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Signal Conversion - Convert signal to new type without altering signal values

Library

Signal Attributes

Description

The Signal Conversion block converts a signal from one type to another. Use the Output parameter to select the type of conversion to perform.

Data Type Support

The Signal Conversion block accepts virtual or nonvirtual signals of any data type.

Parameters and Dialog Box

Output

Specifies the type of conversion to perform. The options are:

• Contiguous copy

  Converts a muxed signal, whose elements occupy discontiguous areas of memory, to a vector signal, whose elements occupy contiguous areas of memory. The block does this by allocating a contiguous area of memory for the elements of the muxed signal and copying the values from the discontiguous areas (represented by the block's input) to the contiguous areas (represented by the block's output) at each time step. You can also use this setting to connect a block with a constant sample time to an output port of an enabled subsystem. For more information, see Using Blocks with Constant Sample Times in Enabled Subsystems. For an example involving Real-Time Workshop software, see Reusable Code and Referenced Models.

• Bus copy

  Outputs a copy of the bus connected to the block's input. This setting is useful when passing a bus signal whose components have different data types to a nonvirtual Inport block in an Atomic Subsystem. See Using Composite Signals in the Simulink documentation for more information.

• Virtual bus

  Converts a nonvirtual bus to a virtual bus. In general, virtual buses can save memory where nonvirtual buses are not required.

• Nonvirtual bus

  Converts a virtual bus to a nonvirtual bus as in the following example. This setting is useful when passing a virtual bus signal to a modeling construct that requires a nonvirtual bus, such as a Model block.

  

Note   The virtual bus to be converted to a nonvirtual bus must be defined by a bus object, for example, an instance of Simulink.Bus class. See the Bus Creator block for more information.

Exclude this block from 'Block reduction' optimization

This option is available only for Contiguous copy conversion. If the elements of the input signal occupy contiguous areas of memory, Simulink software eliminates the block from the compiled model as an optimization. That action does not occur when you select this check box. For more information, see Block reduction in the Simulink documentation.

Characteristics

Sample Time	Inherited from the driving block
Scalar Expansion	n/a
Dimensionalized	n/a
Multidimensionalized	Yes
Zero-Crossing Detection	No

Signal Builder

Signal Generator

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