Acquire data with simple 5V trigger

[asb9ab]

I have a 5V ananlog signal that I want to use as a trigger.  This is an on/off signal.  I have used several different setups of the DAQmx Trigger.VI with moderate sucess.   I am able to trigger the start of my acquisition, but when my 5V signal goes off, my data acquisition does not stop.  I've been able to acquire signals for a finite time using the trigger with a properly set DAQmx Timing.VI, but I would like to record data when my signal is high and stop when it goes low.  Is a loop my only option?  Thank you. 

[Scott_G]

Just some initial thoughts...

If you have some counters available, you could generate a sample clock with your counters and use your "Trigger signal" as a gate for the counter.  Then your acquisition would be running at all times, but you would only receive a sample clock when that trigger is high. 

This may not be the best way, but it would work and should be fairly simple to implement.