update a parameter in function block each timestep in simulink

I have a parameter or a variable (T) which should increase or decrease with a (delta_T) and it has an initial value of (T_0).

So, I defined (delta_T = ....) and (T_0 = 20) and it should be a loop (T = T + delta_T) which updates the value of T each time step.

I will put this function in a block in Simulink.

I hope my question is clear and many thanks in advance.

[Ameen Bassam]

I have tried the following but failed to update T

function [delta_T,T] = fcn(u)

m=100;

T = 20;

delta_T = u/m;

T_max = 100;

while T <= T_max

T = T + delta_T;

end

Answer 1

[Fangjun Jiang]

Use the "Ramp" block to generate such a signal.

[Ameen Bassam]

Thank you for your comment