Average displacement Subvi does not refresh the data in time real host VI

Hello!

I time real host VI that has evaluate the NI 9215 cRIO block data 9073. He takes analog data and calculates the phase shift. It works well with the connected equipment and displays the results. I need to get the moving average value of phase shift, so I add moving average Subvi, where main VI entries - new value (phase shift measured) and ms and output - average value of travel time. When I run real time host VI it gives me a single data and stop get new data from Subvi. It refreshes not even values measured in real time. So the problem somewhere in the accommodation, with sub - VI. How it can be solved? How can I get real host VI with the moving average value of Subvi update running time?

Thank you.

Your problem is that you have a loop that runs until you press the Stop button inside your Subvi.  If you try to use a Global Variable that is functional, you have a few things wrong.

1. the loop should run only once.  A TRUE to the conditional stay Terminal wire.

2. the shift register cannot be initialized.  That is how he can keep the old elements in a story.  Use a first call? with a case structure so that you only initialize the table of history inside the loop on the first time the VI is called.

But if you really want to make your life easier, just use the PtByPt.vi mean.  NOR did all the work for you.

Tags: NI Software

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