Unavailable Simscape blocks in a 2019b model exported for 2018b

Hello,

I have a Simulink/Simscape model in 2019b and I want to open it in 2018b. I exported the 2019b model into 2018b. When I open the exported model with 2018b, the Simscape blocks appears as unavailable. Could you please help me to see the Simscape blocks with 2018b ?

[Samuel Quiniou]

Here is the error logged in the Diagnostic View of 2019b when exporting the model:

Export to R2018b

09:09 AM Elapsed: 4 sec

Error running method slexportprevious.preprocess.SimscapeElectricalBlocks: (physmod:ee:library:ExportToPreviousVersion) Export to previous version does not support Simscape-based blocks from Simscape Electrical.

'<path to the model>' created for use in Simulink R2018b, but the conversion was only partially successful. Examine this model for changes to original behavior.

[Samuel Quiniou]

And the error in the Diagnostic View of 2018b when trying to open the model:

Model Load

27

Clear

09:13 AM Elapsed: 26 sec

Model 'TestBench' was created with a newer version (R2019b) of Simulink To create a model that is compatible with this version of Simulink, load the model in Simulink R2019b and select File > Export Model to > Previous Version.

Component:Simulink | Category:Model warning

Cannot find library called 'ee_lib'. To use the library, install 'Simscape Electrical'.

Answer 1

[Jonas]

Are you sure you have installed all toolboxes on your MATLAB 2018b version? You need to install your necessary licenses for each and every MATLAB version, they are not shared.

[Samuel Quiniou]

Hello,

I can see that the toolboxes Simscape (version 4.5) and Simscape Electrical (version 7.0) are installed in the Add-On Manager of 2018b.

[Jonas]

I am suspecting the export to 2018b failed because there may be a block in you Simscape Electrical which is not supported in 2018b. Could be some new block? I can suggest to check the releasenotes for versions 2019a and 2019b for changes to the Simscape Electrical library to see if you are using any of those functionalities.

Answer 2

[Pradeep Gurrala]

The simscape electrical library in 2019 is renamed to ee_lib from elec_lib in 2018

Answer 3

[Vitor Henrique Madureira Biajo]

I have a similar issue over here. I downgraded a R2020a Simulink model to R2018b, but it cannot find the Simscape Electrical Blocks, which is indeed installed. How can I solve it?