Arbitrary waveform generation and looping that waveform

[injimamul]

Help required, if anybody knows how to loop this waveform continuously! I tried to make this waveform using arbitrary wave generator VI. I am able to make the waveform but cannot loop it continuously. 

Help in any form will be appreciated. Thanks!

[GerdW]

Hi inji,

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@injimamul wrote:

Help in any form will be appreciated.

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You VI is huge and can be simplified like this:

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@injimamul wrote:

I am able to make the waveform but cannot loop it continuously. 

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Just output the waveform again. What is the problem?

[crossrulz]

What are you trying to loop this waveform on?  A DAQ analog output?  A function generator?  Or are you just trying to repeat an operation in software?  We need a lot more context for what you are trying to do with this waveform in order to actually help.

[injimamul]

Thank you for replying.

I want to continuously loop the waveform. When the waveform ends, it should start again from the beginning, like all the inbuilt waveforms present in labview.

[GerdW]

Hi inji,

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@injimamul wrote:

I want to continuously loop the waveform. When the waveform ends, it should start again from the beginning, like all the inbuilt waveforms present in labview.

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No "inbuilt waveform" does "start again from the beginning"…

Create the waveform, then "play" it in a loop.

You still don't explain where you want to play/output the waveform!?

[injimamul]

Yes, I tried to loop it using a while loop 😐.

Sorry if I being lame. I want the waveform to repeat periodically. Also, what is the process to change the units of time.

I want to get the output of the waveform using a NI USB 6001.

Thanks again!😊

[crossrulz]

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@injimamul wrote:

I want to get the output of the waveform using a NI USB 6001.

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There's the key information I was looking for.  Luckily for you, there is a DAQmx Write property called Regeneration Mode.  Just set that to be "Allow Regeneration", write your waveform to the DAQmx task, and then start the task.

NOTE: This VI was based on having multiple channels in the task.  Hence why Waveforms is an array.  It will still work with a single (scaler) waveform.

[injimamul]

Could you please share the VI file of this?

Thank you so much. I cannot believe of getting such great response in this short period of time. 

Keep helping sir!

[RavensFan]

Save the PNG file to your desktop.  Then drag that file into your block diagram.  If you are using LabVIEW 2019, then you'll have the code!

[injimamul]

Sorry, our institution has provided us with the 2013 version. This feature is not working in this version.