Simulink Mask Port Visibility

Hello!

I have a masked simulink block which has 3 models with different level of fidelity.

I would like to add a check box that when selected turns on/off the visibility of certain ports that are/are not required in the block depending of the user selection.

I see that in some blocks such as the battery one in the figure. This functionality is already added. The port Ta is activated or deactived as a function of the check box.

Does anyone know who to do this?

Thanks in advance.

Answer 1

[Nikhil Sonavane]

You may refer to this link for more details.

Answer 2

[Arthur Reis]

Perhaps using an enabled subsystem?

Answer 3

[Katherine May]

If you're running a custom S-function using a MEXed C-file, you can add the checkbox value to the S-function parameters to send it through to your C file, then selectively enable only the number of ports that you need. Also make sure that accompanying TLC files & port labels will set/grab the correct values from the correct ports.

Like this:

static void mdlInitializeSizes(SimStruct *S) {
    boolean usePort = mxGetScalar(ssGetSFcnParam(S, INDEX_USE_PORT)) == 1;
    [...]
    if(usePort){
        ssSetNumInputPorts(S, 1);
        ssSetNumOutputPorts(S, 1);
        
    } else {
        ssSetNumInputPorts(S, 0);
        ssSetNumOutputPorts(S, 0);
    }
}

I'm still investigating a solution for when the controlling block is a subsystem containing S-function blocks.

Answer 4

[Alexander]

I think this is what you are after:

https://au.mathworks.com/help/simulink/ug/create-dynamic-masked-subsystems.html