08-21-2014 09:11 PM
08-21-2014 09:18 PM
08-22-2014 02:25 AM
Hi Stanley,
in case you cannot open the context help in your LabVIEW installation I can show you the explanantion given there:
output returns the control output of the PID algorithm that is applied to the controlled process. If this VI receives an invalid input, output returns NaN.