MATLAB: How to change x axis values

scaling x axis

I am plotting an image using Simulink with sampling time 0.01s.

I want to change x-axis grid values instead of 200=2, 400=4….

My code is like

sim('response')
plot(y.signals.values)
hold on
plot(u.signals.values)

How and where should I define time sample for scaling x-axis

set(gca,'XTick',0:200:1200)
set(gca,'XTickLabel',0:2:12)