Controlling a Keysight (Agilent) N8921A DC Power Supply Using IVI Driver

[diarmaede]

All,

I am working with an Keysight/Agilent N8921A DC power supply.

The IVI subVIs that are available to me are "Configure Voltage Level.vi" and "Configure Current Limit.vi." When I set values for voltage level and current limit, the power supply sets the proper voltage level, but sets the current level to zero, as though it was expecting a command for the current level, not the current limit. I have tried all the available subVIs I can find in the "DC Pwr Supply" folder, but I cannot seem to find one that sets the current level.

Has anyone written code for this power supply using IVI drivers? If so, could you post a snippet?

Thanks,

[பரத்_குமார்(bharathkumar)]

Hello,

Have you tried the SCPI command manual for any current level. Maybe you can write it using VISA write with the command. you cannot expect all function in drivers.  

[aeastet]

Did you look at this page?

http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=23574

[diarmaede]

The plug and play driver works perfectly.  We are hoping to transition to IVI drivers to make expansion and reuse simpler. But if they lack basic functions like setting current level, we may have to rethink that strategy.

[RTSLVU]

Forget the IVI drivers, I have never had good luck using them

You are probably going to have to make your own drivers for that Agilent power supply like I did using the SCPI commands in the manual

[diarmaede]

Could someone please post a link to the SCPI Command Manual?

I found this

Thanks

[RTSLVU]

Doh!

[RTSLVU]

I usually start with the manufacturers website when I am looking for documentation or drivers?

[diarmaede]

Yes, I downloaded the Keysight manual. I just wasn't sure if that was the exact one that people were referencing.