MATLAB Answers

2018b to 2018a

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Ayoub Rahmouni
Ayoub Rahmouni on 30 May 2020
Answered: Joel Van Sickel on 5 Aug 2020
Hello friends, I need help, can someone convert this .slx file version 2018b to 2018a or a lower version, and thank you


Ameer Hamza
Ameer Hamza on 30 May 2020
The conversion is not supported. The Simulink complain that the Simscape blocks couldn't be converted to R2018a. I guess, in R2018b, some new blocks were introduced in Simscape electrical, which couldn't be converted to an equivalent block in R2018a.
Ayoub Rahmouni
Ayoub Rahmouni on 1 Jun 2020
good evening, first of all thank you very much for your repentance, but I have a small remark, I work uvaec with a binomial a simulation project on matlab which I work with matlab 2018a and him it works with matlab 2015a and for send it but file I transform it into matlab 2015a, and it works well.
Ameer Hamza
Ameer Hamza on 2 Jun 2020
For some Simulink models, it is possible to save them for a previous version. But, if the new model uses some features not present in the old versions, then it will not be able to do the conversion.

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Answers (1)

Joel Van Sickel
Joel Van Sickel on 5 Aug 2020
Hello Ayoub,
there was a change in library structure as multiple simscape products were merged into Simscape Electrical which prevents exporting back to old versions for components that utilize simscape electrical. There is a caveat though, that many components will still work if they were originally in the simscape power systems toolbox. Either way, a lot of manual work is required to do this.
However, you can also open newer versions of simulink in older version without having to post them. This will make it easier to manually tweak it till it works. Here is how to do that: (pasted from a different post)
Simulink has a preference, in the Model File section, called "Do not load models created with a newer version of Simulink". You can temporarily turn this off rather than edit the model files to change version numbers.
Remember to turn the preference "Do not load models created with a newer version of Simulink" back on afterwards.


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