Personnaliser des System objects pour Simulink

Personnaliser un System object™ pour l'utiliser dans un bloc MATLAB System

Le bloc MATLAB System permet d'utiliser un System object défini dans MATLAB^® en tant que bloc dans Simulink^®. Pour contrôler l'apparence ou la sortie du bloc ou pour permettre l'utilisation du System object dans un sous-système For Each, suivez les méthodes d'implémentation proposées afin de personnaliser votre System object. Pour plus d'informations sur la définition d'un System object, consultez la rubrique Define Basic System Objects ou System objects.

Méthodes

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Apparence du bloc

`getIconImpl`	Name to display as block icon
`getHeaderImpl`	Header for System object display
`getInputNamesImpl`	Names of MATLAB System block input ports
`getOutputNamesImpl`	Names of MATLAB System block output ports
`getPropertyGroupsImpl`	Property groups for System object display
`getSimulateUsingImpl`	Specify value for Simulate using parameter
`showSimulateUsingImpl`	Visibility of Simulate using parameter
`showFiSettingsImpl`	Fixed point data type tab visibility for System objects

Entrée et sortie

`allowModelReferenceDiscreteSampleTimeInheritanceImpl`	Model reference sample time inheritance status for discrete sample times
`getGlobalNamesImpl`	Global variable names for MATLAB System block
`getDiscreteStateImpl`	Discrete state property values
`getDiscreteStateSpecificationImpl`	Discrete state size, data type, and complexity
`getOutputDataTypeImpl`	Data types of output ports
`getOutputSizeImpl`	Sizes of output ports
`getSimulinkFunctionNamesImpl`	Register Simulink function names used in your System object
`getInterfaceImpl`	Set System object as message or data
`isOutputComplexImpl`	Complexity of output ports
`isOutputFixedSizeImpl`	Fixed- or variable-size output ports
`processTunedPropertiesImpl`	Action when tunable properties change
`propagatedInputComplexity`	Complexity of input during Simulink propagation
`propagatedInputDataType`	Data type of input during Simulink propagation
`propagatedInputFixedSize`	Fixed-size status of input during Simulink propagation
`propagatedInputSize`	Size of input during Simulink propagation

Alimentation indirecte

`isInputDirectFeedthroughImpl`	Direct feedthrough status of input
`outputImpl`	Output calculation from input or internal state of System object
`updateImpl`	Update object states based on inputs

Pas d'échantillonnage

`createSampleTime`	Create sample time specification object
`getSampleTimeImpl`	Specify sample time type, offset time, and sample time
`getSampleTime`	Query sample time
`getCurrentTime`	Current simulation time in MATLAB System block
`setNumTicksUntilNextHit`	Set the number of ticks in Simulink sample time

Sous-systèmes For Each

supportsMultipleInstanceImpl Support System object in Simulink For Each subsystem

Classes

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Apparence du bloc

`matlab.system.display.Icon`	Specify custom image as icon for MATLAB System block
`matlab.system.display.Action`	Create custom button in Block Parameters dialog box for MATLAB System block
`matlab.system.display.Header`	Specify header in Block Parameters dialog box for MATLAB System block
`matlab.system.display.Section`	Create property group section in Block Parameters dialog box for MATLAB System block
`matlab.system.display.SectionGroup`	Create nested groupings of properties in Block Parameters dialog box for MATLAB System block

Rubriques

Introduction

Define System Object for Use in Simulink
Develop MATLAB System block and interactively preview block dialog box.
System Design in Simulink Using System Objects
Design systems in Simulink using System objects.
Simulink Engine Interaction with System Object Methods
Follow a process view of the order in which the MATLAB System block invokes System object methods within the context of the Simulink engine.
Considerations for Using System Objects in Simulink
Consider these guidelines when working with variable-size signals, tunable parameters, and For Each subsystems.

Apparence du bloc

Customize MATLAB System Icon and Dialog Box Using Mask Editor
Customize MATLAB System block appearance using Mask Editor graphical user interface.

Entrée et sortie

Set Model Reference Discrete Sample Time Inheritance
Disallow model reference discrete sample time inheritance for a System object.
Use Global Variables in System Objects
Define global variables for use in System objects.
Specify Output
If Simulink cannot infer the System object output characteristics, add methods to specify the size, data type, complexity, or discrete state output.
Add and Implement Propagation Methods
To define output specifications, use propagation methods.

Cas d'utilisation particuliers

Use System Objects in Feedback Loops
Process nondirect feedthrough data through the System object.
Use Update and Output for Nondirect Feedthrough
Implement nondirect feedthrough for a System object using the updateImpl, outputImpl, and isInputDirectFeedthroughImpl methods.
Enable For Each Subsystem Support
Enable For Each subsystem support by using a System object in a Simulink For Each subsystem.
Specify Sample Time for MATLAB System Block System Objects
This example shows how to control the sample time of the MATLAB System block using System object™ methods.

Informations connexes

System objects

Sélection d՚exemples

Create Moving Average Filter Block with System Object

Modify a System object to use it in Simulink.

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Process Message Payload Using MATLAB System Block

Send, receive, and process messages using the MATLAB System block. Use System objects to author blocks to model custom behavior to send and receive messages and manipulate the message payload.

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