10-10-2006 03:27 AM
10-10-2006 03:41 AM
Systems that change quickly or have complex behavior require faster control loop rates
It all depends on your process and the settling time you expect
10-10-2006 04:10 AM
10-10-2006 06:15 AM
Hey RT,
Do read this simple tutorial on PID
It should answer your questions to an appreciable extent
I am not sure about Ti, but Td does depend on loop time.( if loop time is too slow, your Td can make your system unstable)
Hope this Helps
regards
Dev
10-10-2006 06:26 AM
10-10-2006 08:56 AM
10-11-2006 08:13 AM
Hi RT,
Concerning to the loop time to take, as dev said it depends on your application, .....but you getting the values from the sensors every 50ms, so i would suggest to take this also for the loop timing!
Concerning Ti and Td, they will be handled as you set them, sure there is a relation between them and the dt, because of the digitalization (you are working with discrete values). But this all will be handled in the background of the PID control.
Regards, Christian
10-11-2006 10:44 AM
10-11-2006 11:18 AM