drbitboy
Lifetime Supporting Member
Where do signals fq-100, fq-500 come from?
See Post #69:
so here they are
fq-100 is the flow out of p1
fq-500 is the flow out of p2
lt-100 is t1 level
lt-300 is t2 level
t-1000 is the decant tank ...
Anyway, success.
PV Max values are linear Kp (Assuming PV Min values are 0), so magnitudes can be dropped to bring Kp into whatever range (0-100) is necessary.
To get there, e.g. to 13.5 to 4095, when doing it in one step causes a process upset, it may be necessary to do it in steps e.g. 4095 => 3000 and increase Kp, 3000 => 2250 and increase Kp, etc. Or just put the controller in Manual, make the change, then put it back into Auto.