Display

Show value of input

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Library:
Simulink / Sinks
HDL Coder / Sinks

Description

TheDisplayblock shows the value of the input data. You can specify the frequency of the display. For numeric input data, you can also specify the format of display.

If the block input is an array, you can resize the block vertically or horizontally to show more than just the first element. If the block input is a vector, the block sequentially adds display fields from left to right and top to bottom. The block displays as many values as possible. A black triangle indicates that the block is not displaying all input array elements.

TheDisplayblock shows the first 200 elements of a vector signal and the first 20 rows and 10 columns of a matrix signal.

Note

If you specify a numeric display format that is not large enough to display all the digits of a value, the displayed values may lose precision. The result depends on your computer hardware and operating system.

Display Abbreviations

The following abbreviations appear on theDisplayblock to help you identify the format of the value.

When You See...	The Value That Appears Is...
`(SI)`	存储的整数值 Note `(SI)`does not appear when the signal is of an integer data type.
`hex`	In hexadecimal format
`bin`	In binary format
`oct`	In octal format

Displaying Strings

When working with strings, theDisplayblock displays:

Strings with double quotes.
Special characters such as newline are shown as escaped sequences, for example'\n'.
Non-displayable characters as escaped octal number, for example'\201'.

If the incoming signal is of type string, theNumeric display formatparameter selection does not affect the display of the string.

Ports

Input

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`Port_1`— Input data
scalar | vector

Input data to display.

Parameters

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`Numeric display format`— Format to display numeric input data
`short`(default) |`long`|`short_e`|`long_e`|`bank`|`hex (Stored Integer)`|`binary (Stored Integer)`|`decimal (Stored Integer)`|`octal (Stored Integer)`

Specify the format of the numeric data that appears.

If You Select...	The Block Displays...
`short`	A 5-digit scaled value with fixed decimal point
`long`	A 15-digit scaled value with fixed decimal point
`short_e`	A 5-digit value with a floating decimal point
`long_e`	A 16-digit value with a floating decimal point
`bank`	A value in fixed dollars and cents format (but with no $ or commas)
`hex (Stored Integer)`	存储的整数值of a fixed-point input in hexadecimal format
`binary (Stored Integer)`	存储的整数值of a fixed-point input in binary format
`decimal (Stored Integer)`	存储的整数值of a fixed-point input in decimal format
`octal (Stored Integer)`	存储的整数值of a fixed-point input in octal format

If the numeric input to aDisplayblock has an enumerated data type (seeSimulink EnumerationsandDefine Simulink Enumerations):

The block displays enumerated values, not the values of underlying integers.
SettingNumeric display formatto any of theStored Integersettings causes an error.

If the incoming signal is of type string, the selection of theNumeric display formatparameter does not affect the display of the string.

Programmatic Use

Block Parameter:Format

Type:character vector

Default:'short'

`Decimation`— Display rate
`1`(default) |`integer`

Specify how often to display data.

The amount of data that appears and the time steps at which the data appears depend on theDecimationblock parameter and theSampleTimeproperty.

TheDecimationparameter enables you to display data at everynth sample, wherenis the decimation factor. The default decimation,1, displays data at every time step.

Note

显示块initi更新其显示al time, even when theDecimationvalue is greater than one.
TheSampleTimeproperty, which you can set withset_param, enables you to specify a sampling interval at which to display points. This property is useful when you are using a variable-step solver where the interval between time steps is not the same. The default sample time,-1, causes the block to ignore the sampling interval when determining the points to display.

Note

If the block inherits a sample time ofInf,Decimationparameter is ignored.

Programmatic Use

Block Parameter:Decimation

Type:character vector

Values:'1'| integer

Default:'1'

`Floating display`——浮动显示
`off`(default) |`on`

To use the block as a floating display, select theFloating displaycheck box. The block input port disappears and the block displays the value of the signal on a selected line.

If you selectFloating display:

Turn off signal storage reuse for your model. SeeSignal storage reuse(Simulink Coder)for more information.
Do not connect a multidimensional signal to a floating display.

Programmatic Use

Block Parameter:Floating

Type: character vector

Values:'on'|'off'

Default:'on'

Model Examples

Simulating Automatic Climate Control Systems

Simulate an automatic climate control system in a car using Simulink® and Stateflow®. In the User Setpoint in Celsius block, enter a value for the desired air temperature in the car.

Open Model

Sum Block Reorders Inputs

How the Sum block reorders inputs.

Open Model

Scalar Expansion with the Coulomb and Viscous Friction Block

A model with a scalar input to a Coulomb & Viscous Friction block that uses scalar expansion to output a vector.

Open Model

Block Characteristics

Data Types	`Boolean`\|`double`\|`enumerated`\|`fixed point`\|`half`\|`integer`\|`single`\|`string`
Direct Feedthrough	`yes`
Multidimensional Signals	`no`
Variable-Size Signals	`yes`
Zero-Crossing Detection	`no`

Extended Capabilities

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

Ignored for code generation.

HDL Code Generation
Generate Verilog and VHDL code for FPGA and ASIC designs using HDL Coder™.

This block can be used for simulation visibility in subsystems that generate HDL code, but is not included in the hardware implementation.

Display