Programming PXI SMUs using LabWindows/CVI

[AmyJing]

Hi,

I have a PXIe-1083 chassis with 4 PXI-2535 switch matrix cards and one PXIe-4141 card installed. I am new to PXI system so I started from PXIe-4141 examples. 

I was able to compile and run NI-DCPower Source DC Current example. But when I try to read the code, there are functions that I couldn't find any documentation.

niModInstCVICust_NewCtrl()

niModInstCVICust_DiscardCtrl()

I also have problems finding documentations and command sets on how to program those switch matrix and smus. Really appreciate if somebody can give me some advices!

Regards,

Yimin

[TobiasG · Accepted solution]

Yimin,

I am assuming by the mention of niModInstCVICust_NewCtrl() that you are using CVI.

The niModInstCVICust_*Ctrl() functions are pseudo-private entry points which allow for automatic population of the Resource Name drop-down control while the CVI example is running. It is a usability feature NI provides for products which support NI-ModInst.

What version of NI-DCPower and NI-SWITCH do you have installed?

I would recommend looking at the NI-SWITCH CVI examples as well, particularly "Handshaking with an NI-DMM".

Both NI-DCPower and NI-SWITCH install help files, including sections where you can learn about the various API functions. They are also available on ni.com. Here is NI-DCPower's and NI-SWITCH's.

[AmyJing]

Hi Tobias,

Thank you so much for your reply!

Yes, I am using LabWindow/CVI 2017 for developing language. The drivers' version I installed as following. Are those the right version?

NI-Switch: 22.8.0.49363

NI-DCPower: 22.8.0.49662

Thanks a lot for the links! 

Regards,

Yimin

[TobiasG · Accepted solution]

Yes, those are the drivers you need for these instruments, and those versions are perfectly fine. It wouldn't hurt to upgrade to the very latest, though.

[AmyJing]

Thank you so much, Tobias!