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LabVIEW
Error 50103 occured at DAQmx Start Task.vi
It is hard to tell if your vi is operating the way you intend it to from your description.
Both of the tasks you are creating will race to start at about the same time (tab control isn't doing anything but hiding front panel indicators). When one task starts it reserves the timing resource, locking out the second task (whichever one that happens to be).
If it's going to be on the same device you may as well get both measurements in the one task and separate the two waveforms into two different windows/files if you really want to.
You can use the "Tab Control" to index the waveforms coming out of the DAQmx read, and to select which text file to save your data too.
The only problem with doing it the way I've shown (in the 2nd image) is that if the user changes the tab during data acquisition, logging will instantly switch from one channel to the other. If you put the 'Tab Control' outside while loop though, the tab selected at the start will stay until the acquisition is finished. You may want to disable the tab control to prevent it being changed during acquisition. Like I said, it's a bit difficult to tell exactly what you're trying to achieve from your description.
(I would just record both and display both temperatures in the same chart).
Both of the tasks you are creating will race to start at about the same time (tab control isn't doing anything but hiding front panel indicators). When one task starts it reserves the timing resource, locking out the second task (whichever one that happens to be).
If it's going to be on the same device you may as well get both measurements in the one task and separate the two waveforms into two different windows/files if you really want to.
You can use the "Tab Control" to index the waveforms coming out of the DAQmx read, and to select which text file to save your data too.
The only problem with doing it the way I've shown (in the 2nd image) is that if the user changes the tab during data acquisition, logging will instantly switch from one channel to the other. If you put the 'Tab Control' outside while loop though, the tab selected at the start will stay until the acquisition is finished. You may want to disable the tab control to prevent it being changed during acquisition. Like I said, it's a bit difficult to tell exactly what you're trying to achieve from your description.
(I would just record both and display both temperatures in the same chart).
Message Edited by Troy Kujawski on 06-01-2007 02:39 PM
Message Edited by Troy Kujawski on 06-01-2007 02:58 PM
