Model References - MATLAB & Simulink (original) (raw)

Reuse models as blocks in other models

A model reference is a reference to another model using aModel block. These references create model hierarchy. Each referenced model has a defined interface that specifies the properties of its inputs and outputs. The defined interface makes the behavior of the referenced model independent of its context in the model hierarchy. Model references are ideal for code reuse, unit testing, parallel builds, and large components. They can also reduce file contention and merge issues.

To determine whether referenced models meet your modeling requirements, see Component-Based Modeling Guidelines.

To learn about code generation for model reference hierarchies, see Referenced Models (Simulink Coder).

To create a protected model, see Model Protection (Simulink Coder).

To perform SIL/PIL testing for a model reference hierarchy, see SIL and PIL Simulations (Embedded Coder).

Blocks

Functions

Model Settings

Tools

Topics

Determine When to Reference Models

• Component-Based Modeling Guidelines
  Consider componentization for large models and multiuser development teams.
• Model Reference Behavior and Capabilities
  Decide whether to reference one model in another model and how to implement this model reference.
• Model Reference Requirements and Limitations
  Model references have requirements and limitations relating to features such as reusability, simulation modes, masking, and debugging.

Create Model References

• Reference Existing Models
  Include a model in another model.
• Reference Protected Models from Third Parties
  Use a protected model that you received from a third party.
• Convert Subsystems to Referenced Models
  Prepare a subsystem for conversion, convert the subsystem to a model, and compare simulation results before and after conversion.
• Define Model Reference Interfaces
  Ports in the referenced model correspond with ports at the model reference. Signals that cross the model boundary must meet certain requirements.
• Inspect Model Hierarchies
  Examine the contents, structure, model versions, and logged signals in a model hierarchy.

Configure Model References

• Set Configuration Parameters for Model Hierarchies
  Configuration parameter values can be different in top models and referenced models. Some configuration parameter values have special requirements or behavior with model referencing.
• Conditionally Execute Referenced Models
  Execute referenced models conditionally, similar to conditionally executed subsystems.
• Referenced Model Sample Times
  A referenced model can inherit sample times from the model that references it.
• Configure Instance-Specific Values for Block Parameters in a Referenced Model
  When you model a reusable component as a referenced model, to configure each instance of the component to use different values for block parameters, create model arguments.
• Parameterize a Referenced Model Programmatically
  This example shows how to programmatically configure multiple instances of a referenced model to use different values for the same block parameter.
• Group Multiple Model Arguments into a Single Structure
  This example shows how to programmatically configure multiple instances of a referenced model to use different values for the same block parameter by using structures.
• Configure Instance-Specific Data for Lookup Tables Programmatically
  When you use Simulink.LookupTable objects to store and configure lookup table data for ASAP2 or AUTOSAR code generation (for example, STD_AXIS or CURVE), you can configure the objects as model arguments.

Simulate Model Hierarchies

• Choose Simulation Modes for Model Hierarchies
  Select the simulation mode for models in a model hierarchy.
• Manage Simulation Targets for Referenced Models
  A simulation target, or SIM target, is a MEX file that implements a referenced model that executes in accelerator mode.
• Share Simulink Cache Files for Faster Simulation
  Use Simulink cache files to share build artifacts that let you avoid the cost of a first-time build.
• Override Model Reference Simulation Modes
  When a top model simulates in normal mode, you can override the simulation mode used for model references without dirtying their parent models.
• Reduce Update Time for Referenced Models by Using Parallel Builds
  Reduce diagram update time for large model reference hierarchies by using parallel builds.
• Simulate Conditionally Executed Referenced Models
  Run a standalone simulation of a conditionally executed referenced model.
• Simulate Multiple Referenced Model Instances in Normal Mode
  Simulate a model that contains multiple instances of a referenced model.

Featured Examples