Data Types Supported by Simulink :: Working with Data (Using Simulink)

Using Simulink

Data Types Supported by Simulink

Simulink supports all built-in MATLAB data types except int64 and uint64. The term built-in data type refers to data types defined by MATLAB itself as opposed to data types defined by MATLAB users. Unless otherwise specified, the term data type in the Simulink documentation refers to built-in data types. The following table lists the built-in MATLAB data types supported by Simulink.

Name
Description

double
Double-precision floating point

single
Single-precision floating point

int8
Signed 8-bit integer

uint8
Unsigned 8-bit integer

int16
Signed 16-bit integer

uint16
Unsigned 16-bit integer

int32
Signed 32-bit integer

uint32
Unsigned 32-bit integer

Name	Description
`double`	Double-precision floating point
`single`	Single-precision floating point
`int8`	Signed 8-bit integer
`uint8`	Unsigned 8-bit integer
`int16`	Signed 16-bit integer
`uint16`	Unsigned 16-bit integer
`int32`	Signed 32-bit integer
`uint32`	Unsigned 32-bit integer

Besides the built-in types, Simulink defines a boolean (1 or 0) type, instances of which are represented internally by uint8 values. Many Simulink blocks also support fixed-point data types. See Simulink Blocks in the online Simulink documentation for information on the data types supported by specific blocks for parameter and input and output values. If the documentation for a block does not specify a data type, the block inputs or outputs only data of type double.

Working with Data Types Fixed-Point Data