SIMULINK has a number of built-in functions to perform ratio, selective, and split-range control. Examples are shown here.
|Product||Can be used for ratio control|
|MinMax||Can be used for high or low selection|
|Switch||Can be used for switching between alternatives|
|Saturation||Can be used for split-range control, and controller saturation|
An example SIMULINK block diagram to implement a split-range jacket temperature controller from Example 12.1 is shown in Figure 12-7. Since this has been formulated in deviation variable form, the output of the jacket temperature controller ranges from –50 to 50%. Saturation elements are used for the ...