Table 2 : The list of functionalities used in old-fashion and PITOPS technology Table 2 : The list of functionalities used in old-fashion and PITOPS technology Table 2 : The list of functionalities used in old-fashion and PITOPS technology
Functionality Old-Fashion PITOPS
Applicable to ramp/self-regulating/runaway process NO YES
Model identification based on OP changes YES YES
Model identification based on SP changes NO YES
Model identification using non steady-state data NO YES
Multivariable model identification NO YES
Model identification based ultra-short duration data NO YES
Control valve stiction identification NO YES
Unmeasured disturbance identification NO YES
Data preconditioning required YES NO
Cascade PID tuning NO YES
Calculation of feedforward parameters NO YES
Inferential controller design NO YES
Smith predictor design NO YES
PID tuning based on the SP change YES YES
PID tuning based on different disturbances NO YES
PID tuning based on the valve stiction NO YES
PID tuning based on the OP rate of change NO YES
Robustness analysis of PID parameters NO YES