My team has been running into a particular issue with PI Web API when querying some tags using the calculation/intervals endpoint. For example:
While this works fine for SINUSOID and many of our tags, it does not work for some tags. Instead, it returns the following error:
[-11091] Event collection exceeded the maximum allowed
I’m suspecting that the tags resulting in this error are high frequency tags with a lot of data stored on the PI Server for this time interval. However, I would assume that we would have some control over avoiding this error by manipulating the sampleInterval parameter on the query string. However, no matter what value I set this parameter to, the result is the same.
Is this is a known issue? Is there a way we can retrieve the results without shortening the time range?