I am looking into creating some UDTs to be used in SQL bridge (to streamline the process of adding any new machine to our data collection projects).
I have only ever used OPC Items in a transaction group, so the rate at which I’m polling is fairly straightforward. I only need to know the ‘Execution Schedule’ of the group.
However, with the UDTs, they’ll only update as quickly as the Tag Group Rate they’re assigned to.
How do the Tag Group Rate and Transaction Group Execution Schedule interact?
Do I need to make my tag group rate twice the execution schedule to ensure I don’t miss any tag changes?
I don’t want to unnecessarily overload the Ignition server with high tag update rates.