Simulink variant subsystems: How to read subsystem parameters by commandline

Dear community members,

as configurable subsystems are not longer supported I decided to switch to variant subsystems. My aim is to have a converter which automatically changes cs into vs. For this reason I need to do all necessary steps by commandline.

I tried to read the subsystem parameters of a variant subsystem I created. All I got was 'ActiveVariant' and similar things but I didn't manage to read the "Variant Choices" table which contains the connection between Name, Variant Object and Condition. By searching the Simulink documentation I found the parameter 'Variants' which seems to contain that information. My problem is that for the variant subsystem I have in hand this property doesn't exist. For

get_param('test_variant', 'Variants');

I get the error message

??? SubSystem block does not have a parameter named 'Variants'.

I am using Matlab 2010b SP1. Is there a possibility to read the "Variant Choices" information?

Thanks in advance, Bettina

Answer 1

[Carsten]

I found it. Every member of the variant subsystem has a property which specifies the variant object to this member block. It is readable

get_param('Test2/Variant Subsystem/Subsystem', 'VariantObject');

and writeable

set_param('Test2/Variant Subsystem/Subsystem', 'VariantObject', 'VO_Subsystem');

Answer 2

[Kaustubha Govind]

I believe the way to do this is to use FIND_SYSTEM on the Variant Subsystem with a 'SearchDepth' of '1' option to get all the variant options under it. You can then get the variant object of each of those subsystem choices by getting the 'VariantObject' property.

[Carsten]

Thanks for your help. Unfortunately I still marked my own answer as accepted. The next time it will be yours, I promise ;-)