Voltmeter giving me strange readings once I put the msoRead block in a loop?

[crash_override]

I have this simple code here. 

 

It readings the voltmeter 50 times and then after it does an average. The problem is that putting msoRead gives crazy whacky readings when I put it into a loop like this and I have no idea why. I'm using scope channel 1 and have the positive and negative pins in parallel with a physical voltmeter. The readings are jump quite a bit when outside of the loop but they are atleast +- .1 off which I can deal with by averaging, but I can't deal with values like .0003 when it should be reading .4 - .6. Any ideas? Thanks for reading my question!

[JColvin]

Hi @crash_override,

I think this may be because the MSO Read VI doesn't actually "read" the analog data; the description states that it transfers the data from the instrument. I'm not sure if it then clears out the data from the Instrument, but since you are not getting new measurements, that may be why you are getting strange data. You may want to also include the MSO Run Vi (or however you have your voltmeter data measurement happening) to keep collecting new data, similar to how it is done in the image of the while structure I have attached.

Thanks,
JColvin

[crash_override]

Ok! I used to have it in there but I guess I moved it out because I was tearing my hair out. I will try that tomorrow and report back. Thank you very much.

[crash_override]

Ok! I used to have it in there but I guess I moved it out because I was tearing my hair out. I will try that tomorrow and report back. Thank you very much.