A very basic modeling and simulation of 2nd order system like spring mass damper in Xcos. PID control algorithm is used to get the desired response of the system.

1. Test 1

2. Spring-mass-damper system

3. Case 1: Undamped system

4. Case 2: Under damped system

5. Case 3: Critically damped system

6. Case 4: Over damped system

7. PID controller

9. At P= 100, I=50, D=50
At P= 200, I=100, D=50

10. At P= 350, I=300, D=50
At P= 350, I=300, D=50