Change specific simulation time in Simulink

Hello,

I have been working on a simulink model and the simulation works perfectly.

I wanna add a new block to the simulation, which only runs for a specific time. So lets say I run the simulation for 10000s, I only want the new block to run from 2000-4000.

Is this possible? And is there a way I can make a specific block start after some seconds?

Your Sincerly

Answer 1

[Azzi Abdelmalek]

You can use the block If-Then-Else Blocks

[Kelvin]

But I tried to put a variable called simulation_stop_time and im changing that variable in a matlab script. But how do I access this simulation time while it runs? I tried to make a matlab function like this:

 if simulation_stop_time > 1000
    signal_out = 1
 else
    signal_out = 0
 end

But since I gave this variable a value, it doesnt change. But how do I access the variable that goes from 0 - simulation_stop_time?

Aint it possible to use this value somehow?

[Azzi Abdelmalek]

Where did you put this function? There is no start time and stop time for each block

[Kalle]

I put it in simulink. I can't really see how I can explain it better. It should be a basic question.

Let's say I put a transfer function in a model and run it for '' 10000'' and put a scope to see the output. Now I want to add a disturbance that should only run for 1000-2000. Is this possible? I want to access the increasing simulation time.

[Azzi Abdelmalek]

When there is no disturbance signal, we can consider it as equal to zero. Instead of telling: I will run a disturbance from 1000 to 2000, just set your disturbance signal to zero wherever you want

[Omar Al-Khatib]

Haha LOL gud answer :)