File Dialog error in cRIO Project

[d4nvjpl0ng4n]

Dear all,

I am working on a project with CompactRIO but I got a problem with File Dialog.vi in LabVIEW. When I put my *.vi outside of the Hardware (cRIO) it work properly. But when I put my *.vi inside the cRIO, nothing happens. Please help me with this small problem.

Thanks all

[GerdW]

Hi d4,

you forgot your cRIO is a computer of its own! And you forgot it is "headless"!

- The cRIO has NO ACCESS to the harddrive in your Windows computer so it just don't know where to look for the path "D:\…"!

- The cRIO has NO MONITOR ATTACHED so it cannot even display a FileDialog (or any other UI at all)!

A VI always runs in the context of the hardware target it is located in the LabVIEW project.

And such VIs have to obey the limitations of the hardware target they are run on…

[d4nvjpl0ng4n]

Dear GerdW,

Thank you for your quick reply.

Btw, there are any solutions for me to choose a virtual folder as a path? Hope you can still help me with this problem.

Best Regards,

D4n

[GerdW]

Hi d4,

what is a "virtual" folder? Where is the folder located?

- With a cRIO you can use any folder that is present in the cRIO file system: anything under the "c:" path. (Use MAX or a webbrowser to check the file structure in your cRIO!)

- With a cRIO you CANNOT use any file dialogs as the cRIO has no display or UI - you most likely will use a constant path (or a path generated by algorithm).

- With a cRIO you CANNOT access your PC's harddrive…

[d4nvjpl0ng4n]

Dear GerdW,

The "virtual folder" means "Data" folder as the below picture. And when I check the "Current VI's path", it shows me that "c:\ni-rt\startup\Test_1.vi". So the path of "Data" folder is "c:\ni-rt\startup\Data", right? 
Thank you so much

[GerdW · Accepted solution]

Hi d4,

the virtual folder in the project is not related to a path on the cRIO.

In my cRIO projects a I also use virtual folders in the cRIO part of the project - and they all just collect files located on my development PC…

When you want to access certain files (like configuration settings or similar) you can include those files in the AppBuilder settings for your RTEXE. Then those files will be copied to your cRIO, and are to be found at c:\ni-rt\startup\data. (I'm not quite sure on this path right now, as currently I use a cRIO9066 employing a different file system.)

[d4nvjpl0ng4n]

Thank you so much GerdW, 

I will try to work with it for a time. Then if I still get trouble with it, I will ask later. Thank you again 😘

Best Regards,

D4n

[d4nvjpl0ng4n]

Dear GerdW, 
could you help me to solve this problem in this link
http://forums.ni.com/t5/LabVIEW/cRIO-WEB-SERVER-ERROR/td-p/3281873
It is urgent! please help me.. thank you so much

[GerdW]

Hi d4,

remark on your last post: it is considered rude behaviour to bump threads for no good reason!

When you want to have more attention to your other thread you should bump that other thread and not this one here!

To answer your question: No, I can't.