Several entries of stream serial

I try to display the results of two RS-232 different instruments that operate asynchronously with no handshake.  Each counter (a scale of weight one and the other a DVM) update at different speeds.  I want to enjoy them every 100mS and show the values at that time.  The problem seems to be that when I use the attached vi the DVM puts more data in the buffer to the scale. When the while loop to extract data out of the buffer, it's expired and two data streams are way out of sync at this time here.

I tried using the buffer flush visa but have not been able to make it work.

What I have to do is basically-

When the timer fires the while loop, go get the latest data of each instrument and display the data.  I didn't need all that has passed before that date.


Tags: NI Hardware

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