Is Value Changed VI

Returns TRUE if this is the first call of this VI or if the input value is different from the value when this VI was last called.


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Inputs/Outputs

  • cfxdt.png value —

    value specifies the value to check. This input accepts any data type.

  • ibool.png changed or first call? —

    changed or first call? returns TRUE if this is the first call of this VI or if the value changed since the last time this VI was called. Otherwise, this output returns FALSE.

    • Examples

    Refer to the following example files included with LabVIEW.

    • labview\examples\Malleable VIs\Basics\Malleable VIs Basics.lvproj