Why can I not use certian features of NiScope using IVI from within TestStand

[Craig Heer]

Hello All:

I have posted some questions regarding IVI and 5112 Digitizer and now have things working. I still can not validate any of my configuration changes, or simulate my 5112( This would be great if this feature worked). What I would really like is to take advantage of some of the features that are present on the extensions tab of the IVI scope step type. Why is it that it tells me that I can not use the average acquisition, Auto Setup etc... These would be extremly usefull, as I do not need to write any C code if I don't have to.

[Scott_Richardson]

Craig -
If when you issue a configure and the error that is returned states that an extension is not supported, this is because the specific driver that you are using for the instrument returns a mask saying that it does not support that feature. This is either that the hardware does not support the IVI defined extension or the software driver does not yet support it.

Scott Richardson

[Michael Dozier]

Dear Mr. Heer-

I have been performing some tests since I received your question. This should help clarify what you are seeing using the 5112. The NI-Scope driver does not currently support simulation. The 5112 does support measuring waveform types, auto setup, and retrieving the scan mode. However, it appears there are some issues with using the Extensions tab at this time with the 5112. Fortunately, you can still take advantage of the extensions that the 5112 supports by using other operations within the IVI-Scope step type.

To perform the following IVI functionality supported by the 5112 in TestStand, do the following
* To measure a waveform, select "Read" from the main Operation ring control and choose "waveform" from the Waveform Type ring control.

* To perform an auto setup, choose "Auto Setup" from the main Operation ring control.
* To retrieve the scan mode, choose "Get Information" from the main Operation ring control. Select the numeric TestStand property/variable you want to store the value in from the "Sample Mode" ring control.

These issues will be resolved in a future release of NI-Scope. Please let us know if you have any further questions or issues.

Regards,

Michael