Allen-Bradley 1756-OF8I ControlLogix Analog Output – Ready to Ship

Name: Allen-Bradley 1756-OF8I ControlLogix Analog Output Module
Brand: Allen-Bradley
SKU: 1756-OF8I
Price: 1599.99 USD
Availability: InStock

In stock: 1756-OF8I ControlLogix Isolated analog output module, 8-channel isolated analog output module: per-channel current or voltage. NJT Automation has 1 unit available in Milwaukee, WI, ready to ship or available for local pickup. Includes a one-year full-function warranty.

Allen-Bradley 1756-OF8I ControlLogix Isolated analog output module – front view

$1,599.99USD

Request Repair QuoteEstimated $1,440.00

Part Number	1756-OF8I
Description	ControlLogix Isolated analog output module. In stock in unused surplus condition, Series A.
Shipping	Ships today 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 ($240.00) 3 years +25% of product price ($400.00) View full warranty policy
Returns	90-day free returns. View return policy
Exchange	Send us your defective 1756-OF8I after your purchase for a 10% core credit ($160). We also purchase old or damaged parts outright.

Replacement Options for 1756-OF8I

In stock and ready to ship today

Allen-Bradley / Rockwell Automation 1756-OF8IH Unused surplus (new old stock) - Buy 1756-OF8IH replacement | NJT Automation

Allen-Bradley / Rockwell Automation 1756-OF8IH Unused surplus (new old stock) - alternate view

Allen Bradley 1756-OF8IH Ser A ControlLogix 8-Point HART Analog Output Module

$1,599.99 USD

Condition: Unused surplus (new old stock)

Series A

1 in stock

View Product

Availability

Similar Match Available

A similar unit is in stock and ready to ship once you confirm the condition you need.

Variants

Part NumberConditionSeriesQtyPrice

1756-OF8IH /A$1,599.99

Unused surplus (new old stock) · Series A · 1 in stock

1756-OF8IH /AUnused surplus (new old stock)Series A1$1,599.99 USD

1756-OF8I

Refurbished — pick series, then request a quote

Series neededRequest Quote

1756-OF8IRefurbishedSeries needed—Request Quote

Repairs

1756-OF8I Mail-In Repair Service

Estimated: $1,440.00

Part Number Decoder

ControlLogix Isolated analog output module

1756OF8I

8-channel isolated analog output module: per-channel current or voltage.

1756: BulletinControlLogix: Rockwell Automation's chassis-based control platform (controllers, I/O, communication modules, power supplies and chassis).
OF8I: Module code8-channel isolated analog output module: per-channel current or voltage.

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

Physical Data

Weight and DimensionsWeight0.66 lb (0.30 kg)H × W × D5.7 × 1.4 × 5.7 in. (145 × 35 × 145 mm)

Weight	0.30 kg (0.66 lb) Typical unit weight
Dimensions (H × W × D)	145 × 35 × 145 mm (5.7 × 1.4 × 5.7 in.) Single-slot module
Shipping Weight	0.83 kg (1.82 lb) Estimated: unit weight plus box and packing material; bills as 2 lb
Shipping Box (L × W × H)	12 × 12 × 8 in. (305 × 305 × 203 mm) Smallest standard box fitting the product with 3 in. cushioning per side

Product weight and dimensions 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.

Datasheet

Datasheet available for download

Generated from product specifications; not an official Allen-Bradley datasheet. For an official datasheet, contact Allen-Bradley or an authorized distributor.

Similar Part Numbers

1756-DHRIO Module code: Data Highway Plus / Remote I/O module
1756-HIST2G Module code: FactoryTalk Historian Machine Edition module with 2 GB
1756-RM2 Module code: Redundancy module, second generation

Alternate Part Numbers

1756OF8I, 1756 0F8I

Can the 1756-OF8I be repaired?

Yes. NJT Automation offers mail-in repair for the 1756-OF8I, 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 1756-OF8I failures

Failure patterns we regularly see on ControlLogix Isolated analog output module hardware like the 1756-OF8I:

Output channel stuck at zero or full scale: output driver damaged by a field short or miswired supply
Output drift or offset, calibration lost
Open-wire / high-alarm bits set with a good field loop (channel circuit damaged)
Channel dies after a ground loop or an inductive load on the output
Module fault after backplane voltage sag

Repair or replace?

ReplaceReplace the 1756-OF8I when a channel reads open, pegged, or drifting and the loop cannot wait. The ControlLogix Isolated analog output module only carries its channel settings, and those download from the project. The 1756-OF8I is on our shelf now and ships the same day for orders placed before 5:00 PM Central.

RepairAnalog cards are worth repairing because the failure is usually one channel's front end or an isolated supply, and the repair includes recalibration of every channel. Choose repair for the 1756-OF8I when replacements are hard to find or the card is one of several the same age. The two 1756-OF8I symptoms we see most often are “Output channel stuck at zero or full scale” and “Output drift or offset, calibration lost”. If a replacement is already installed, repairing the failed 1756-OF8I gives you a tested spare on the shelf for the next failure. The 1756-OF8I 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:PLC Repair 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 is the 1756-OF8I?

The Allen-Bradley 1756-OF8I is a ControlLogix Isolated analog output module: 8-channel isolated analog output module: per-channel current or voltage.

What condition is the 1756-OF8I in?

NJT Automation currently has 1 unit of the 1756-OF8I in stock in unused surplus condition (Series A). Each listing states its own condition and series. Typically unused surplus or new/open-box stock. Packaging may be opened or replaced, but the module itself has no meaningful run time.

When does this part ship?

NJT Automation has 1 unit of the 1756-OF8I ControlLogix Isolated analog output module on the shelf in Milwaukee, WI, priced from $1,599.99. Orders placed before 5:00 PM Central on business days ship the same day; orders placed after the cutoff ship the next business day.

Can you ship this next-day air?

Yes. UPS Next Day Air is available at checkout for the 1756-OF8I ControlLogix Isolated analog output module. 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. Free local pickup is available for the 1 in-stock 1756-OF8I unit at NJT Automation, 2122 N Prospect Ave, Milwaukee, WI, during business hours. Contact us to arrange a pickup time.