Global variable value update to indicator on run time

[punee]

HI All,

I am doing some task in subvi which is giving outputs which is of string ,  numeric and booolean format. These ouputs i need to pass to indicators of main vi.

So what i did is , i conncected output of subvi to global variabel and the same global variable i connected to indicator of main vi.

But the indicator value is not updating during run time. it is updating when i stop run and then run the application.

Why is it so?. Could any one suggest how to update during run time itslef?.

I have total 26 outputs in my subvi. So is it good using 26 global variabel or any othe way to do?.

Regards

Punith

[cubz]

Hi Punith,

do you have somehow ensured that the reading from global variable is done after writing into it? That would explain why you see the value after a new run, only that it is the value from last run.

Further, having 26 outputs on a SubVi is not a good design. I suggest using clusters with their bundle/unbundle functions.

Cheers,

J.

[punee]

Yes it is true.

But how to use clusters for indicators?.

I also studied some call by reference idea to update main indicator from subvi. Is this way is good for 26 outputs ?.

Or  Can i use clusters itslef?.

Regards

Punith

[cubz]

Q: But how to use clusters for indicators?

A: Easy. In block diagram, copy your cluster with controls and then right click and select "Change to indicator". Have you done this: http://www.ni.com/white-paper/7571/en/

?

Q: I also studied some call by reference idea to update main indicator from subvi. Is this way is good for 26 outputs?

A: Not a good idea, until you are absolutely familiar with dataflow (normal wires).

J.

[Yamaeda]

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@punee wrote:

So what i did is , i conncected output of subvi to global variabel and the same global variable i connected to indicator of main vi.

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Why not connect the subvi's outputs to the main vi's indicators directly?

/Y

[punee]

Since i have 26 outputs in subi , how to conncect to indicators of main vi.

[PeterFoerster]

Bundle in the subVI, create cluster output in SubVI, connect unbundle or unbundle by name in Main VI and connect the indicators to the Unbundle node.

[punee]

I am getting outputs in sunbi in so many if condition , how can bundle this and pass to cluster.

Regards

Punith

[cubz]

If you want to hear opinions, post the subvi here, please. In a vesion 2012 or older is preferable.

[punee]

Here i attached my subvi which of only for test vi(int this i have total 6 outputs), kinldy tell me how to pass all this to main vi.

Remember my subvi is recursive subvi. so some times i may recall subvi.

Regards

Punith