Which controller function block to use in Control Builder F?
I need to control water temperature from coming from a heat exchanger through an actuated valve.
Which controller function block (C_CS,C_CU,C_CR,C_SS,C_SU,C_SR,C_OS,C_OU,C_PS,C_PU) should I use inorder to get a quick response? I am using Control Builder F 9.2.
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I am not expert in process, but find details about different controllers types
C_CS Continuous Controller, Standard
C_CU Continuous Controller, Universal
C_CR Continuous Controller, Ratio
C_SS Step Controller, Standard
C_SU Step Controller, Universal
C_SS Step Controller, Ratio
C_OS Two-position controller, standard
C_OU Two-position controller, universal
C_PS Three-position controller, standard
C_PU Three-position controller, universal
You can use C_CU for close loop control,
The fastest responce on Controller Output is using on/off or Two-position controllers. but it is not smooth control. If you want smooth control use continuous controllers with less TR(integration time) and more TD(derivative time) but you will get over/under shoot if TD(derivative time) is more.
Check in CBF online help for more details about controller FB's.
I am nterested getting answer from process experts, might have used same application using freelance controller FB's.