problem with port GPIB

[za3im_ensa]

Dear all

Hello

I'm trying to control a measuring instrument via the GPIB port. the control interface works fineexcept that: my program runs in a loop, the problem is that from the third execution of the loop the program does not give the desired results and generates the following error message: RSZV is Channel Displayed.vi

thank you 

[Taki1999]

Identify your instrument and post your code if you want to get effective help with this issue.

[za3im_ensa]

my intrument is : Rhod & Schwarz  ZVR

The error code is : 1073481729

[Taki1999]

And how about posting your vi or a snippet of your vi which shows what you're doing in your loop?

That error code looks like a custom error code so posting the VI which generates it may also be necessary.