Bus-Capable Blocks

Blocks that support buses or arrays of buses can accept them as input, produce them as output, store them in memory, or perform a combination of these options. Block support for buses and arrays of buses can depend on block parameter settings.

This table describes whether a block supports virtual buses, nonvirtual buses, and arrays of buses.

Note

Buses that contain signals of enumerated data types do not pass through a block that requires a nonzero scalar initial value (such as a Unit Delay block). Use a structure value to initialize signals with enumerated types.

Block	Virtual Bus Support	Nonvirtual Bus Support	Array of Buses Support
All virtual blocks (see Nonvirtual and Virtual Blocks)	Supported Inport and Outport blocks at the top-level of a model must specify Simulink.Bus object data types.	Supported	Supported with limitations All virtual blocks except Demux, Enable, Mux, and Trigger blocks support arrays of buses.
Argument Inport	Not supported	Supported	Supported
Argument Outport	Not supported	Supported	Supported
Assignment	Not supported Use the Bus Assignment block instead.	Supported	Supported
Bus Assignment	Supported	Supported	Not supported Use the Assignment block instead.
Bus Creator	Supported	Supported	Supported Supports arrays of buses as input. To create arrays of buses, use the Vector Concatenate or Matrix Concatenate block.
Bus Selector	Supported	Supported	Supported Supports arrays of buses as output. To select elements from arrays of buses, use the Selector block.
C Caller	Supported	Supported	Supported
C Function	Supported	Supported	Supported
Chart (Stateflow)	Supported Supports virtual buses when they are defined by a Simulink.Bus object data type.	Supported	Supported
Constant	Not supported	Supported	Supported
Data Store Memory	Not supported	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.
Data Store Read	Not supported	Supported	Supported
Data Store Write	Not supported	Supported	Supported
Delay	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.
From File	Not supported	Supported	Not supported
From Workspace	Not supported	Supported	Supported
Function Caller	Not supported	Supported	Supported
IC	Not supported	Supported	Supported
In Bus Element	Supported	Supported	Supported Supports array of buses as output.
Inport	Supported When receiving a virtual bus at the top-level of a model, the virtual bus must be defined by a Simulink.Bus object data type.	Supported	Supported
Interpolation Using Prelookup	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation. Supports arrays of buses as input.
Manual Switch	Supported	Supported	Supported
MATLAB Function	Supported Supports virtual buses as input when they are defined by a Simulink.Bus object data type. The output bus is nonvirtual.	Supported	Supported
MATLAB System	Supported Supports virtual buses as input when they are defined by a Simulink.Bus object data type. The output bus is nonvirtual.	Supported	Supported
Matrix Concatenate	Not supported Use the Bus Creator block instead.	Supported Supports nonvirtual buses as input. To create nonvirtual buses, use the Bus Creator block.	Supported
Memory	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.
Merge	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.
Model	Supported Supports virtual buses when they are defined by one of these options: Simulink.Bus object data types In Bus Element blocks Out Bus Element blocks	Supported	Supported
Multiport Switch	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.
Out Bus Element	Supported	Supported	Supported Supports arrays of buses as input.
Outport	Supported When connected to a virtual bus at the top-level of a model, the virtual bus must be defined by a Simulink.Bus object data type.	Supported	Supported
Permute Dimensions	Not supported	Supported	Supported
Playback	Supported	Supported	Supported
Prelookup	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.	Supported Supports arrays of buses as output.
Probe	Supported Supports virtual buses as input.	Supported Supports nonvirtual buses as input.	Supported Supports arrays of buses as input.
Rate Transition	Supported	Supported	Supported
Reshape	Not supported	Supported	Supported
S-Function	Supported Supports virtual buses when they are defined by a Simulink.Bus object data type.	Supported	Supported
Selector	Not supported Use the Bus Selector block instead.	Supported Supports nonvirtual buses as output. To select elements from nonvirtual buses, use the Bus Selector block.	Supported
Signal Conversion	Supported To convert a virtual bus to a nonvirtual bus, specify a Simulink.Bus object data type for the bus. For more information, see the block documentation.	Supported	Supported Supports array of buses when Output is set to Signal copy. For more information, see the block documentation.
Signal Editor	Not supported	Supported For requirements, see the block documentation.	Supported
State Reader	Not supported	Supported	Supported
State Writer	Not supported	Supported	Supported
Subsystem	Supported	Supported	Supported
Switch	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.
To File	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.	Not supported
To Workspace	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.	Supported For requirements, see the block documentation.
Unit Delay	Supported	Supported	Supported
Vector Concatenate	Not supported Use the Bus Creator block instead.	Supported Supports nonvirtual buses as input. For requirements, see the block documentation.	Supported For requirements, see the block documentation.
Width	Supported Supports virtual buses as input.	Supported Supports nonvirtual buses as input.	Supported Supports arrays of buses as input.
Zero-Order Hold	Supported	Supported	Supported