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Enabled and Triggered Subsystem

Subsystem whose execution is enabled and triggered by external inputs

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  • Simulink / Ports & Subsystems

  • Enabled and Triggered Subsystem block

Description

TheEnabled and Triggered Subsystemblock is a subsystem block preconfigured as a starting point for creating a subsystem that executes when both of these conditions occur:

  • Enable control signal has a positive value.

  • Trigger control signal has a trigger value.

UseEnabled and Triggered Subsystemblocks to model:

  • Optional functionality.

  • Alternative functionality.

For an explanation of theEnabled and Triggered Subsystemblock parameters, seeSubsystem.

Ports

Input

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Placing anInportblock in a subsystem block adds an external input port to the block. The port label matches the name of theInportblock.

UseInportblocks to get signals from the local environment.

Data Types:一半|single|double|int8|int16|int32|int64|uint8|uint16|uint32|uint64|Boolean|fixed point|enumerated|bus

Placing anEnableblock in a subsystem block adds an external input port to the block.

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

Placing aTriggerblock in a subsystem block adds an external input port to the block.

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

Output

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Placing anOutportblock in a subsystem block adds an output port from the block. The port label on the subsystem block is the name of theOutportblock.

UseOutportblocks to send signals to the local environment.

Data Types:一半|single|double|int8|int16|int32|int64|uint8|uint16|uint32|uint64|Boolean|fixed point|enumerated|bus

Model Examples

Counters Using Conditionally Executed Subsystems

Counters Using Conditionally Executed Subsystems

The contrast between enabled subsystems and triggered subsystems for the same control signal, through the use of counter circuits. After running the simulation, the scope shows three plots.
Open Model

Block Characteristics

Data Types

Booleana|busa|doublea|enumerateda|fixed pointa|一半a|integera|singlea|stringa

Direct Feedthrough

no

Multidimensional Signals

limiteda

Variable-Size Signals

limiteda

Zero-Crossing Detection

no

aActual data type or capability support depends on block implementation.

Extended Capabilities

版本历史

Introduced before R2006a

See Also

Blocks

Topics