Hello tabatu,
sorry for the late reply.
Talk to your PLC programmer - define your DBs in such a way that you can read or write several values with one Read- or Write-VI.
Setting your voltage and current could be merged into one write-DB, if the variables are defined after each other inside the DB.
I usually like to create one DB for data that goes from PLC->LabVIEW and another DB for data LabVIEW -> PLC. Makes it easier to debug on both sides.
Regards
DATA AHEAD
Kudos are welcome...