I have a python scripts that extracts raw tag data for a given time period. The code loops through a list of tags that was read in from a csv file. The time period can be significant i.e. a number of years so the code splits the time period into weeks where it reads from the PI archive and then writes to a csv file using:
This approach works for one or two tags over a long time range or a large number of tags for a shorter period but fails when trying to have 3+ tags for a longer period of time. (8 yrs)
The error message is:
When connecting to the PI server is there a way to close the connection after each tag has been read and establish a new connection?
Any suggestions are welcome.