Reading a text file and store it in a table, guard return 0.

Hello, I have an application where I need to read the speed and rate of a text file. For this application, I use a myRIO NEITHER and I want to save the text file on the drive the myRIO aboard in the tmp folder. I simplified my request to isolate the possible problem and I will attach a sample text file and my VI is used.

Overview:

I use a myRIO project because in my real application I myRIO VI of PWM and encoder. I noticed that my problem goes away when just open the main VI and run the application in LabView. My problem then that chairs the VI on a project myRIO folder.

To address the issue:

My question is, when running the VI of the hand of a project myRIO folder everything works as it is supposed to, but when you open the text file in my Subvi, it returns 0, as if nothing is in the text file. Now if I open the VI outside myRIO se project file it works just assumed that when X = 1, it opens the text file written data in a table and then close the text file. I can't understand why he reads nothing in the text file executing the main VI of a project of myRIO and when I use run to highlight one can see it opens the text file and then returns nothing. The text "test" file must be placed in the tmp folder on board the myRIO to validate my way.

Is there a way to fix this?

I assume because I use a myRIO project I can't access the file text, or because of how LabView?

Any help is appreciated, thanks in advance!

You don't have your son wired error upward.  You're files showing error functions?

What context are you running VI when you are within the project and what context from outside the project?

My suspicion is that in one case, you run on your PC, the other on the cRIO.  Your file exists only on one device or the other.  And also that when you change your PC for the cRIO, your file path must change.  It's very strange that your watch VI access you the disk R:\.  I bet that the R:\ car n does not exist on your cRIO.

Tags: NI Software

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