Hello guys. I am building one labview (8.5) aplication to control 2 ovens temperature. I am using two PID controlers to control each oven separately.But what hapens is that after i establish one value for the Kp parameter (apliyng the Ziegler-Nichols rule), i made one temperature test with Ti=200s and with Ti=0.1s and i was expecting that the final error(steady state error) of the temperature should fall(thats one control rull , when you decrease the Ti value the steady state error decreases).
So my question is , can this beying appening because the PID's (for both ovens) are in one timed loop of 1 second ,and this can cause the integration to be restarted (or so) at eatch second?
Many thanks
JOSE
