Count number of iterations of a sub-VI to output accordingly

[gabrielcasano]

Hi all,

For the last few hours I have been trying to figure this out, but haven't managed, so I ask for your help please. I have a sub-VI that needs to output the next element of an array every time is gets called from the parent VI. If I there was a way to know the number of iterations of the sub-VI, then I could use this as a parameter to determine which element of the output array to return.

Thank you very much in advance for your help.

[dan_u]

You will need an uninitialized shift register to keep track of the index (or count number) in the SubVI.

Have a look at the Action Engine thread.

[SteveChandler]

That or a feedback node. Put down an increment function and wire the input to the output and one should magically appear.