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Implémenter des blocs avec des System objects

Utiliser un System object™ dans Simulink^® à l'aide de blocs MATLAB System

Le bloc MATLAB System utilise un System object pour implémenter des algorithmes MATLAB^® dans Simulink. Avant d'utiliser un bloc MATLAB System, vous devez disposer d'un System object à associer à ce bloc. Un System object est un type particulier de classe MATLAB spécifiquement conçu pour l'implémentation et la simulation de systèmes dynamiques. Pour plus d'informations sur l'implémentation et la création de System objects, consultez la rubrique Créer des System objects.

Blocs

MATLAB System

Include System object in model

Rubriques

Create Custom Blocks Using MATLAB System Block and System objects
Implement your own algorithms using System objects.
Implement a System object in Simulink Using MATLAB System Block
Specify Sample Time for MATLAB System Block
Call Simulink Functions from MATLAB System Block
Learn to call a Simulink function from a MATLAB System block.
Change Block Icon and Port Labels
Add and Implement Propagation Methods
To define output specifications, use propagation methods.
Use System Objects in Feedback Loops
Process nondirect feedthrough data through the System object.
Share Data Between MATLAB System Block and Other Blocks
Share data between MATLAB System and other blocks using the global keyword and the Data Store Memory block or Simulink.Signal object.
Call Python Function Using MATLAB Function and MATLAB System Block
This example shows how to call a Python® function in Simulink® that sorts random numbers using a Python® sorting function and two different blocks: the MATLAB Function block and MATLAB System block.
Mapping System Object Code to MATLAB System Block Dialog Box
The System object source code controls the appearance of the block dialog box.
Interpreted Execution vs. Code Generation
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.
Use Nonvirtual Buses with MATLAB System Block
Share Data Between MATLAB System Block and Other Blocks
Share data between MATLAB System and other blocks using the global keyword and the Data Store Memory block or Simulink.Signal object.
Considerations for Using System Objects in Simulink
Consider these guidelines when working with variable-size signals, tunable parameters, and For Each subsystems.

Résolution des problèmes

Troubleshoot System Objects in Simulink

Use these guidelines to troubleshoot System objects in Simulink.

Informations connexes

System objects

Exemples présentés

Customize MATLAB System Block Dialog

Customize the MATLAB System block dialog. The model contains a MATLAB System block that implements the System object™ CustomDialog. To create MATLAB System block dialog check boxes, lists, groups, tabs, and buttons, use the block dialog to modify System object properties.

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Customize MATLAB System Block Appearance

Customize the appearance of the MATLAB System block. The model contains three MATLAB System blocks. The first block does not have any customization for block appearance. By default, the block shows the name of the System object™. The argument names in the System object stepImpl method provide the port labels. The second block shows custom text and custom port labels on the block icon. The third block shows a custom block icon image.

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Specify Output Characteristics of MATLAB System Block

Specify output size, data type and complexity of a MATLAB System block.

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Integrate Python GPS Text Message Parsing Algorithms in Simulink

Parse text messages in NMEA GPS format using Simulink® string blocks and Python®. NMEA sentences are used for communication between marine devices, and the model in the example decodes RMB and RMC sentences in NMEA. RMB is the sentence for the recommended navigation data for GPS. RMC is the sentence for the recommended minimum data for GPS sentences.

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Convert MATLAB Algorithms of Dynamic Systems into a Simulink Model

Convert MATLAB® code that models a dynamic system using System objects into a Simulink® model. This example maps the dynamic system components defined in MATLAB onto a Simulink block diagram using blocks with similar functionality. Transforming MATLAB code to a Simulink model enhances your modeling experience by allowing you to create a block diagram of the system, simulate the model, visualize the results via graphs and animation, log data, verify and validate, and generate code.

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