Motor Control Blockset examples: Using variant source block

Hello,

a Variant source block is used in 'mcb_pmsm_operating_mode_f28379d.slx' model example to switch betwen SIMulation mode and CODE-generation mode. Inside Varian source block, there are two variables: mcb_isCodeGenVar() and mcb_isSimVar().

Could you please tell me where and how are those variables set? When the model decides what mode is to be chosen? Do I have to play with a Variant manager?

Thanks

Petr

Answer 1

[Mark McBroom]

Those are functions, not variables. They are p-coded M-Files that are shipped with the example. Type the following to see where the files exist:

who mcb_isCodeGenVar

Thanks.

Mark.

[Petr Kadanik]

Hello Mark,

thanks for reply.

Have tried 'who mcb_isCodeGenVar' in the Matlab command window, but it doesn't return any value.

I've found out that 'variant source' block inputs automatically swap if I simulate or if I want to deploy the code.

However, I still don't know where the functions mcb_isCodeGenVar() & mcb_isSimVar() are located? Can I modify/edit them? Is it a specific part of 'motor control toolbox'?

Cheers

Petr

[Mark McBroom]

My mistake, use "which" not "who". The file mcb_isCodeGenVar() should be in the same folder as the example simulink model. You can not modify these 2 functions ( .p code is a unreadable form of an .m file).

Thanks.

Mark.

>> which mcb_pmsm_operating_mode_f28379d

/Applications/MATLAB_R2020a.app/toolbox/mcb/mcbexamples/mcb_pmsm_operating_mode_f28379d.slx % block diagram loaded

>> which mcb_isCodeGenVar

/Applications/MATLAB_R2020a.app/toolbox/mcb/mcbexamples/mcb_isCodeGenVar.p

>>

[Petr Kadanik]

Perfect. Thanks.

So, mcb_isCodeGenVar() function (and associated p-file) is a specific item of MotorControl Toolbox. Please, confirm.

Is there any document with the list and of those 'integrated' functions for the MC toolbox (including a function description and applicability)?

Petr

[Mark McBroom]

Yes, those two functions are part of the Motor Control Toolbox. Neither of these two functions are currently documented in MATLAB Help. I'll add a change request to have them added to the help documentation.

[Petr Kadanik]

I would be perfect. Thanks a lot.