I have two PC's. Let's call them Historian Server Node and Interface Node (Interface Node is also my Node for display archive data -> the place where i can
trend data etc.) Both PC's are actually two virtual machines. I used them to learn PI.
I stopped my learn for one month. During this month the Historian Server Node was stopped. Today i wanted to go back to learning and turn on Historian Server.
What i received is that all of my variables was in "stale" state. Even the values are changing now.
Question 1 - where i can define time before the variable go to "stale" state?
Question 2 - how can i remove the "stale" state and make them ok?