Write on N6973A Power Supply in LabView

[Enrico93]

Hi everyone!

I'm working with N6973A Power Supply. I need to implement a program in LabView which can impose a current and consequently read the output voltage. I downloaded the driver and i have not problem to read the output but i don't understand how to write. I know that this is a simple task but i'm starting just now to use LabView. Someone can help me? I need to use initialize block and than visa write? Thanks.

With best wishes,

Enrico

[crossrulz]

There is likely a "Set Voltage", "Set Current", etc or similar in the driver.  Just use those.  I don't currently have that driver installed, so I can't go digging.

[cstorey]

Hi Enrico,

Have a look at the examples include with the driver.  I suspect you might have tried to use individual VIs in the driver without understanding how they might have dependencies. For example if you want to set the voltage and apply it you use 2 separate VIs.

Look at the example "\Agilent N6900 N7900 Series\Examples\Agilent N6900 N7900 Series Output DC Volts.vi" which shows you how to set the DC voltage and current limits and monitor the actual current level using a loop.

If you have trouble with that then post the code you are using and we'll try to help.

Craig

[Enrico93]

Thank you so much! In few words, the first step of my work is to change the current (with a fixed delta, using for cicle) reading the output voltage. This values must be plotted in a graph. At the end i will save current and voltage values in a txt file. Now I’m working on for cicle, if i’ve some problems i will ask you. See you soon 🙂