Reinitialize Function

Description

The Reinitialize Function block is a preconfigured Subsystem block that executes on a model or subsystem reinitialize event. By default, the Reinitialize Function block includes:

Customize the Reinitialize 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.

To generate a model reinitialize event, send a function-call signal to a reinitialize port of a Model block that references a model that contains a Reinitialize Function block. To generate a subsystem reinitialize event, send a function-call signal to a reinitialize port of a Subsystem block that contains a Reinitialize Function block. The reinitialize event has these effects:

To execute a model referenced by a Model block on a reinitialize event, you must place a Reinitialize Function block at the root level of the referenced model. Based on your modeling requirements, you might need to customize the Reinitialize Function block inside the referenced model.

If a Simulink^® based state in a Stateflow^® chart contains a Reinitialize Function block, to generate a subsystem reinitialize event for the state, use a transition event with this syntax:

{StateName.ReinitializeEventName()}

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

A model or subsystem can have multiple Reinitialize Function blocks with each block having a different Event name. Each of these reinitialize events appears in the generated code as a different function. Set the Event name in the block dialog of the Event Listener block. The Event Name appears on the Reinitialize Function block icon, and as the port label for the reinitialize port corresponding to the reinitialize event.

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.