Report Error Visa

[inuyasha84]

Hi guys. I noticed that if in the visa resource name I set a different IP or a COM on which nothing is connected, the output is always ok. the question is how can I handle an error like this?For example an user that set a different Ip or a usb or anything on which there isn't any instrument connected?

Thank you

[RavensFan]

What device are you connecting to?  What kinds of commands do you send to it and what responses do you expect.

You should catch the error whenever you send a command and don't get the appropriate response back.

Opening a VISA port doesn't take any action as to figuring out what if anything is connected to the port.  It is just establishing a connection between LabVIEW and the physical port within the PC.

[Ranjeet_Singh]

Impossible. When you connect different com port which is not at all present then either you wont be able to read or write. May be some problem with VI itself

[Ranjeet_Singh]

Upload the VI

[inuyasha84]

hi guys.

attached there is the VI.

The comunication is opened in the "RTS" case structure.

[Ranjeet_Singh]

in 2011 please

[inuyasha84]

I have the student versione. could you tell me how to convert it into the 2011?

thank you

[inuyasha84]

done 🙂

[Ranjeet_Singh]

Initialization of VISA needs to be done outside

[inuyasha84]

crap I didn't see it. thank you