Implement Blocks with System Objects
MATLAB System block uses System object to implement MATLAB® algorithms in Simulink. Before you begin using a MATLAB System block, you must have a System object to associate with a block. A System object is a special kind of MATLAB class and they are designed specifically for the implementation and simulation of dynamic systems.
Blocks
MATLAB System | Include System object in model |
Examples and How To
- Implement a MATLAB System Block
Implement a block and assign a System object to it.
- Change Blocks Implemented with System Objects
Implement a block with another System object.
- Specify Sample Time for MATLAB System Block
The sample time of a block is a parameter that indicates when the block produces an output, and eventually updates its internal state.
- Call Simulink Functions from MATLAB System Block
Learn to call a Simulink function from a MATLAB System block.
- Change Block Icon and Port Labels
Change the icon appearance of your block.
- Add and Implement Propagation Methods
To define output specifications, use propagation methods.
- Use System Objects in Feedback Loops
Process nondirect feedthrough data through the System object.
- Share Data with Other Blocks
Share data between MATLAB System and other blocks using the
global
keyword and the Data Store Memory block orSimulink.Signal
object. - Call Python Function Using MATLAB Function and MATLAB System Block
This example shows how to call a Python® function in Simulink® that sorts random numbers using a Python® sorting function and two different blocks: the MATLAB Function block and MATLAB System block.
- Model Moving Target Visualization by Converting MATLAB Code to Simulink Behavior
This topic shows how to convert MATLAB code to a Simulink model.
Concepts
- MATLAB System Block
Implement your own algorithms using System objects.
- Mapping System Object Code to MATLAB System Block Dialog Box
The System object source code controls the appearance of the block dialog box.
- Simulation Modes
You can use MATLAB System block in Simulink models for simulation via interpreted execution or code generation.
- Simulink Engine Interaction with System Object Methods
Follow a process view of the order in which the MATLAB System block invokes System object methods within the context of the Simulink engine.
- Nonvirtual Buses and MATLAB System Block
Use nonvirtual buses as input and output signals.
- Share Data with Other Blocks
Share data between MATLAB System and other blocks using the
global
keyword and the Data Store Memory block orSimulink.Signal
object. - Considerations for Using System Objects in Simulink
Consider these guidelines when working with variable-size signals, tunable parameters, and For Each subsystems.
Troubleshooting
Troubleshoot System Objects in Simulink
Use these guidelines to troubleshoot System objects in Simulink.