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Blocchi

Personalizzare il comportamento del blocco impostandone i parametri

Per creare un modello Simulink^®, aggiungere blocchi a un diagramma a blocchi, quindi collegare e configurare tali blocchi. È possibile assegnare valori ai parametri numerici del blocco che controllano i calcoli del blocco durante la simulazione e regolare le proprietà del blocco che controllano l'aspetto.

Regolare i parametri e le proprietà dei blocchi per:

Sperimentare i valori dei parametri durante la progettazione del modello.
Abbinare i risultati della simulazione ai dati misurati, stimando i valori dei parametri.
Progettare un algoritmo di controllo efficiente ottimizzando i valori dei parametri.
Documentare i blocchi e personalizzare l'aspetto.

Definire le costanti di sistema creando variabili globali che possono essere condivise tra blocchi e modelli.

Funzioni

`set_param`	Set Simulink parameter value
`get_param`	Get parameter names and values
`slexpr`	Generate expression to use in value of parameter object

Classi

`Simulink.DualScaledParameter`	Specify name, value, units, and other properties of Simulink dual-scaled parameter
`Simulink.Parameter`	Store, share, and configure parameter values
`Simulink.VariantControl`	Create a variant control variable object (Da R2021a)
`Simulink.VariantVariable`	Create variant parameter object (Da R2021a)

Argomenti

Parametri del blocco

Set Block Parameter Values
Blocks have numeric parameters that determine how they calculate output values. To control the calculations that blocks perform, you can specify parameter values.
Share and Reuse Block Parameter Values by Creating Variables
To set multiple block parameters to the same value, you can use a numeric variable that you create and store in a workspace such as the base workspace, a model workspace, or a data dictionary.
Use Variant Parameters to Reuse Block Parameters with Different Values
Design one model for many variants of a system that differ in block parameter values.
Parameter Interfaces for Reusable Components
For each block parameter in a reusable component, specify the same value for all instances of the component or a different value for each instance.
Organize Related Block Parameter Definitions in Structures
Increase model readability and reduce the effort of model maintenance by aggregating block parameter values into structures.
Tune and Experiment with Block Parameter Values
As you construct a model you can experiment with block parameters, such as the coefficients of a Transfer Fcn block, to help you decide which blocks to use.
Optimize, Estimate, and Sweep Block Parameter Values
Use parameter sweeping to tune control parameters, estimate unknown model parameters, and test the robustness of a control algorithm by taking into consideration uncertainty in the real-world system.
Switch Between Sets of Parameter Values During Simulation and Code Execution
Switch between independent sets of values for the same block parameters by storing the sets in an array of structures.
Control Block Parameter Data Types
Control the data type that Simulink and the generated code use to store block parameter values in computer memory.
Specify Minimum and Maximum Values for Block Parameters
Fully specify your design and optimize the generated code by setting minimum and maximum values for numeric block parameters.
Block-Specific Parameters
To write scripts that create and modify models, determine the programmatic name of a parameter or property in a block dialog box.

Proprietà del blocco

Specify Block Properties
Control block appearance and add custom documentation to blocks. Specify block execution priority and callbacks.
Associating User Data with Blocks
Associate your own data, such as a numeric variable, with a block.

Informazioni complementari

Librerie di blocchi

Esempi in primo piano

Change Active Values and Activation Time of Variant Parameters

Change the active values and activation time of variant parameters in a Simulink® model.

Apri script

Set Priority in Execution Order of Blocks

What happens when blocks are assigned different execution order priorities. The block priority affects the order in which the blocks are executed. You can set the block priority through the Block Properties dialog. Starting in R2023b, the Priority property is available only when the Execution Order property is set to Based on priority. For versions prior to R2023b, the Priority property is available by default. the A smaller number indicates a higher priority.

Apri modello

Set Execution Order Property for Block to Execute First

Set the execution order of a Data Store Read block to execute first. The execution order specification allows the block to access the data stored in a Data Store Memory block at a previous time step of model simulation.

Apri live script