Simulink From Workspace Block

Hello I need a help,

I would like to define a Simulink input which is Sample time dependent.

For an instance; I defined a time variable-function in matlab editor and want to get values at each time step at Simulink input gate.. So i am a little bit confused how to determine this block in simulink. I think i need to used from workspace block but how to express variables ?

Can someone answer in a detailed way ?

Answer 1

[Azzi Abdelmalek]

You can use from file block or from workspace block

Example with from file block

ts=1 % your sample time
t=0:ts:100*ts  % your time vector
y=sin(t)   % your signal
ty=[t;y];
save FileName ty   % FileName is the name of your mat-file where your signal will be saved

In Simulink set the file name to: FileName

If you want to use a from workspace block, create a variable

   ts=1 % your sample time
t=0:ts:100*ts  % your time vector
y=sin(t)   % your signal
ty=[t;y];
ty=ty'

Then set the variable name in your block to ty and a sample time to ts.

You can also define your variable as a timeseries with from workspace block

N = 100; % number of samples
Ts = 1; % sample time
t = ((0:N)* Ts)'; % time vector 
y = sin(t);  % your signal
your_signal = timeseries(y,t)

Then set a variable name in your block to your_signal

[Azzi Abdelmalek]

Nuh commented

Thanx it was really helpful ;))