allowModelReferenceDiscreteSampleTimeInheritanceImpl

Model reference sample time inheritance status for discrete sample times

Syntax

flag = allowModelReferenceDiscreteSampleTimeInheritanceImpl(obj)


Description

flag = allowModelReferenceDiscreteSampleTimeInheritanceImpl(obj) specifies whether a System object™ in a referenced model is allowed to inherit the sample time of the parent model. Use this method only for System objects that use discrete sample time and are intended for inclusion in Simulink^® via the MATLAB System block.

Run-Time Details

During model compilation, Simulink sets the referenced model sample time inheritance before the System object setupImpl method is called.

Method Authoring Tips

You must set Access = protected for this method.

Input Arguments

obj — System object

System object

System object handle used to access properties, states, and methods specific to the object. If your allowModelReferenceDiscreteSampleTimeInheritanceImpl method does not use the object, you can replace this input with ~.

Output Arguments

flag — discrete sample time inheritance flag

true | false

Flag indicating whether model reference discrete sample time inheritance is allowed for the MATLAB System block containing the System object, returned as a logical value.

The default value for this argument depends on the number of inputs to the System object. If you want to use the default value, you do not need to include this method in your System object class definition file.

Number of System object Inputs	Default Value and Override Effects
No inputs	Default: false — Model reference discrete sample time inheritance is not allowed. If your System object uses discrete sample time in its algorithm, override the default by returning true from allowModelReferenceDiscreteSampleTimeInheritanceImpl.
One or more inputs	Default: true — If no other Simulink constraint prevents it, model reference sample time inheritance is allowed.

Examples

Set Sample Time Inheritance for System Object

For a System object that has one or more inputs, to disallow model reference discrete sample time inheritance for that object, set the sample time inheritance to false. Include this code in your class definition file for the object.

methods (Access = protected)
   function flag = allowModelReferenceDiscreteSampleTimeInheritanceImpl(~)
      flag = false;
   end
end

Version History

Introduced in R2016a