How to show 2nd transfer Function in Lv 7.1

[fanny]

hello,i have a problem with showing the result of second order transfer function in LV chart. with matlab, i have a result like this pic bellow. this pic is a result from second order TF "1/(S^2+0.4S+4)" could you help me if i want to show the same graph in LV chart from that second order TF? i'm still using LV 7.1 trial version thank you for your attetion.

[Megan B.]

Hi fanny,

What part are you having trouble with in LabVIEW?  The easiest way to get your data into a chart would probably be to get an array of the values of the function and just wire them to the chart.  If you are having difficulty implementing the function in LabVIEW, this is a good case for the Formula Node.  The formula node is a fairly easy way to implement complex mathematical functions in LabVIEW.

You may also be interested in the PID toolkit for LabVIEW which can help you implement sophisticated control algorithms.

Hope this helps!
Megan B.
National Instruments