How to read file before executing everything else in VI
I am using the "Read from measurements file" .vi to read read in a .lvm file containing the data I want to use in my VI. I have two different files I need to read into the VI. After I click "run" the prompt comes up and I select my desired file, then the other prompt shows up, along with everything else running in the VI which is in a while loop, but I do not want anything to run in the while loop until the 2nd input is selected.
Is there anyway for the program to wait until those two files have been read in?
These are the "read from measurement file" vi's that I want to input the data with before having everything execute in the VI.
Solved!
Go to Solution.
Attachments:
Batch Training (2).vi 87 KB
jcarmody wrote:
It's a slight misstatement to call using the Error Out an "easy fix". That's the proper way to control execution order in LabVIEW, while using a Sequence Structure is a "fix".
Actually, the correct way would be to get rid of the local variable and turn the array control into an indicator or eliminate it completely. Is the array control even shown on the front panel?
While the error out is the second choice, it could possibly still lead to a race condition. Since the start of the while loop and the writing to the two local variables can occur in parallel righ after the last file dialog has completed, the error out alone is not 100% safe (well, it probably is, but why take the risk ).
cmersits,
Please show us your code so we can provide some guidance. I have the feeling that you are doing this way more complicated than needed.
LabVIEW Champion . Do more with less code and in less time .
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