Specifications

3 Designing Controllers Using the Design Tool GUI
3-54
The plant outputs plot shows that the first output does not respond for the first minute,
which corresponds to the delay from the first input. The first output reaches the setpoint
in two minutes and settles quickly. Similarly, the second output does respond for three
minutes, which corresponds to the delay from the second input, and settles rapidly
afterwards. Changing the setpoint for the Bottoms Purity output disturbs the Distillate
Purity output, but the magnitude of this interaction is less than 10%.