To generate sine curve using sine pattern.vi

[jaeguyoo]

I tried to generate sine wave to provide sine curve to the motor. I used sine pattern.vi and the vi located before the while loop. I could not put it inside 'while loop' to change the amplitude of the sine curve while the program runs. What do I have to make some changes in the program to provide different values in 'sine pattern.vi' while the program runs?

[Julie S]

Take a look at this previous post:
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RNAME=ViewQuestion&HOID=50650000000800000037950000&ECategory=Motion

It answers a similar question. Hope this helps-
Julie

[algames]

Jae,

Looking at your VI, it seems that what you want to do is update the sinewave generated on the fly. Try using the Point by Point functions to generate a sinewave, they will give your the most flexibility. I am attaching an example that generates a sinewave point by point. If you change the value of the frequency control, you will see that the frequency of the waveform will change on the fly.