The following table gives the measured open-loop response of a system to a unit-step input. Use the process reaction method to find the controller gains for P. PL and PID control.
Time (min) Response
0...............................................0
0.5.............................................4
1.0...........................................20
1.5...........................................32
2.0...........................................56
2.5...........................................84
3.0.........................................1 16
3.5.........................................140
4.0.........................................160
4.5.........................................172
5.0.........................................184
5.5.........................................190
6.0.........................................194
7.0.........................................196