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1756-OF8I – ControlLogix analog output module
1756-OF8I is a current Allen-Bradley ControlLogix analog output module (Rockwell lifecycle status: Active, read on 30 October 2026). It replaces 1 discontinued catalog number in TDL's end-of-life lookup. TDL quotes 1756-OF8I as a spare or as part of a replacement, and carries out the change on site: configuration, program changes where needed, and testing.
| Catalog number | 1756-OF8I |
|---|---|
| Rockwell description | Analog Output Module, 8 Isolated Points, Current and Voltage (36 Pin) |
| Rockwell lifecycle status | Active — sold and supported (read on 30 October 2026) |
| Product family | ControlLogix analog output module |
| Rockwell technical documents | 1756-TD002 |
Discontinued parts this catalog number replaces
| Discontinued part | Product | Lifecycle | Basis |
|---|---|---|---|
| 1756-OF6CI | ControlLogix 6-Channel Isolated Current Analog Output Module 1756-OF6CI | Discontinued 21/12/2016 | named by Rockwell |
Migration notes
- Functional replacement: 1756-OF8I (1756-TD002U p.213).
- ControlLogix 5560 controllers (1756-L61…L65) were discontinued on 01/06/2017; the product pages list Functional Replacement but name no catalog number, so the ControlLogix 5580 numbers in the table are TDL proposals sized by memory. The 1756-CNB/CNBR ControlNet modules have Rockwell-named replacements (1756-CN2/CN2R); for the 1756-DHRIO and 1756-RIO the Rockwell pages name no replacement.
Lifecycle status changes over time: confirm the current status on the Rockwell product page or in the Product Compatibility and Download Center before ordering.
Related services: Lifecycle review and spare parts Rockwell Automation upgrades ControlLogix in TDL Projects
Sources
- Rockwell Automation, Rockwell product page 1756-OF8I — read on 30 October 2026
- TDL, End-of-life lookup: 1756-OF6CI