Simulink Reference

Display

Show the value of the input

Library

Sinks

Description

The Display block shows the value of its input on its icon.

You control the display format using the Format parameter:

• short -- displays a 5-digit scaled value with fixed decimal point
• long -- displays a 15-digit scaled value with fixed decimal point
• short_e -- displays a 5-digit value with a floating decimal point
• long_e -- displays a 16-digit value with a floating decimal point
• bank -- displays a value in fixed dollars and cents format (but with no $ or commas)
• hex (Stored Integer) -- displays the stored integer value of a fixed-point input in hexadecimal format
• binary (Stored Integer) -- displays the stored integer value of a fixed-point input in binary format
• decimal (Stored Integer) -- displays the stored integer value of a fixed-point input in decimal format
• octal (Stored Integer) -- displays the stored integer value of a fixed-point input in octal format

The amount of data displayed and the time steps at which the data is displayed are determined by block parameters:

• The Decimation parameter enables you to display data at every nth sample, where n is the decimation factor. The default decimation, 1, displays data at every time step.
• The Sample time parameter enables you to specify a sampling interval at which to display points. This parameter is useful when you are using a variable-step solver where the interval between time steps might not be the same. The default value of -1 causes the block to ignore the sampling interval when determining the points to display.

If the block input is an array, you can resize the block to show more than just the first element. You can resize the block vertically or horizontally; the block adds display fields in the appropriate direction. A black triangle indicates that the block is not displaying all input array elements. For example, the following figure shows a model that passes a vector (1-D array) to a Display block. The top model shows the block before it is resized; notice the black triangle. The bottom model shows the resized block displaying both input elements.

Note that the Display block displays up to ten columns of a matrix.

Display Abbreviations

The following abbreviations appear on the Display block to help you identify the format of the number being displayed.

Symbol	Description
(SI)	This alerts you to the fact that the number being displayed is the stored integer value. This symbol does not appear when the signal is of an integer data type.
hex	The number being displayed is in hexadecimal format.
bin	The number being displayed is in binary format.
oct	The number being displayed is in octal format.

Floating Display

To use the block as a floating display, select the Floating display check box. The block's input port disappears and the block displays the value of the signal on a selected line. If you select the Floating display option, you must turn off the signal storage reuse feature in Simulink. See "Signal storage reuse" in the Using Simulink documentation for more information.

Data Type Support

The Display block accepts and outputs real or complex signals of any data type supported by Simulink, including fixed-point data types.

For a discussion on the data types supported by Simulink, refer to Data Types Supported by Simulink in the Using Simulink documentation.

Parameters and Dialog Box

Format

Specify the format of the data displayed, as discussed in Description. The default is short.

Decimation

Specify how often to display data. The default value, 1, displays every input point.

Floating display

If selected, the block's input port disappears, which enables the block to be used as a floating Display block.

Sample time

Specify the sample time at which to display points. See Specifying Sample Time in the online documentation for more information.

Characteristics

Sample Time	Specified in the Sample time parameter
Dimensionalized	Yes

Discrete Zero-Pole

Divide

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