visa ressource + error in loop

[scalpas]

Hi

I'm writing a program in Labview 2009 to control instruments via GPIB. I initialise the instruments, then enter a loop, where I vary certain parameters (for example, I do a frequency sweep with my function generator).

My question is, how do I pass the Visa ressource and error through the loop, so that I have the correct value which enters the loop each time ?

[johnsold]

Usually a shift regsiter is a good choice.  Monitor the error line inside the loop to detect any errors.  They can be handled in the loop or used to stop the loop.

Lynn