Are you wanting to set default conditions? One simple way is to let
LabVIEW handle this for you. Make sure that all values are set to the
proper defaults and that all controls/indicators that you want hidden
are hidden and then go to Make Current Values Default under the
Operator menu. This
I'm not sure how you're passing your DAQ data from the DAQ to the file
writing portion of your algorithm, but if you use a queue you could
easily add an entry from the captured user event to the queue so that
it is written to the file in sequence.
If Altenbach's answer has been helpful then you should give him four
stars.
While it's not clear as to exactly how your program is set up, you
will clearly experience difficulties with this type of setup. I
suggest that you utilize the Timeout of the Event structure as your
timed loop. If you'll set the timeout to 1000 ms and put your code to
update the graph inside the
Why not just pass a reference to the subvi? With a reference you can
update indicators on the front panel of the main vi from the subvi.
In its current state your vi is very difficult to read. I don't
understand why you have the sequence structure in parallel to your
main loop. This appears to be an initialization stage but could cause
problems since it is running in parallel. I think, though, that you
may have already run into
The while loop will only process as fast as everything that you are
doing within the loop. Without seeing your code it is difficult to
determine what might be causing your slowdown. I suspect that the
problem is likely with your array handling. If you'll post your code
you will receive more help
Event structures are not intended to be nested. I suspect that your
problem can be easily handled without nesting the event structure.
There are several possible ways in which this can be handled depending
upon exactly what you are trying to accomplish. With a more detailed
description of what
There are several ways that you can do this. Since you apparently
already have all of these as front panel controls (this may not be the
best way to do this for your GUI), one very simple way is to put the
desired values into the controls and then make this the default. You
can programmatically
I agree that always was a little strong. There are many instances
where the timeout could be avoided. However, in my experience it is
good practice to include the timeout in most instances as it
eliminates the possibility that you get stuck endlessly waiting for an
event to occur and you don't
If you set the timeout then if the time is expired the timeout event
will execute. This can be an empty event or you can put appropriate
code, depending on the application. You should always include the
timeout event in your event structure.
Does the program run properly when you just press the run button
instead of run continuously? I try to avoid using run continuously,
even during development, and instead program my own run continuously
with a button on the front panel which is monitored to determine when
to put the program into
I've been having problems with the forum (I can't see recent posts).
This is why the test.
I'm still on LV 6.1 so I can't read your vi. I would be happy to take
a look at it if you would repost it in 6.1 format.
Assuming that your data has a Gaussian distribution then the Gaussian
(normal) curve is defined by the mean and the standard deviation, both
of which can be found using the Standard Deviation and Variance
function under the Probability and Statistics portion of the
Mathematics menu.
Based on your
All of these should be present in your LV installation. If these are
absent from your installation then I suggest that you reinstall LV so
that these vi's will be installed.
Ed,
Thanks for correcting me. Since I install LV and NI-DAQ at the same
time I tend to think of them as a single install.
John
I expect that switching will work fine for your application. Try
changing the boolean control to switching (you do this by right
clicking on the control and selecting the appropriate switching
action). Most likely this will work for your application. Just make
sure that you change the value
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