Thresholds for PI Points
It would be nice to have threshold attributes for pi points. Then we could configure that values received from the source outside this limits would be ignored (not stored), substituted by the respective threshold value or even by an "Over\Under Range" state. This discussion is pretty old in the community, and I find it quite odd this configuration was never considered (of course there could be specific reasons I am not aware of).
The need for filtering negative values of a flow tag, for example, when summarizing data is very common.
See this discussion below for better understanding:
Users are led to believe that Zero and Span constitute these thresholds, but in fact they do not filter any value neither impact archiving.
I just had a related request from a customer. They intermittently have very large, erroneous values being generated by their control system, which are muddying up their ProcessBook displays. Right now, they are manually going into PI to delete these values, which is obviously not ideal. I thus asked about filtering functionality in a related PI Square thread (https://pisquare.osisoft.com/message/122852-re-filtering-in-pi-processbookpi-datalink) and was pointed to an existing enhancement request (https://techsupport.osisoft.com/Troubleshooting/Known-Issues/18617OSI8), so I definitely think there is an interest out there for this functionality.
What is the source of the data? One can argue that the source should be sending the proper data and not, for example, a negative value for flow, requiring the destination to examine every single value and applying a filter.