Error with "on-the-fly" controls in waveform generation

I am trying to output a waveform in which I can change amplitude while the VI is running. When trying to do so, however, I am allowed to change the amplitude only once, and then I get error #-10880. What does this mean? I am using AO Write, and placing the waveform calculation and generation inside a sequence structure, with a wait statement, in the hopes of giving "changes enough time to take place".
Thank you.

jmarotta wrote in message news:<[email protected]>...
> I am trying to output a waveform in which I can change amplitude while
> the VI is running. When trying to do so, however, I am allowed to
> change the amplitude only once, and then I get error #-10880. What
> does this mean? I am using AO Write, and placing the waveform
> calculation and generation inside a sequence structure, with a wait
> statement, in the hopes of giving "changes enough time to take place".
> Thank you.
Hi, Jmarotta,
I am not very sure how to solve your problem, but the error #-10880 is
"updateRateChangeError A change to the update rate is not possible at
this time because when waveform generation is in progress, you cannot
change th
e interval timebase, or when you make several changes in a
row, you must give each change enough time to take effect before
requesting further changes."
You can find this in the help/error code/Data Acquisition Vis... Hope
this would help. ^_^
Regards,
celery

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