Don't have JS knowledge so it would be great if anyone can help to resolve for increasing the limit of 400 points on amchart Histogram custom symbols?
It looks like the issue you are running into may have to do with too many values being returned by a summary calculation. Is your JS code performing a summary calculation on the data returned by the attribute for the given time range? These types of queries can be very expensive both server and client side so this limit looks to be hardcoded. I was unable to find a parameter in either PDS or Coresight configuration to increase this limit.
Check out this other PISquare thread for more information:
Too many points in dataset. Current limit is 500. Please modify the query to return fewer points or increase the limit
If somewhere in the JS code a summary calculation is being performed, you could try increasing the "interval" hence reducing the number of summaries performed which should bring you under the hard-coded limit.
Hope this helps,
- Adam Fink
Thanks a lot for your response. Thanks for linking the article. It helped.
I tried pulling the data through PI Web API as PI Data services is limited to 400 points behind coresight. Was successful.
Retrieving data ...