Data are acted above all

Hello

I wrote the vi attached, but because of my inexperience, I do not see why the data is being acted under he went entirely.

COM 2 Share_2.vi running time slave address Stepper and measures can be entered, and the vi will work correctly when it is run.

Running COM 2 hand COM by WHILE.vi, the engine step by step will be activated as soon as a new slave address was typed and before the new value for the steps can be entered.

Running COM 2 hand COM outside WHILE.vi, there is no response to the data step.

Anyone can point out my mistake please?

Thank you very much!

In "COM 2 share COM in WHILE.vi", the code in the loop runs repeatedly.  There is nothing in your code to do wait for nothing.

In "COM 2 share COM outside WHILE.vi" 'Stepper slave Address' and 'Steps' controls are executed only once, the values read at this time there are used repeatedly in the loop.

Tags: NI Software

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