IVI abort and Instrument handle close difference

[stevesteve]

I have been using the IVI steps for a NI DMM in Teststand 16 successfully. However when I want to use the digitiser function of the DMM via a Labview function (initialises, gets waveform, closes handle) the TestStand IVI step after this Labview function stops working and I get the error message that I cannot use the IVI DMM session. I also tried IVI DMM re-configuring and/or IVI DMM abort after this Labview function but still got the same error with either IVI step.

What is the difference between IVI abort and Instrument handle close?

How do I use a combination of TestStand IVI steps and Labview Instrument handles within TestStand successfully?

[NIRebecca · Accepted solution]

Hey Stevesteve, 

The sequence file may be helpful to have a look at. 

Some relevant information. IVI Sessions opened in TestStand can not be handed over to LabVIEW, as they are not the same type of reference than LV uses. However, you can create a Session Manager session in LabVIEW. If you call an IVI step with the same logical name, an open session is used.
See the example:
Http://zone.ni.com/reference/en-XX/help/370052M-01/tsexamples/infotopics/session_manager_lv/

There's also a video that shows a combination of LV module with IVI steps:
Http://screencast.com/t/7NXD1FGB

Hope this helps, 

Rebecca