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Load System Composer model

Since R2019a



model = systemcomposer.loadModel(modelName) loads the architecture model with name modelName and returns the systemcomposer.arch.Model object. The loaded model is not displayed. The architecture model must exist on the MATLAB® path.


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Create, save, and load a model. Display the model's properties.

model = systemcomposer.createModel("new_arch");
loadedModel = systemcomposer.loadModel("new_arch")
loadedModel = 

  model with properties:

                   Name: 'new_arch'
           Architecture: [1×1 systemcomposer.arch.Architecture]
         SimulinkHandle: 2.0005
                  Views: [0×0 systemcomposer.view.ViewArchitecture]
               Profiles: [0×0 systemcomposer.profile.Profile]
    InterfaceDictionary: [1×1 systemcomposer.interface.Dictionary]

Input Arguments

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Name of model, specified as a character vector or string.

Example: "exMobileRobot"

Data Types: char | string

Output Arguments

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Architecture model, returned as a systemcomposer.arch.Model object.

More About

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TermDefinitionApplicationMore Information

A System Composer™ architecture represents a system of components and how they interface with each other structurally and behaviorally.

Different types of architectures describe different aspects of systems. You can use views to visualize a subset of components in an architecture. You can define parameters on the architecture level using the Parameter Editor.


A System Composer model is the file that contains architectural information, including components, ports, connectors, interfaces, and behaviors.

Perform operations on a model:

  • Extract the root-level architecture contained in the model.

  • Apply profiles.

  • Link interface data dictionaries.

  • Generate instances from model architecture.

A System Composer model is stored as an SLX file.

Create Architecture Model with Interfaces and Requirement Links

A component is a nontrivial, nearly independent, and replaceable part of a system that fulfills a clear function in the context of an architecture. A component defines an architectural element, such as a function, a system, hardware, software, or other conceptual entity. A component can also be a subsystem or subfunction.

Represented as a block, a component is a part of an architecture model that can be separated into reusable artifacts. Transfer information between components with:


A port is a node on a component or architecture that represents a point of interaction with its environment. A port permits the flow of information to and from other components or systems.

These are different types of ports:

  • Component ports are interaction points on the component to other components.

  • Architecture ports are ports on the boundary of the system, whether the boundary is within a component or the overall architecture model.


Connectors are lines that provide connections between ports. Connectors describe how information flows between components or architectures.

A connector allows two components to interact without defining the nature of the interaction. Set an interface on a port to define how the components interact.


Version History

Introduced in R2019a