Once true in a loop

[cpalka]

Dear all

I need to count the times I press the true button for saving data. If I still pressing and the loop time is 1 s it continues counting the true times, but I only need to count once each time I press true button.

I share a small example from my code for better understan.

Please take note my LB is 2013

Best

CPalka

[GerdW · Accepted solution]

Hi CPalka,

so you only want to count rising edges?

Use quickdrop to easily place "BooleanCrossing" in your VI…

[cpalka]

Hi GerdW

Thanks for the help, it´s working now.

Best regards

CPalka

[altenbach]

All you probably need is set the button to latch action. No extra code needed. (right-click...mechanical action ...)

(Also note that counting should be done with integers (blue), not floating point numbers(orange)).

[cpalka]

Hi altenbach

I need to save data until  releasing the saving button.

Best

CPalka

[altenbach]

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@cpalka wrote:

I need to save data until  releasing the saving button.

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Well, you never said that. 😄 I assumes that pressing the button would just add one log entry, for example.

You still don't need all these subVIs and complicated code. Here's how I would count how many times the "switch until released" button went from false to true.