DAQmx Output Voltage repeats when it shouldn't

Hi all,
I'm having some trouble with the analogue output channel of my NI 6221:
When I execute the code below It doesn't do anything, so I added a "Wait on completion" between the play and the stop.
When I execute the code then, it runs the sequence I programmed before until the end of time.
I set the task up for continuous sampling and I guess that might be the problem. Is there an easy way of setting it up to run just once, or do I have to count the samples programatically and enter the number to the task by property.
Any help is greatly appreciated.
Attachments:
DAQmx.png ‏17 KB

Hi jak888
I would just add a property node for timing to change from continuous samples (i.e. you can find it in the Measurement I/O > NI-DAQmx palette Timing node) where you can specifi sample timing to Finite Samples or you can use DAQmx timing for timing settings.
I also poste a picture to see how does it look loke.
If it would not work please let me know
Attachments:
img.jpg ‏33 KB

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First, I have to ask, did you write this VI?
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Everything that happens repeatedly would be in the while loop. The front panel Stop button is what ends this loop.
Anything that has to happen before the program ends like closing out tasks happens after the while loop (either by wires for dataflow or in 3rd frame of a flat sequence structure. With this, you should be able to reset your tasks so they output a zero voltage from the analog outputs before the tasks are closed and the program ends naturally.
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To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

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-----Original Message-----
From: Rottier, Pascal [SMTP:[email protected]]
Sent: Friday, October 09, 1998 10:53 AM
To: Fouche, Jaco
Cc: Forte Users Mailing list
Subject: RE: AfterValueChange event trigged when it shouldn't be...
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Hi there,
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To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive
<URL:http://pinehurst.sageit.com/listarchive/>
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

DAQmx Output Voltage repeats when it shouldn't

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