Is there a simple way to determine what PI analysis is writing to a PI tag?
I've recommended to our customers that, for tags written to by analytics, they use the point source AFCALC or similar to tell humans where the data is coming from. PI Analytics doesn't use the point source but it's a quick way to show that an analytic is writing to it.
However it's not clear what analysis is writing to it. Given that analyses are tied to AF databases, you might have to browse through the list of analytics in multiple AF databases to find the analysis you are looking for.