Reference packaging image. Exact product photo pending verification.
PLC, I/O & HMI
1756-OF8
Allen-Bradley
Allen-Bradley 1756-OF8 sourcing reference. Send the complete nameplate details and required quantity for review.
This page identifies a sourcing reference. It does not guarantee continuous stock. Availability, condition, quantity, lead time, and commercial terms are confirmed after inquiry.
Copy the model and paste it into WhatsApp with your required quantity.
Reference details
- Manufacturer / brand
- Allen-Bradley
- Model / reference
- 1756-OF8
- Series / type
- Confirm against nameplate
- Condition
- Confirm with inquiry
- Quantity
- Confirm with inquiry
- Lead time
- Confirm with inquiry
Product information
Product Overview
The 1756-OF8 is a ControlLogix 8-point analog output module providing eight voltage or current outputs — ±10 V and 0…20 mA ranges — on a 20-pin removable terminal block. Official specifications list 15-bit voltage resolution (320 µV/bit across 10.5 V) and 16-bit current resolution (325 nA/bit across 21 mA), with backplane current draw of 200 mA @ 5.1 V and 300 mA @ 24 V. The front display shows module health, calibration and mode status.
Technical Specifications (Official Rockwell Data)
| Product family | ControlLogix analog I/O module |
|---|---|
| Output type | Voltage / current, 8 points |
| Output ranges | ±10 V; 0…20 mA |
| Resolution | Voltage 15 bits (320 µV/bit); Current 16 bits (325 nA/bit) |
| Terminal block | 20-pin removable |
| Current draw | 200 mA @ 5.1 V DC; 300 mA @ 24 V DC |
| Front display | Module health / In Calibration / Mode |
| Product series | Series C |
| Lifecycle status (Rockwell) | Active |
Lifecycle Status & Availability
Rockwell lists the 1756-OF8 as Active (Series C). The conformally coated 1756-OF8K is also in the catalog for corrosive environments, and HART-capable output duty uses the 1756-OF8H family.
Typical Applications
- Driving control valves, VFD speed references and positioners from ControlLogix panels (4–20 mA and 0–10 V loops)
- Mixed voltage/current output duty on one 8-point card
- Spares for process skids where loop-count is modest but resolution matters
Related & Compatible Models
Family: 1756-OF8K (coated), 1756-OF8H/OF8IH (HART). 4-point counterpart: 1756-OF4. Input counterpart: 1756-IF16. High-resolution/isolated variants exist for demanding loops — state your loop spec when requesting a quotation.
Requesting a Quotation
Send the exact catalog number including suffix (OF8 / OF8K / OF8H), the series letter, and quantity. If your loops are 4–20 mA to smart positioners needing HART, say so explicitly. Pricing and availability are confirmed individually.
Frequently Asked Questions
Does the OF8 output 4–20 mA?
The official range is 0…20 mA; 4–20 mA process signaling is implemented in the program scaling. Confirm loop requirements when ordering, especially if you need HART — that is the OF8H variant.
What resolution does it provide?
Official data: 15 bits for voltage (320 µV/bit across 10.5 V) and 16 bits for current (325 nA/bit across 21 mA).
OF8 vs OF8K vs OF8H?
K = conformal coating for corrosive atmospheres; H = HART-capable for smart devices. The plain OF8 is the standard version. All three are separately cataloged products — order the exact suffix your panel specifies.
How many outputs per module?
Eight voltage or current outputs on a 20-pin removable terminal block.
MODEL INQUIRY
Request this
reference.
Include a nameplate photo or full specification when revisions may differ.