How can I save partial results of a simulation that exited with error when running it programmatically?

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Claudius Rosendahl
Claudius Rosendahl 2022-12-5
回答： Joel Van Sickel 2022-12-12
I have a Simscape simulation that writes results to the variable out. I'm trying different sets of parameters for my PID controller. Sometimes the simulation fails (due to physical constrains that are violated).
I realised that partial results are saved only if the simulation is run "manually" (by pressing the play button). By partial results I mean that timeseries for my output variables are written up to the point when the simulation fails.
As an example, lets assume my simulation is supposed to run for 1000s, but fails at 603s.
If run via play button, the variable out.power contains a timeseries of the data up to second 603. If run programmatically, out does not exist.
out=sim(mymodel);
I'm having a hard time coming up with a minimal example of a simulation that fails at a certain point in time, so please excuse the lack of such an example.
I was hoping there was some option for that but I've come up empty handed in my search.

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Joel Van Sickel
Joel Van Sickel 2022-12-12
There is a way to do this using a setting StopOnError and setting it to off. I created a test file that crashes (I create a divide by zero uisng the ps divide in the simscape domain). To use this feature, you have to use the simulation input class. I created a very basic example below:
file = 'temptestsim'
simIn = Simulink.SimulationInput(file);
out2 = sim(simIn,"StopOnError","off")

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