How can I plot a step response to an

I want to plot the response of a dc motor to a 15V input, jow can I plot it? Step(sys) shows an input of 1V how can I edit it to show a plot for 15?

Answer 1

[Star Strider]

You can increase the amplitude of the step by using stepDataOptions:

opt = stepDataOptions;
opt.StepAmplitude = 15;
y = step(sys, t, opt);

Answer 2

[Salahuddin Bangash]

 syms s
num=[15]
g=tf(num,1)
step(g)
grid on %is that wat u want?
%or
step(15,1)