charts

[Labviewuser3]

is it possible to create chart the scrolls in real time? i use the "express chart" but the scrolling is dependant on the signal samples.

another problem is when i attached a simulated USB DAQ it will only display a single sine wave (it does not scroll)

any help would be great

[RavensFan]

Yes, but it is somewhat dependent on your acquisition rate.  You can acquire all available samples and send them to the waveform chart.

For more help, you will need to post your VI so we can see how you have your DAQ tasks set up.

[Labviewuser3]

is there a way to post images or VI's on this forum?

[GregFreeman]

when you hit reply, scroll down...theres a link that says add attachments.

[Labviewuser3]

Thanks mate

attached is the VI

quite simple

[GregFreeman]

Is that a watered down version of your code or the real thing? You are going to need some sort of loop around it in order to create a sine wave that repeats

[Labviewuser3]

my apologies but im only beginning to learn labview. yes it is watered down but the elements relative to the quiestion are in a while loop the rest are just examples from other tutorials

[CWolf]

Labviewuser3,

I am confused by what you mean by wanting your chart to scroll in real-time.  Do you mean that you want the user to be able to scroll the chart?  Please describe a little more what you would like to do. 

Thanks,

Christina 

Applications Engineer