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Manual Variant Source

Switch between multiple variant choices at input

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  • Manual Variant Source block

Libraries:
Simulink / Signal Routing

Description

The Manual Variant Source block is a toggle switch that activates one of its variant choices at the input to pass through to the output.

A Manual Variant Source block can have two or more input ports and has one output port. Each input port is associated with a variant control. To change the number of input ports, right-click the block and select Mask Parameters, then type a value in the Number of choices box.

To toggle between the variant choices at input, double-click the block. The block displays the active choice with a line connecting the input to the output. The block propagates the active variant choice at input directly to the output and discards the blocks connected to inactive input ports during simulation.

Note

  • Double-clicking the Manual Variant Source block does not open the block dialog box instead it toggles the output choice.

  • Changing the active choice during compile, simulation, or paused states is not supported.

Examples

Provide Variation in Signal Source and Destination Using Manual Variant Source and Manual Variant Sink Blocks

Provide Variation in Signal Source and Destination Using Manual Variant Source and Manual Variant Sink Blocks

Use the inline variant blocks Manual Variant Source and Manual Variant Sink. The Manual Variant Source Block provides variation on the source of a signal. The block is a switch that can have two or more input ports and one output port. Each input port is associated with a variant choice. Only one input port is active during simulation. The active input port determines the active variant region. Similarly, the Manual Variant Sink block provides variation on the destination of a signal. The block can have two or more output ports and one input port. Only one output port can be active during simulation, and the blocks connected to that port determine the active variant.

Variant Source and Variant Sink Blocks

Variant Source and Variant Sink Blocks

Consider the slexVariantSourceAndSink model containing two Variant Source blocks Variant Source1 and Variant Source2, and a Variant Sink block. The variant conditions at the inports and the outports of the Variant Source and the Variant Sink blocks determine the activation and deactivation of the blocks connected to them. V and W are the variant control variables and are defined in the PostLoadFcn callback of the model.

Ports

Input

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First variant input signal. The block passes this input signal to the output port when you connect the toggle switch to this port.

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

nth variant input signal. The block passes this input signal to the output port when you connect the toggle switch to this port.

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

Output

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Output signal passed from the active variant input signal.

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

Parameters

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To access the block parameter, right-click the block and select Mask > Mask Parameters.

Specify the number of variant input ports.

Programmatic Use

Block Parameter: NumChoices
Type: character vector
Value: integer
Default: '2'

Block Characteristics

Data Types

Boolean | bus | double | enumerated | fixed point | half | integer | single | string

Direct Feedthrough

no

Multidimensional Signals

no

Variable-Size Signals

no

Zero-Crossing Detection

no

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

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

Version History

Introduced in R2016b

See Also

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