How to on a switch for 5seconds and then off?

[JiaLuo08]

Is it possible to on a switch for 5 seconds and then off? The switch is controlled from myRIO on Ni data dashboard.

[GerdW]

Hi JiaLuo,

Is it possible to on a switch for 5 seconds and then off?

Yes.

Spoiler

As a switch is a control you need to use a local variable of that control. Set it to TRUE, then wait for 5s, then set it to FALSE.

What exactly is your problem? Where are you stuck? How does your VI look like? (And please attach code (aka VIs or snippets) instead of pure images…)

[JiaLuo08]

Hi GerdW! Here's the program.

[GerdW]

Hi JiaLuo,

no, there is no "program"! All I see is the LabVIEW project file, which is "just" a description of the VIs contained in your project! (Hint: open the lvproj file using a text editor…)

To repeat: Please attach code aka VIs or snippets!

[dhans]

Hi JiaLuo,

This is what i saw. Cannot open vi

[JiaLuo08]

Hi! Here's the program. Thanks alot.

[GerdW]

Hi JiaLuo,

I'm sorry, but that's a huge mess with a lot of boolean indicators. And even more local variables in a huge BD without any (recognzable) program structure…

How should we help you when we don't know what you are talking about?

Which switch should be switched?

Clean up your BD.

Replace locals by wires.

Use some meaningful program structure.

Use descriptive labels for controls/indicators!

Then ask again…

[JiaLuo08]

Hi, sorry about vague info given. I've attached an example, I'm trying to control the switch such that, it was in the initial state (off). When i switch it to on, the LED will on only for 5 seconds and then turns off automatically, and when it changes state again the same process will occur again; on LED for 5 seconds and turns off.

[GerdW]

Hi JiaLuo,

When i switch it to on, the LED will on only for 5 seconds and then turns off automatically, and when it changes state again the same process will occur again; on LED for 5 seconds and turns off.

When you have problems to implement such a basic wait statement:

I really advise you to take those FREE online training resources to learn LabVIEW!

Still I would recommend to use some better programming schemes in favor of the sequence inside the case structure. Use statemachines or maybe queue-driven message handlers…

[JiaLuo08]

Hi GerdW, could u save it as 2014 or earlier versions? because i'm using the LV2014 version n can't open it. Thanks!