Measure Supply Voltage Continuously

[Lily3000]

Hello. I am driving motor with LabVIEW and I record some data. I was recording input voltage connecting voltage probe to power supply but recently I realized that I can do this inside LabVIEW. I am using CPX400 power supply. Can someone help me me how I can record supply voltage continuously during 10 s, while I record current with current probe? Thank you 

[GerdW]

Hi Lily,

---

@Lily3000 wrote:

Can someone help me me how I can record supply voltage continuously during 10 s, while I record current with current probe?

---

Put the communication with your power supply in its own loop and read the data as long/often as you like (and is supported by that device)…

[NIquist]

Have you installed the LabVIEW drivers for your PS?  CPX Series Bench/System/ATE Programmable DC Power Supply | Aim-TTi (aimtti.com)

Maybe there are examples with the drivers that you can use or modify?

[Lily3000]

Hello. Yes I have installed drivers. 

[NIquist]

Looks like there's an example in there that allows you to set some parameters and reads the output voltage.  All you have to do is put that code in a loop and connect a chart to the Measurement VI.  You'll want the Initialize before the loop and the Close VI after the loop.  Add a Wait.vi in there too, to throttle the loop speed to whatever you need.

[Lily3000]

I don't see relevant examples for me there. Can you please show me how to put it in a loop and continuously measure voltage from the supply?