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Protected model information for use in callbacks


A Simulink.ProtectedModel.CallbackInfo object contains information about a protected model that you can use in the code executed for a callback.




Simulink.ProtectedModel.getCallbackInfo(ModelName,Event,Functionality) creates a Simulink.ProtectedModel.CallbackInfo object for the callback that applies to the protected model for the event and functionality that you specify.


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Code interface that the protected model generates, specified as 'Top model' or 'Model reference'.

Event that triggered the callback, specified as one of these values:

  • 'PreAccess': Callback code executed before simulation, build, or read-only viewing.

  • 'Build': Callback code executed before build. This option is valid only for the 'CODEGEN' functionality.

Protected model functionality that the event applies to, specified as one of these values:

  • 'CODEGEN': Code generation.

  • 'SIM': Simulation.

  • 'VIEW': Read-only web view.

  • 'AUTO': If the event is 'PreAccess', the callback executes for each functionality. If the event is 'Build', the callback executes for only 'CODEGEN' functionality.

Protected model name, specified as a character vector or string scalar.

Example: 'myProtectedModel.slxp'

Names of all models and submodels in the protected model container, specified as a cell array of character vectors.

Current target identifier for the protected model, specified as a character vector. This property is available for only code generation callbacks.

Example: 'ert'

Object Functions

getBuildInfoForModelBuild information object for specified model


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  1. On the MATLAB® path, create a callback script pm_callback.m that contains this code:

    s1 = 'Simulating protected model: ';
    cbinfobj = Simulink.ProtectedModel.getCallbackInfo(...
    disp([s1 cbinfobj.ModelName])

    The script uses the Simulink.ProtectedModel.CallbackInfo object to display the name of the protected model.

  2. Create a callback object that uses the script for the callback code. Protect the model sldemo_mdlref_counter and specify the callback object.

    pmCallback = Simulink.ProtectedModel.Callback('PreAccess'...
    ,'SIM', 'pm_callback.m')
  3. Simulate the protected model. When each instance of the protected model reference in the top model is simulated, the output from the callback is listed.

    Simulating protected model: sldemo_mdlref_counter
    Simulating protected model: sldemo_mdlref_counter
    Simulating protected model: sldemo_mdlref_counter

Version History

Introduced in R2016a