How can I apply step signal input to a system after 20secs of delay?

Hello guys,

I defines a step input signal with this command:

>> opt = stepDataOptions('InputOffset',25,'StepAmplitude',5);

now how can I apply this signal to system after 20secs of dealy to plot it?

to clarify the input signal value is 25 until t=20 sec and after that it increases to 30.

Answer 1

[Paul]

Set the InputDelay property of the system to 20. If h is the system

h.InputDelay = 20;
step(h,opt)