questions concerning waveform display

[fragrance2008]

Hi folks,

I am in trouble again. I try to modify one example to achieve my own goal. But there are some questions I am confused.

I want to display a voltage signal with 0.5 V offset and 1 V amplitude from multimeter.In the labview VIs, I have to choose 'DC Voltage' in the 'Function' controller, but the data can't display correctly when I chose 'AC Voltage' (the range displayed is 0 to about 0.35 V).What's more, the graph in 'Waveform Chart' looks strange, I want to get some signal like Sine signal, but I don't know how.

Here is the VI front panel:

[fragrance2008]

P.S: I am crazy about these basic questions. I don't know much about labview and when I have this kind of questions, I try to look for 'labview help' view, but it doesn't help much in most cases. I have to learn labview by my own, but I really don't know if there is some other basic manuals that can help me. Then I don't need to ask these silly questions to bother you.

[Petric]

HIFirst try to make a right click on the diagram and chose properties. Or you have somewhere a time then you can use instead an xy-Graph

Good look!

[Dennis_Knutson]

I'm not sure if your problem is even LabVIEW related. I'm not that familiar with the instrument you have. What is the scan rate for multiple readings? What is the frequency of the sine wave you are trying to capture? A thorough understanding of the instrument manual is a requirement before using any LabVIEW driver.

You said you modified some example code but did not provide the code. If you think there is a bug in that, you need to attach the actual VI and not an image of the front panel.

[fragrance2008]

Hi Dennis Knutson,

Frankly I am not sure how to change the scan rate of the multiple readings.  Is it the 'sample count' controller in the front panel?

The frequency of the sine wave i use is 10 Hz, just for testing. 

The actual VI is attached here: