stop "whlie loop" while inside "stacked sequence structure"

[sinclair15]

Can you give me an example of a state machine like the one you described? thank you🙏

[GerdW]

Hi sinclair,

no need to ask in a ~20 years old thread when you could select the "Create Project…" entry in the File menu and choose the "Simple State Machine" template!

[crossrulz]

There is also this: State Machine

[sinclair15]

Gerd and crossrulz thank you for your response, previously I will create a program to move 2 motors with very different characteristics as well as the program, here I will create many programs with different motor movements, which will use a lot of case structures that are very stacked. One of the movements that I will make is almost the same as the raw file that I attached.

according to the instructions and examples I avoid stacked whileloops, my problem now is how to find a last value in a new program, without whileloops and without saving it, (the last value must not change before the loop has finished in a structure). how to do it? because it is an important component that must be there to run the program, I hope anyone can help, help me master, thank you very much🙏

[aeastet]

This vi is in LabVIEW 2025. Most people that are going to provide support are not using LabVIEW 2025. You should save for a previous version and save for like LabVIEW 2020. This way you get more help.

[sinclair15]

LabView 2008

[GerdW]

Hi sinclair,

thanks for downconverting your code. (Next time please don't rename the CTL file after conversion…)

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@sinclair15 wrote:

I will create a program to move 2 motors with very different characteristics as well as the program, here I will create many programs with different motor movements, which will use a lot of case structures that are very stacked. 

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No, you don't need "a lot of stacked case structures"! Use a better code architecture!

• Your "old program" is wrong because it uses way too many local variables. Ever heard of shift registers and how/when to use them?
• Ever heard of "comparing floats for equality" is wrong?
• Ever heard of "using more than one event structure per VI" is a sign of bad code?
• What's the point of event structures with a (single!) timeout event when there is no timeout defined???
• What's the point of an enum typedef when the enum only contains items "0", "1", "2" and "3"? Either use descriptive item labels or simple integer values…

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@sinclair15 wrote:

according to the instructions and examples I avoid stacked whileloops

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Which "instructions"?

Why do you want to use (or avoid) "stacked while loops"?

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@sinclair15 wrote:

my problem now is how to find a last value in a new program, without whileloops and without saving it, (the last value must not change before the loop has finished in a structure). how to do it? 🙏

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• This "last value" should not change inside the loop? Then read it before the loop! (And say loud and clear "THINK DATAFLOW!")
• Where do you need to "find" that "last value"?
• Why do you need to "find without using while loops"???
• Why do you need to handle a "last value … without saving it"???

You really need to learn how to describe/express your requirements much better.

Describing requirements correctly is the first step in creating good programs!

[sinclair15]

problem has been solved, just fix the data flow logic, thank you gerd, thank you all🙏