Re: Time Shareing One GPIB Spectrum Analyzer (HP6562A) Between Two VI's.

[albert geven]

An easier method than locking is to build a higher level vi that
handles complete commands (writing and reading) to the analyzer. In
this way labview will automatically schedule the first caller and put
the second (or more) caller on wait.
This synchronisation is perfect for such an application. Locking on
visa level is needed when you are running more executables at the same
time.