how to change the integrator initial conditions?

In simulink I am using the integrator block. I know that the initial condition defaults to t=0. How would I change that so my initial condition starts at t=9?

Answer 1

[stozaki]

Hello,

ret = find_system(bdroot(gcs),'BlockType','Integrator')

for N = 1:length(ret)
    set_param(ret{N},'InitialCondition','9')
end

Please try its script.

[Trevor Hutchinson]

This isn't quite the issue I am having. I am trying to solve a 2nd order diff eq using two integrator blocks. The equation is piecewise meaning my initial conditions change with respect to time. For example my first equation has initial conditions at t=0, but then my second equation has initial conditions at t=9. This suggestion tells my code that at t=0 the solution is 9.

[stozaki]

I attached initialize Function model.

Please see initialize Function