Reset Function

Execute subsystem on model reset event

• Library:

• Simulink / User-Defined Functions

• 

Description

The Reset Function block is a preconfigured Subsystem block that executes on a model reset event. By default, the Reset Function block includes:

• An Event Listener block with the Event type set to Reset and the Event name set to reset

• A Constant block with the Constant value set to 0

• A State Writer block with no State owner block set

Customize the contents of the Reset Function block by, for example, replacing the Constant block with source blocks that generate the state value for the State Writer block and specifying a State owner block for the State Writer block.

Conditionally executed subsystems with output ports are fully supported within Reset Function blocks.

For a list of unsupported blocks and features, see Initialize, Reinitialize, Reset, and Terminate Function Limitations.

A model can potentially have multiple Reset Function blocks with each block having a different Event name. Each of these reset events appear in the generated code as a different function.

You can select an Initialize Function, Reinitialize Function, Reset Function, or Terminate Function block or a corresponding state owner block to highlight blocks related to it. To show a related block in an open diagram or new tab, pause on the ellipsis that appears after selection. Then, select Related Blocks from the action bar. When multiple blocks correspond to the selected block, a list of related blocks opens. You can filter the list of related blocks by entering a search term in the text box. After you select a related block from the list, window focus goes to the open diagram or new tab that shows the related block.

Model Examples

Working with the Initialize Function, Reset Function, and Terminate Function Blocks

Use the Initialize Function, Reset Function, and Terminate Function blocks to read and write states in a Simulink model.

Open Model

Block Characteristics

Data Types	Booleana | busa | doublea | enumerateda | fixed pointa | halfa | integera | singlea | stringa
Direct Feedthrough	no
Multidimensional Signals	yesa
Variable-Size Signals	no
Zero-Crossing Detection	no
a Actual data type or capability support depends on block implementation.

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using Simulink® Coder™.

Actual code generation support depends on block implementation.

Fixed-Point Conversion

Design and simulate fixed-point systems using Fixed-Point Designer™.

Actual data type support depends on block implementation.