Simple PWM Generation

[RyuuSuzuki]

The PWM was running good when I haven't add in the temperature reading block diagram. After adding that in, the PWM signal becomes very slow. Is it because the device itself is sampling 1 point at a time for both reading and writing which then slows the system down?

http://forums.ni.com/ni/attachments/ni/170/880111/1/1.jpg

http://forums.ni.com/ni/attachments/ni/170/880111/2/2.jpg

[Dennis_Knutson]

Why not put them in separate loops?

[RavensFan]

Probably.

Try wiring the Stop control into the Stop? terminal of the express VI.

[RyuuSuzuki]

I tried wiring stop control and it didn't work. Putting them into seperate loops is working but I'm expected to use just 1 loop

[Dennis_Knutson]

What DAQ device. Single point read or write is slow. If you have a hardware timed device, you should be using that.

[RyuuSuzuki]

I'm using myDAQ

[Dennis_Knutson]

With software timed digital, it's a pretty poor choice for pwm. You might also want to try LabVIEW functions instead of the formula node.