Two outputs named A & B is common with quadrature encoding.

https://en.wikipedia.org/wiki/Rotary_encoder
https://en.wikipedia.org/wiki/Rotary_encoder#/media/File:Quadrature_Diagram=
..svg

On 5 Apr 2017 at 14:04, Phil Keller wrote:

> I am looking into a design where I would like to use a single=20
> incremental encoder for two separate controls.  In order for me to=20
> accomplish this I need to understand what the outputs (A & B) are held=20
> to when there is no rotation.  Are the outputs held OFF (aka open), ON=20
> or one of each based on the last rotation?  What happens when the user=20
> rotates the knob very slowly?  Is the pulse a fixed width or is it base=20
> on shaft rotational speed?  What is the state of the outputs if the=20
> rotation is halted between detents?  Is the nominal output state=20
> manufacture dependent or is there a "standard".



--=20
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