Allen-Bradley 1769-L16ER-BB1B CompactLogix Processor

Name: Allen-Bradley 1769-L16ER-BB1B CompactLogix Processor
Brand: Allen-Bradley
SKU: 1769-L16ER-BB1B
Price: 1499.99 USD
Availability: InStock

In stock: 4 units in Milwaukee, WI. Physically stocked and ready to ship or available for local pickup. Includes a 1-year full-function warranty.

CompactLogix 5370 L1 controller · 384 KB user memory · dual EtherNet/IP ports · 4 nodes · 6 POINT I/O (1734) expansion modules

Allen-Bradley 1769-L16ER-BB1B CompactLogix 5370 L1 controller, 384 KB – Series B (1 of 10)

Actual NJT inventory photos

Starting at

$1,499.99USD

Unused surplus units available

Request Repair QuoteEstimated $1,440.00

Part Number	1769-L16ER-BB1B
Description	CompactLogix 5370 L1 controller, 384 KB. In stock in unused surplus condition, Series C.
Shipping	Ships same or next business day UPS Ground included \| Next-Day Air and Worldwide Shipping available at checkout
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 (from $225.00) 3 years +25% of product price (from $375.00) View full warranty policy
Returns	90-day free returns. View return policy
Exchange	Send us your defective 1769-L16ER-BB1B after your purchase for a 10% core credit (from $150). We also purchase old or damaged parts outright.

Replacement Options for 1769-L16ER-BB1B

Pick a condition and series below. UPS Ground shipping included.

Allen-Bradley 1769-L16ER-BB1B CompactLogix Processor – Series C, New surplus (sealed)

Allen-Bradley 1769-L16ER-BB1B CompactLogix Processor – Series C, New surplus (sealed), second photo

Allen Bradley 1769-L16ER-BB1B Ser C CompactLogix 5370 L1 Controller 24VDC

$1,499.99 USDIn-stock match

Condition: New surplus (sealed)

Series C

1 in stockView details

Allen Bradley 1769-L16ER-BB1B /C CompactLogix 384KB Controller 24VDC Sealed

$1,999.99 USDIn-stock match

Condition: New surplus (sealed)

Series C

3 in stockView details

Variants

Part NumberConditionSeriesQtyPrice

1769-L16ER-BB1B /C$1,499.99

New surplus (sealed) · Series C · 1 in stock

1769-L16ER-BB1B /CNew surplus (sealed)Series C1$1,499.99 USD

1769L16ERBB1B /C$1,999.99

New surplus (sealed) · Series C · 3 in stock

1769L16ERBB1B /CNew surplus (sealed)Series C3$1,999.99 USD

1769-L16ER-BB1B

Refurbished — pick series, then request a quote

Series neededRequest Quote

1769-L16ER-BB1BRefurbishedSeries needed—Request Quote

Availability

4 units in stock

Repairs

1769-L16ER-BB1B Mail-In Repair Service

Estimated: $1,440.00

Part Number Decoder

CompactLogix 5370 L1 controller

1769L16ER4BB1B

1769: BulletinCompactLogix / Compact I/O: Rockwell Automation's rack-less, DIN-rail Logix platform. 1769 controllers, I/O modules, power supplies and adapters snap together on a shared backplane bus.
L16: ControllerCompactLogix 5370 L1 controller (L16 class).
ER: CommunicationDual EtherNet/IP ports (linear / device-level-ring topologies), USB programming port, SD card slot.
384 KB: Memory size384 KB of standard user memory.
4: NetworkSupports up to 4 EtherNet/IP nodes; 6 POINT I/O (1734) expansion modules.
BB1B: Embedded I/O16 sinking 24V DC digital inputs and 16 sourcing 24V DC digital outputs built into the controller.

Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here.

Series & Revisions

Series C in stock; other series on request.

Series notes: Logix keys on catalog number and firmware revision, not series; with the default Compatible Module keying, any series of the same catalog number is accepted in the slot.

