Allen-Bradley 1756-L84E ControlLogix Processor | Ready to Ship
20 MB ControlLogix 5580 controller, embedded 1 Gb EtherNet/IP port.
2 in stock.
$4,499.99 – $4,899.99USD
| Shipping | Ships today from Milwaukee, WI . UPS Ground included | Next-Day Air and Worldwide Shipping available at checkout |
| Description | Allen-Bradley 1756-L84E ControlLogix Processor (ControlLogix 5580 platform). In stock now in unused surplus condition, Series B. |
| 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 (from $675.00) +2 Years: +25% of product price (from $1,125.00) |
| Returns | 90-day free returns on all purchases.View return policy |
| Exchange | We will purchase your old or damaged parts. |
NJT Automation supplies the Allen-Bradley 1756-L84E ControlLogix Processor with fast next-day delivery, backed by a full 1-year warranty. If you prefer to repair your existing unit, we also offer a mail-in repair service with rush turnaround available.
Replacement Options for 1756-L84E
In stock and ready to ship today
| Availability | Multiple Options In Stock |
| Variants | |
| Repairs | 1756-L84E Mail-In Repair Service |
| Part Number | 1756-L84E |
| Manufacturer | Allen-Bradley |
| Category | ControlLogix |
Allen Bradley Information | Technical Description Allen Bradley (Rockwell Automation) 1756 E03 - 1756-L84E Lifecycle: Active — verify current status with the manufacturer |
Part Number Decoder | ControlLogix 5580 controller 1756L84E 20 MB ControlLogix 5580 controller, embedded 1 Gb EtherNet/IP port.
Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here. |
Related Variants | |
Alternate Part Numbers | 1756L84E |
Can the 1756-L84E be repaired?
Yes. NJT Automation offers mail-in repair for the 1756-L84E, 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 1756-L84E failures
Failure patterns we regularly see on ControlLogix 5580 controller hardware like the 1756-L84E:
- Controller will not boot or shows a solid red OK LED (nonrecoverable major fault) after a power event
- SD card corruption: controller reports a load failure or comes up with no project
- Front USB and 1-Gb Ethernet port failures from ESD or a damaged connector
- Four-character status display stuck, blank or showing scrolling fault text
- Overheating in a full chassis, especially with no spacing in sealed enclosures
- Repeated major faults after a firmware flash that did not complete
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 1756-L84E? Request a repair quote below. For immediate assistance, text photos of your faulty unit and a description of the symptoms to (414) 331-5954.
Still have questions?
Find answers to shipping, warranties, repairs, and more.