Error recording data from API into LabVIEW text file

[mars23]

I am trying to create a data logger. When I execute the program on myRIO remote device, I am not able to get data from the API into the text file. Could you please guide ? what is going wrong ?

[GerdW]

Hi mars,

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@mars23 wrote:

When I execute the program on myRIO remote device, I am not able to get data from the API into the text file. 

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Did you debug your VI?

Does an error occur while running the main loop?

Do you create a VALID file path?

Do you get a VALID file refnum?

Is there a reason to set the file access to "write-only" instead of default "read/write"?

How do you run the VI on your myRIO? Do you run the VI from within the IDE or as a startup.exe on your RT target?

How do you set reasonable values for the FP controls when running as startup.exe? (I already told you the myRIO runs headless!)