How to generate pulse during changing boolean value?

[Rogal]

I need to generate short pulse during changing boolean value from 0 to 1. This pulse is needed to reset counter. 

I was trying with Event Structure with Value Change but I think that I did something wrong.

Maybe sambody can give me some tips to do it in other way?

Thank you in advance.

Regards

[Omar_II]

Where is the problem?

Is it the part of detecting a change of the boolean going from F to T?

Or is it the part of resetting the counter.

The Event Structure with Value Change is a good.

What is the mechancial action setting for your boolean control?

Most likely need to be one of the latched setting "Latched When Pressed"

Post your code.

[Broken_Arrow]

Try something like the attached code - a simple Functional Global.

[Rogal]

Resetting counter is not a problem. 

Well, problem is that I don't know how exactly Event Structure for change value works. I know how to use it in other cases but not in this one.

I attach my code.

My x > y value will change once. From F to T. And then I want to generate one impulse which resets counter.

Thank you for your responds.

[Omar_II · Accepted solution]

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@Rogal wrote:

I need to generate short pulse during changing boolean value from 0 to 1. This pulse is needed to reset counter. 

I was trying with Event Structure with Value Change but I think that I did something wrong.

Maybe sambody can give me some tips to do it in other way?

Thank you in advance.

Regards

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We assumed you wanted a pulse when a front panel button (boolean) was clicked.

I am still not sure just what it is you want.

Do you want a single pulse when x is greater than 4?

You don't need an event structure for that.

[Rogal]

Yes, I want to generate short pulse when x is greater than 4. It works but I would like to use it in one while loop and use this impulse in other while loop to reset counter. And in this case it doesn't work.
I guess that impulse is too short and before signal goes to other while loop it again toggles from True to False. 

[Rogal]

I added to both loops 50 ms of timing and now everything works fine.

Thank you for your help and patience.

Best Regards.

[Omar_II]

Use a queue

[SzilardB]

Hello Broken_Arrow,

Many many thanks for this example, it helped my app to work.  

But I still have a question about this, have you hide something in the code, because I made a same one, but it is not acting the same?

When I run mine, the value stayes on, constantly, not pulses like yours.

Regards

Szilard

[crossrulz]

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@SzilardB wrote:

Hello Broken_Arrow,

When I run mine, the value stayes on, constantly, not pulses like yours.

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