E:
- Serial (Channel 0) port damage from hot-plugged programming cables
- DH+ or Remote I/O channel dead: failed channel transceiver on the 3-pin blue-hose port
- Program lost on power cycle: BATT LED on, backup battery (1770-XYC) depleted
- Memory errors after a chassis power supply brownout
- Keyswitch worn or broken: processor will not stay in RUN or REM
Photos by NJT Automation; test videos from NJT or network repair technicians.
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