Intended Use

Built for machine-level control applications. CompactLogix controllers run packaging machines, palletizers, conveyors, material handling, small process skids and OEM equipment where a mid-size Logix controller with local I/O fits in the machine panel and programs in Studio 5000 like the rest of the plant.

Physical Data

Weight and DimensionsWeight1.46 lb (0.66 kg)

Weight	0.66 kg (1.46 lb) Typical unit weight, CompactLogix 5370 controller; 1769-L24ER-QB1B 0.63 kg
Shipping Weight	1.11 kg (2.45 lb) Estimated: unit weight plus box and packing material; bills as 3 lb
Shipping Box (L × W × H)	12 × 10 × 8 in. (305 × 254 × 203 mm) Most common box recorded for this catalog number

Product weight are typical manufacturer-published values and may differ by series or option. Shipping box and weight are estimates for freight planning; the packed unit may ship in a different box.

Allen Bradley Information

Technical Specifications10 parameters from manufacturer-published specifications

Controller family	CompactLogix 5370
User memory	384 KB
EtherNet/IP nodes supported	4
Local expansion I/O	Up to 6 × 1734 POINT I/O modules
Embedded I/O	10 × 24V DC inputs; 6 × 24V DC outputs
Tasks / programs	32 tasks; 100 programs per task
Embedded communication	2 × EtherNet/IP ports with embedded switch (DLR, linear or star); 1 × USB
Controller connections	256
Memory card	1784-SD1 (1 GB SD, included)
Programming languages	Relay ladder, structured text, function block, sequential function chart

Typical manufacturer-published values for this catalog number; confirm against the current manufacturer documentation before specifying.

Can the 1769-L16ER-BB1B be repaired?

Yes. NJT Automation repairs the 1769-L16ER-BB1B 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.

Get a repair quoteor text photos and symptoms to (414) 331-5954

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.

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Common failures

Failure patterns we regularly see on CompactLogix 5370 L1 controller hardware like the 1769-L16ER-BB1B:

CompactFlash or SD card corruption: stored project will not load
Channel 0 RS-232 port damaged by a hot-plugged programming cable
1769 bus faults from a worn local-bus connector or a missing end cap
Program lost on power cycle: battery (1769-BA) depleted, BAT LED red or flashing
Solid red OK LED (nonrecoverable major fault) at power-up

Functional test video

Bench test from a completed 1769-L16ER-BB1B repair.

Open the test video page

Related services:PLC Repair All Repair Services

Photos by NJT Automation; test videos from NJT or network repair technicians.

Still have questions?

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

Frequently Asked Questions

What is the 1769-L16ER-BB1B?

The Allen-Bradley 1769-L16ER-BB1B is a CompactLogix 5370 L1 controller, 384 KB user memory, dual EtherNet/IP ports, 4 nodes, 6 POINT I/O (1734) expansion modules, embedded 16-in / 16-out digital I/O.

What condition is it in?

NJT Automation currently has 4 units of the 1769-L16ER-BB1B in stock in unused surplus condition (Series C). Each listing states its own condition and series. Factory-sealed, unused surplus stock in original packaging. May carry an older date code or series than current OEM production.

How much does it cost?

At NJT Automation, 5 1769-L16ER-BB1B CompactLogix 5370 L1 controllers have sold since 2025 for $750 – $2,000, with a median of $900. Right now 4 units are in stock at $1,500 to $2,000, depending on condition and series.

When does this part ship?

4 units of the 1769-L16ER-BB1B CompactLogix 5370 L1 controller are on the shelf in Milwaukee, WI, priced from $1,499.99 to $1,999.99. Orders before 5:00 PM Central on a business day ship the same day; next-day air is available at checkout.

What communication ports does it have?

Dual EtherNet/IP ports (linear / device-level-ring topologies), USB programming port, SD card slot.

How much memory does it have?

384 KB of standard user memory.