case structure with string as a case selector

[AdamTrojak]

Attach your main VI - I'm guessing there may be the issue

[jay_sidd]

i just created the example vi which attached 
so that it is simple to understand the problem !

[RavensFan]

What example?  Nothing is attached.

[jay_sidd]

the one i attached in the beginning !

[RavensFan]

The very simple one that doesn't match your screenshot in the beginning, the description of your problem, and actually executes just fine?

[jay_sidd]

this is the main code !
i am still working on it 
so it will not work and hence vi file  does not hold any importance !

[AdamTrojak]

How do you control timing of your loop? I guess the reading and writing is pretty quick, therefore the loop complete quickly so you don't have the chance to see the results. Try running it on highlighted execution, and then observe the LED indicators

[RavensFan]

The VI file does hold importance because it is the file where your code is not actually working!

Have you looked at the data coming in from the VISA Read and actually compared it to the cases of the case structure?  Did you do what I said and check to see whether any control codes or termination characters are interfering with your case structure comparison?

[RTSLVU · Accepted solution]

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@jay_sidd wrote:

this is the main code !
i am still working on it 
so it will not work and hence vi file  does not hold any importance !

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Oh my... 

Right off the top of my head I would do something like this.

[jay_sidd]

u made the day !!
kudos to u !