What is PI data link function to read raw values of tags for specific duration.
To accomplish this, you would need to use the Compressed Data function. I will return you all the recorded data for a specific period of time (link).
Please note that it will not show you any events that were taken out by Exception testing and Compression (link).
Appreciate your quick response!
Does Compressed Data function returns values without any aggregation?
Yes. Compressed Data doesn't do any aggregation.
If you want aggregation, you can have a look at Calculated Data.
Retrieving data ...