Allen-Bradley 1756-OF8IH ControlLogix Analog Output – Ready to Ship
In stock: 1756-OF8IH ControlLogix analog output module, 8-channel isolated, HART analog output module. NJT Automation has 1 unit available in Milwaukee, WI, ready to ship or available for local pickup. Includes a one-year full-function warranty.
$1,599.99USD
| Part Number | 1756-OF8IH |
| Description | ControlLogix analog output module, 8-channel. 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
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| Returns | 90-day free returns. View return policy |
| Exchange | Send us your defective 1756-OF8IH after your purchase for a 10% core credit ($160). We also purchase old or damaged parts outright. |
Replacement Options for 1756-OF8IH
In stock and ready to ship today
| Availability | Similar Match Available A similar unit is in stock and ready to ship once you confirm the condition you need. | ||||||||
| Variants | |||||||||
| Repairs | 1756-OF8IH Mail-In Repair ServiceEstimated: $1,440.00 | ||||||||
Part Number Decoder | ControlLogix analog output module 1756OF8IH 8-channel isolated, HART analog output module.
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)
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. | ||||||||
Allen Bradley Information | Lifecycle: Active. Verify current status with the manufacturer. | ||||||||
Alternate Part Numbers | 1756OF8IH, 1756-0F8IH | ||||||||
| Category | ControlLogix | ||||||||
| Part Number | 1756-OF8IH | ||||||||
| Manufacturer | Allen-Bradley | ||||||||
Can the 1756-OF8IH be repaired?
Yes. NJT Automation offers mail-in repair for the 1756-OF8IH, 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
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-OF8IH failures
Failure patterns we regularly see on ControlLogix analog output module hardware like the 1756-OF8IH:
- 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-OF8IH when a channel reads open, pegged, or drifting and the loop cannot wait. The ControlLogix analog output module only carries its channel settings, and those download from the project. Order the exact 1756-OF8IH. The catalog number sets the 8-channel density, and a different suffix changes it. The 1756-OF8IH 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-OF8IH when replacements are hard to find or the card is one of several the same age. The two 1756-OF8IH 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-OF8IH gives you a tested spare on the shelf for the next failure. The 1756-OF8IH 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.
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-OF8IH?
The Allen-Bradley 1756-OF8IH is a ControlLogix analog output module: 8-channel isolated, HART analog output module.
What condition is the 1756-OF8IH in?
NJT Automation currently has 1 unit of the 1756-OF8IH 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-OF8IH ControlLogix 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-OF8IH ControlLogix 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-OF8IH unit at NJT Automation, 2122 N Prospect Ave, Milwaukee, WI, during business hours. Contact us to arrange a pickup time.
What communication ports does the 1756-OF8IH have?
HART: passes HART digital data (device status, secondary variables) over the 4…20 mA loop.
How many I/O points does the 1756-OF8IH have?
8 channels.