case structure - Labview

[Baran]

Hello,

I have some data being generated in a "True" section of a case structure and I feed them out of the case to some indicators (and saving in some Excel files). But Labview gives me error that I should connect something for the other case, so I just gave some zero input.

However I need to HOLD the data outside of the case structure until the case structure is "True" again and then update the data.

My code is a little large and I guess I should not give it out, so I cannot upload it.

Thanks,

Baran.

[NIquist]

You need your case structure inside a loop with shift registers on the loop which pass data from one iteration to the next.

[johnsold]

You may need a shift register.  Pass the data through the false case.  That will hold the old data.

Lynn

[SteveChandler]

Can you try to make a small vi demonstrating your question/problem?

[Baran]

Thanks.

I actually did that. But that will keep the data for one more loop and the next one is the zeros that is coming from the other case.

[NIquist]

Do what johnsold said...  Don't make it a zero, pass the wire through the false case.

[Baran]

Here is an simple example.

When the Read is pushed,  the indicator should show the control value. But when the read is not pushed I want the indicator keep the last values of control before the Read button is released.

Thanks.

[Baran]

Oh the shift register works now! Thanks.

I guess it was not working well because I was just using one shift register for testing while I had two arrays, and it was mixing the two arrays.

[Darin.K]

I am a Feedback Node fan myself.

[altenbach]

Sometimes it is sufficient to simply place the indicator and save operations also inside the same case structure. No extra code needed. 😄