Having trouble initializing all values of the lecroy wavesurfer 454 scope

[Matchur]

I am trying to write a VI that configures my lecroy wavesurfer 454 scope, but I'm getting some inconsistencies.  One of my problems is that I am running the Lecroy wave series configure time base VI, which I believe comes with Labview, and when I wire a timebase of 50 ns in, when I run the program, sometimes the scope says it is taking 500 samples per second, and other times it says it is taking 1000 samples per second.  I do not understand this.

Second, I would like to know how to configure the scope to start with a certain vertical setting, and also not to have variable gain, because when I run my configure scope function, these two things are out of my control. 

Thank you for your help, and let me know if I can make anything clearer.  My code is attached.

[Sputnikrent]

Hi Matchur,

There are instrument driver VIs for the Lecroy 454 available for download from IDNET, have you tried using them? They can be found here. Let us know if this will work for you.

[alanjb]

Hello Matchur,

Alan from LeCroy Tech Support here...

I see that you are using the LeCroy Wave Series driver.  The sampling rate that the scope will use depends on 1) the timebase that you configure, and 2) the memory length you configure.  Your scope has 2 or 3 settings for memory length, (go to the timebase configuration screen to see them).  When using the driver, wire in one of these values to the "Maximum Sample Points" input.

The scope will start up in the same configuration that it was shut down. Use one of the VIs to save and recall a panel setup to most easily recall a setup that has specific vertical gain settings as well as non-variable gain.  These VIs are found in the Utility function palette.

Best Regards,

Alan