Change the values when running

[Liidle]

Hello,

I have a problem with the program.

Since the program starts to run, I can't change the value when running.

Any ideas?

For the details, I attach the Vi and the pictures.

Thank you guys

[GerdW · Accepted solution]

Hi Liidle,

did you take the free beginner courses offered by NI to learn LabVIEW?

Why are there so many local variables in your main VI?

Why are all those control terminals unused in your code?

Why don't you resize the IndexArray functions to index more than one element?

Why don't you clean up your code?

Why do your subVIs only use default icons?

Why do you need an additional subVI to build an array from the outputs of the other subVI?

Since the program starts to run, I can't change the value when running. Any ideas?

Why are parts of your code outside of loops?

THINK DATAFLOW!

(edit: fixed typo)

[Liidle]

Hello,

I put the code outside the while, that's the reason why it doesn't work.

I will look at the beginner course.

Thank you for your advice

[Bob_Schor]

A show of hands -- how many people would start programming in c, or matlab, or visual basic, or python without taking a course, viewing tutorial material, or reading a book?  [No hands?].  How many would just "jump into LabVIEW" because "How difficult could it be, it's all pictures?"?

That's actually an unfair question, as I've been to a number of Travelling Road Show presentations by NI (Sales?) people who do just that -- get a bunch of (usually undergraduate) students in a room, give them a simple DAC device, and show "how easy it is to get data from this device using LabVIEW", strongly implying you don't need to "learn anything", it's all "intuitive".  Grrrrr ... I get to try to "clean up the mess".

Bob Schor

[JensG69]

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@Bob_Schor wrote:

A show of hands -- how many people would start programming in c, or matlab, or visual basic, or python without taking a course, viewing tutorial material, or reading a book?  [No hands?].  How many would just "jump into LabVIEW" because "How difficult could it be, it's all pictures?"?

That's actually an unfair question, as I've been to a number of Travelling Road Show presentations by NI (Sales?) people who do just that -- get a bunch of (usually undergraduate) students in a room, give them a simple DAC device, and show "how easy it is to get data from this device using LabVIEW", strongly implying you don't need to "learn anything", it's all "intuitive".  Grrrrr ... I get to try to "clean up the mess".

Bob Schor

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That's true - cannot express it in a better way!

Jens