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Function-Call Subsystem

Subsystem whose execution is controlled by an external function-call input

  • Library:
  • Simulink / Ports & Subsystems

  • Function-Call Subsystem block

Description

The Function-Call Subsystem block is a Subsystem block preconfigured as a starting point for creating a subsystem that executes when a function-call input port receives a function-call event. A Stateflow® chart, Function-Call Generator block, S-Function block, or Hit Crossing block can provide function-call events. See Using Function-Call Subsystems.

Use Function-Call Subsystem blocks to:

  • Schedule the execution order of model components.

  • Control the rate of model component execution.

Simulink® ignores any priority set on a Function-Call Subsystem block, but you can set the priority on a block connected to the subsystem's function-call port. The function-call port can receive a function-call event from a Stateflow chart, Function-Call Generator block, S-Function block, or Hit Crossing block.

For an explanation of the Function-Call Subsystem block parameters, see Subsystem.

Ports

Input

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Signal input to a Subsystem block, specified as a scalar, vector, or matrix. Placing an Inport block in a Subsystem block adds an external input port to the block. The port label matches the name of the Inport block.

Use Inport blocks to receive signals from the local environment.

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | Boolean | fixed point | enumerated | bus

A Trigger block in a Subsystem block adds an external input port to the block. A Trigger type of function-call makes the block a Function-Call port block that accepts function-call events.

Output

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Signal output from a Subsystem block, returned as a scalar, vector, or matrix. Placing an Outport block in a Subsystem block adds an external output port to the block. The port label matches the name of the Outport block.

Use Outport blocks to send signals to the local environment.

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | Boolean | fixed point | enumerated | bus

Block Characteristics

Data Types

Boolean[a] | bus[a] | double[a] | enumerated[a] | fixed point[a] | half[a] | integer[a] | single[a] | string[a]

Direct Feedthrough

no

Multidimensional Signals

limited[a]

Variable-Size Signals

limited[a]

Zero-Crossing Detection

no

[a] Actual data type or capability support depends on block implementation.

Extended Capabilities

PLC Code Generation
Generate Structured Text code using Simulink® PLC Coder™.

Introduced before R2006a