Hello Mark,
Thank you for posting to the discussion forum. I see that in
your code you are trying to generate a periodic analog output signal by using
the timed loop.
I have included a link to the help file on the Timed Loop.
You can use this as a reference.
Timed Loop
The timed loop is often used when you want loops to have
multi-rate timing capabilities, precise timing, feedback on loop execution, timing characteristics that change dynamically, or several levels of
execution priority.
The value that you have wired to the Period (dt) specifies
the amount of time that elapses betwen two subsequent iterations of the timed
loop. The unit of the period changes depending on the time source you select.
Take a look at the following link for better understanding of what needs to be
wired to the node.
Nodes of the Timed Loop
With regards to your application, if you want to write to
your AO channel periodically, it would be more efficient to use a while loop. Perhaps
consider moving your create channel, timing, and clear task outside the while
loop. This will save processing time so you do not have to create and destroy
the task every time it executes the loop.
Take a look at our shipping example. In LabVIEW, go to Help>>Find
Examples. This opens NI Example Finder. In the Browse tab, Hardware Input and
Output>>DAQmx>>Analog Generation>>Voltage, you will find
various examples on how to write to your analog output channels.
Take a look at these resources and let us know if you are still
running into issues.
Regards,
Sandra T.
Applications Engineer | National Instruments
