In article <87q5t2$7kh$1@nnrp1.deja.com>, wrote:
>I am trying to use a while loop to read data from oscilloscope through
>GPIB card continously(lasting for a fixed time, for example,1 minute). I
>want a Timer, when it expires, the while loop will stop. But I do not
>know how to implement it.
So, you need it to count down, then I assume? Okay, you need to put a
true/false node within your for loop. Set the true case to i=1 (iteration
of the for loop) so that it will initialize one time (and be true one
time). Then, add whatever time you need for the vi to run to that
indicator (where you send a numeric value on the first iteration). Put a
greater than comparison to the timer and the additoin of the indicator and
your value. Let that be the term
inating thing on your for loop.
Now, this might present a problem with a circular reference. If it does,
you'll need to basically do the same thing, only you'll need to send the
value through a shift register in the for loop.
Harry
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