The signal is a simple 60hz sine wave. It is connected to a machine
that can be hooked up to induction motors and transformers and allows
us to look at how those effect the input signals. This is for a power
labratory at a university. The signals can get noisey but I would not
know how character
Any chance I can have that VI in LV7.0? Thanks
Okay, Lets say I have two active channels that I am using from my DAQ
board. They are both 60hz signals. I call one my reference channel
and from it I want to determine the phase of the other channel based
on the reference. I imagine I could figure this out using background
knowledge, but is the
I look around a lot to see if I can answer questions but I havent
found any yet that I have half of a clue how to answer. I have only
been using LabVIEW since Feb. Thanks for everything.
What are the chances that 9 different forms wont have any problems
with synchronicity? Should I jsut make different time delays in the
loops or something?
Its not a problem that 3 different VIs are reading from the same
non-reentrant VI and one is writing to it all at the same time? That
wont cause any weird issues?
He deserves like 100 stars, I didnt realize I forgot to do it on this
post. Thanx
This happens when I drag my event loop VIs and occurence loop VIs
around in the same way. On my occurence loops they are all set to 500
ms for timeout times.
Its weird the faster I move these forms around the screen the more of
my processor they use.
In my VI I am developing I have multiple data sources that output a
single waveform. I group these waveforms togeather to make a wave
form array. The user selects which waveform they would like to
display and they are displayed on a graph on a different form. Right
now I have each different grap
Okay, I have fixxed the bogging my computer down problem. As it
turnout I didnt have delays in my 8 plot VIs, I knew I had to have a
delay i just threw those togeather real fast not thinking. One thing
left that I have noticed that spikes my CPU usage to 100% is moving
any of the front panels aro
I am about to stop working for tonite about maybe the weekend (I am
burning out) but even when I dont do any signal generation just having
the 8 graphs open at a time bogs my computer down.I will make sure I
have at least 100ms delay in each loop. Most of my loops are event
driven loops, occurence
When I aquire the data from the DAQ card will I be forced to 16
waveform data types. I have tried to simulate this by using the
ExpressVI signal generator and creating 16 of them and packing them in
an array slows my computer down amazingly. Is there less overhead
when it is a DAQ assistant VI or
I can guess how you used the occurrences. Is there a reason you
choose to use occurences of Notifiers, I have read that it is
recommended that one uses Notifiers over occurences.
I guess my only question is, with this global function it will simply
be a VI that is not reentrant that I will stick on every plot and the
main form. Correct? Also for the real program I will be aquiring data
from an external system which will continuously be sending data to
LabVIEW. So I would
just for the record. you rule!
I fixed the focus problem by changed the window property to floating.
The only problem I have left (I have made several changes since the
version you looked at) is that when I change the comboboxes it stalls
the graphs. Would occurences fix this?
That is what I thought you were refering to. Which should bring me to
my final question. I finally have a fully working model using almost
the exact method you perscribed. My last question lies in
transporting the data to the plots. Right now I have a re-entrant VI
that has 6 simulated signal s
You have mentioned Global Function multiple times, what are you
refering too? I have not seen anything refered to as that.
I can see why you used occurances and agree that I think they will
solve my remaining problems. How do you get the refrum of an
occurance on another form and why do you put them in a shift register?
I actually got mine working with out using occurances. What benefits
would I get by using them? As of right now as can be observed in my
code, I just having everything in a while loop. I imagine this is as
ineffiecent as possible due to constant polling. Is this what
occurances would eliminate.
Okay, I have a main VI which contains two paralell while loops. The
first of which has 3 subVIs which contain a graph that upon user
request get opened. Note the main VI does not pass any data to the
subVIs. The other loop is what takes care of user events like a
button being pressed and these c
Thanks thats really similar to what I am doing its just that my main
form sends data which is causing the flashing. This design is a great
idea. Thanks a MILLION for your help and time!
I am struggling with this exact same problem of trying to show
multiple graphs in different windows. Does anyone have any examples
of how they got this to work?
I am stuggling with this same issue you posed a solution to, do you
have an example of how you got this to work or where to get one?
This still does not generate an event. It changes the value of the
listbox but does not do it using the code inside the event case
structure.
I mean programmatically raise this event. I know that if I actually
click on this list box that this event will be raised, but lets say I
want the event to be raised first thing when the front panel is ran?
Or at any other time I want? How would this be done?
How can I raise an event pretaining to a listbox such as mousedown or
keydown in LabVIEW 7? I read that something like this is possible but
I am struggling to find an example
perfect thank you very much
This is great, this will definatly help, but I do have 2 different
arrays of clusters than this will not work as well. Anyone know a way
todo this even more generally? Possible by using variants as you
Randall suggested?
Would you happen to have or know where i can find any examples of this
would you?
In method #2, will it be possible to pass different streams of data to
each VI and have them all aquiring data from their respective sources
simultaneously?
This may be a stretch here, just to warn everyone ahead of time.
Lets say I have a reentrant subVI that is a graph. You pass it data
and on its seperate front panel it dynamically displays aquired data.
Now I assume that if I want to be able to view 4 of these graphs in
seperate windows at the sam
To access the FrontPanel.On method do I just fire an event or
something? Or is there a specific way todo this that Im missing?
Thank you again for your help I am going to work on your new
suggestions. I was saying I wanted to have all windows opening and
functioning at the same time which is not possible with you
implemenation.
Thank you so much for taking the time to make those changes to my test
applications. I am really looking for two types of functionality.
First the ability to just view one form at once modally. This is no
problem. Next is the ability to have many forms open at once
displaying different informati
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