Does anyone know the PID parameters in the Yokogawa DCS system?
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Which specific values in the algorithms do the P/I/D parameters in the tuning screen of the Yokogawa DCS correspond to? The basic algorithm for Yokogawa PID is: where P corresponds to PB ； Do Ti and Td correspond to those in the I, D formula? If not, which specific value does it refer to? From the formula, doesn’t the value of P also affect the differential and integral terms?
Theoretically, 100/PB is the proportionality constant, Ti is the integration time, and TD is the differentiation time; these three parameters influence each other
What was said upstairs is correct; the three parameters influence each other, which is why there is a need for tuning of the PID parameters； To avoid affecting each other, it’s set directly.