12.5 Simulink Functions
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 |
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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 cold and hot valve positions.
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