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Boolean Latch in Block Code

Hello

 

I am trying to make a latch boolean in my code. I want to make it so that once an indicator is true, it will stay true for the duration of the run. I also want it to restart the boolean latch to false everytime the program is ran. Is there a way to do this?

 

Thanks!

Midna

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Message 1 of 4
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You can try changing the Mechanical Action of boolean... Select Switch when released behaviour...!!


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Message 2 of 4
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I don't think you can do that for indicators in the block diagram?

 

I know you can if it is a control in the front panel but not in block diagram?

I tried right clicking on the indicator boolean but the mechanical action is disabled(transparent) and not an option.

 

Is there another way?

 

What I want to do is create a boolean latch within my code.

 

xxxMidna

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Message 3 of 4
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You need to be careful with terminology. The term "latch action" has a special meaning in LabVIEW and is used for controls.

 

However, you can easily achieve your desired effect using a shift register or feedback node. Here is one possible solution. SImply incorporate the logic shown before wiring to the indicator.

 

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