Model References
You can include one model in another by using a Model block. Each instance of a Model block is a model reference. For simulation and code generation, blocks within a referenced model execute together as a unit. The model that contains a referenced model is a parent model. A collection of parent and referenced models constitutes a model hierarchy.
Like subsystems, model references allow you to organize large models hierarchically. Like libraries, model references allow you to define a set of blocks once and use it repeatedly. Model references provide several advantages that are unavailable with subsystems and libraries. Several of these advantages result from referenced models compiling independent of the context of the Model block, including:
Modular development
Model protection
Inclusion by reference
Incremental loading
Accelerated simulation
Incremental code generation
Independent configuration sets
Blocks
| Model | Reference another model to create model hierarchy |
| Variant Subsystem, Variant Model | Template subsystem containing Subsystem blocks or Model blocks as Variant choices |
Functions
Simulink Configuration Parameters
Tools
| Model Reference Conversion Advisor | Convert subsystems to referenced models |
| Referenced Files Pane | View, save, and close referenced subsystems and models |
Topics
Determine When to Reference Models
Create a model hierarchy by referencing one model in another model. A referenced model contains blocks that execute together as a unit.
Component-Based Modeling Guidelines
Consider componentization for large models and multiuser development teams.
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
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.
Model Reference Interface and Boundary
Ports in the referenced model correspond with ports at the model reference. Signals that cross the model boundary must meet certain requirements.
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.
Modify Referenced Models for Conditional Execution
Execute referenced models conditionally, similar to conditionally executed subsystems.
A referenced model can inherit sample times from the model that references it.
Parameterize Instances of a Reusable 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.
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.
