How to operate the Subvi?


I use a VI instrument control and I used a Subvi to begin feeding after a certain point. I created a simple model of two-lane in the Subvi which includes just as an input error and mistake them as output connected to the respective terminals to VI main. The Subvi has 5 entries of order I made the default values so he will always perform with the values. These values act as an input for the power supply I'm controlling with the Subvi.

Now when I run my VI it does not start the sub VI, it won't run the control values and gives 0 input to the PSU, so it won't work. I want that sub - VI to run when I run my hand VI. Am I missing something? Sub - VI works perfectly when I try to run it separately.

That many things should be done when we connect all Subvi in primary VI.

Thank you.



Your problem is that you have what we call racing conditions.  Learn to think in data flow.  A function will run when it has all its entrances and will display its data when it is done running.  So the only variable local waiting to run?  NOTHING.  Thus, they work immediately, return the default data.

The solution is quite simple, use instead the son.

Tags: NI Hardware

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