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How to restart the simulation from the last of the previous stopped time

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I would like to connect and proceed after the simulation is completely stopped. Is there a way to save the last state in memory when it is stopped and retrieve and connect that information to proceed?
In my situation, I run a model over 10 hours and then adjust some parameters and re-run the simulation from the time that I stopped. If I run the simulation from the start again, it would be a very wasteful time.

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 15 Feb 2023
Edited: MathWorks Support Team on 1 Feb 2023
You can use Simulink.op.ModelOperatingPoint to save model operating point in simulation as below.
fuelsys
set_param('fuelsys','SaveFinalState','on','FinalStateName',...
'myOperPoint','SaveOperatingPoint','on');
simOut = sim('fuelsys','StopTime','2')
myOperPoint = simOut.myOperPoint
Then, you can start the simulation at the stopped time of 2 seconds by specifying the initial state using the above saved Simluik.op.ModelOperatingPoint object as below.
set_param('fuelsys','LoadInitialState','on','InitialState',...
'myOperPoint');
myOperPoint = simOut.myOperPoint
Now you can see the simulation operate from that time as shown in the captured image below.
Note: The attached recording file(UI_Iteractive_way.mp4) is to show how to save and restore operating point through UI interactive.
 
You can find more information about using model operating point at the following links.
 
- Use Model Operating Point for Faster Simulation Workflow
 
- Simulink.op.ModelOperatingPoint
 
- Specify Initial State for Simulation

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