There may be more than one data-acquisition object in a script, but only one may be running (i.e., acquiring values) at any time. The typical life cycle of a PV object is:
Pv = PV.New(Tag, Pstat) ; Create the Pv
Pv.SetPlot(Plottype) ; Determine the plot type
Pv.Run() ; Run the curve
Pv.Printl() ; Print the curve out to Output
When a PV object is run, the potentiostat must be in either in Potentiostatic or Galvanostatic mode.