Simulink 函数

定义可从整个 Simulink 模型层次结构访问的函数

您可以使用 Simulink^® 函数来定义可在 Simulink 模型层次结构中访问的函数。Simulink 函数根据提供的输入和实现的函数行为计算一组输出。您可以使用 Simulink 函数来：

指定包含函数名称、输入和输出参量的函数原型，例如 y = f(u)。
使用 Simulink Function 模块、从 Stateflow^® 图导出的函数或 S-Function 模块在 Simulink 环境中实现函数行为。
跨模型层次结构调用和重用您的函数。

模块

函数

Simulink Function	使用 Simulink 模块定义函数
Chart	用有限状态机实现控制逻辑

函数调用方

Function Caller	调用 Simulink 函数
MATLAB Function	在 Simulink 模型中包含 MATLAB 代码
Chart	用有限状态机实现控制逻辑

局部环境信号

Inport	为子系统或外部输入创建输入端口
Outport	为子系统或外部输出创建输出端口
Function Element	Specify function to be called via exporting function port (自 R2022a 起)
Function Element Call	Specify function call to be issued via invoking function port (自 R2022a 起)

主题

了解 Simulink 函数

Simulink Functions Overview
Use Simulink functions to define functions that are accessible in the Simulink model hierarchy.
在模型中定义 Simulink 函数
使用 Simulink Function 模块、导出的 Stateflow 函数或 S-Function 模块定义一个 Simulink 函数。
Call a Simulink Function from a Model
Call a Simulink function using a Function Caller block, a Stateflow chart, a MATLAB Function or MATLAB System block, an S-Function block, or an event action of a SimEvents^® block.
Scoped, Global, and Port-Scoped Simulink Function Blocks Overview
Specify visibility and access of Simulink Function blocks.
Simulink Function Blocks in Referenced Models
Add and access functions in model components.

限定作用域的 Simulink 函数

Scoped Simulink Function Blocks in Subsystems
Limit the scope of a function to a subsystem.
Scoped Simulink Function Blocks in Models
Limit the scope of a function to a model.
Resolve Error: Block Is Unable to Call The Scoped Simulink Function
Troubleshoot block unable to call the function error in Simulink.

作用域限于端口的 Simulink 函数

Model Client and Server Components Using Function Ports
Use function ports to model client and server components in a service-oriented architecture.
Service Interfaces Overview (System Composer)
Create client and server ports, author service interfaces, and simulate service-oriented communication.

精选示例

Model Service Access from Application Software Using Scoped Simulink Functions

Model services and accessing these services from a separate component.

打开实时脚本

Monitor Ink Status on Shared Printer Using Simulink Functions

How multiple clients can send requests to a server and receive a status from the server. Using Simulink® functions, different subsystems can call functions from other subsystems and interact in Simulink and Stateflow®. In this example, you model the ink status monitoring of a shared printer using Simulink functions.

打开实时脚本

重用一个 Simulink 函数的多个实例

要重用组件，请使用一个函数的多个实例。

打开实时脚本

函数的动态优先级调度

此示例展示一种常见的建模模式，使用 Stateflow® 图动态安排函数的执行。

打开模型

Temperature Control System Communicating with Messages

Distributed control of room temperatures by processing messages from room thermostats and communicating control commands using messages to different receivers.