I am looking for controlling the output value of tag at AF Server with constant sample rate. Can we do this in AF so that I will get a value at fixed time interval.
Could you explain your use case a little further? AF Server itself only gives contexts to a tag and group them for human readability and/or organization of your assets. An attribute mapped to a PI tag is part of your asset.
Did you mean some sort of calculated output values via PI Analysis service?
To me it seems you are looking something to have an output at particular duration\time correct..
If this is the case try to put in logic a validation with time.
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