Allen-Bradley 1785-L11B PLC-5 – Pickup in Store

Name: Allen-Bradley 1785-L11B PLC-5
Brand: Allen-Bradley
SKU: 1785-L11B
Price: 549.99 USD
Availability: InStock

In stock: 1 unit in Milwaukee, WI. Physically stocked and ready to ship or available for local pickup. Includes a 1-year full-function warranty.

Allen-Bradley 1785-L11B PLC-5 – Series D (1 of 10)

Actual NJT inventory photos

Price

$549.99USDUnused surplus (open box), Series DView listing

Request Repair Quote

Part Number	1785-L11B
Description	Allen-Bradley 1785-L11B PLC-5. In stock in unused surplus condition, Series D.
Shipping	Ships same or next business day UPS Ground Included. Next-Day Air and worldwide shipping available. Courier Within 350 miles, est. $3.50/mile, subject to availability.
Pickup	Free local pickup at 2122 N Prospect Ave. Call ahead at (414) 331-5954.
Warranty	1-year full-function warranty provided by NJT Automation. Warranty details Included 1 year, full-function 2 years +15% of product price ($82.50) 3 years +25% of product price ($137.50) View full warranty policy
Returns	90-day free returns. View return policy
Exchange	Send us your defective 1785-L11B after your purchase for a 10% core credit. We also purchase old or damaged parts outright.

Replacement Options for 1785-L11B

Allen-Bradley 1785-L11B/E PLC-5 – Series D, Unused surplus (open box)

Allen-Bradley 1785-L11B/E PLC-5 – Series D, Unused surplus (open box), second photo

Allen-Bradley 1785-L11B/D PLC-5 Processor Ser. D 1785-L11B

$549.99 USD

Condition: Unused surplus (open box)

Series D

1 in stockView details

Variants

Part NumberConditionSeriesQtyPrice

1785-L11B/E /D$549.99

Unused surplus (open box) · Series D · 1 in stock

1785-L11B/E /DUnused surplus (open box)Series D1$549.99 USD

1785-L11B

Refurbished — pick series, then request a quote

Series neededRequest Quote

1785-L11BRefurbishedSeries needed—Request Quote

Availability

1 unit in stock

Series & Revisions

Series D in stock; other series on request.

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.

Keep the existing 1771 Remote I/O racks running under the new controller with a 1756-RIO scanner, then convert racks one at a time instead of in a single outage.
Move 1771 I/O to 1756 I/O without rewiring field devices using the 1492 conversion wiring system (1492-CM1771 conversion modules with pre-wired cables).
Bridge DH+ with a 1756-DHRIO so existing PanelViews and PLC-5 peers stay on the network during the cutover.
Translate the RSLogix 5 program with the Studio 5000 Logix Designer project translation tool; publication 1756-RM085 lists the PLC-5 instructions and addressing that need manual rework.

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 DimensionsBox15 × 14 × 14 in.

Shipping Box (L × W × H)	15 × 14 × 14 in. (381 × 356 × 356 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 PLC-5 Processor 1785-L11B.

Technical SpecificationsLifecycle status

Lifecycle	Discontinued Verify current status with the manufacturer.

Still have questions?

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

Frequently Asked Questions

What condition is the 1785-L11B in?

NJT Automation currently has 1 unit of the 1785-L11B in stock in unused surplus condition (Series D). Each listing states its own condition and series. Used means a unit removed from service and sold without refurbishment. Cosmetic condition, any functional testing performed, and the warranty term are stated on each unit’s own listing. From the listing: This item is in new-surplus condition, still in its original packaging. While it may have been briefly installed, it remains in excellent, new condition.

When does this part ship?

1 unit of the 1785-L11B are on the shelf in Milwaukee, WI, priced from $549.99. Orders before 5:00 PM Central on a business day ship the same day; next-day air is available at checkout.