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Discontinued — discontinued on April 29, 2021; Rockwell Automation lists Engineering Replacement without a specified drop-in product.
1746-NIO4I combines analog measurement and current-loop control in one SLC 500 position, helping retrofit projects preserve rack space while supporting both sensing and actuation.
During retrofit planning, map every field circuit to the two inputs and two outputs, and confirm the required voltage or current mode for each input before moving any wiring.
Keep the original module position and SLC program unchanged until switch settings, loop power, shielding, and output-load requirements have been checked against the installed system.
Allen-Bradley 1746-NIO4I Manuals, Product Family, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.





