Hey dharyl,
my recommendation - post your questions in english - so their are a lot of more LabVIEW Developer that can answer your question.
Could you explain your application a little bit more in detail?:
- Whats the context of the error (Did you use VISA API ...)
- What is your LabVIEW Version and the Version of your Drivers
- Could you post your VI?
I hope we can help you with your Error.
Best regards
LoCa
PS: The LabVIEW Forum is a better place to post your question than the Quick Drop Enthusiasts Community page...