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Repeating Sequence Stair - Output and repeat discrete time sequence

Library

Sources

Description

The Repeating Sequence Stair block outputs and repeats a discrete time sequence.

You can specify the stair sequence with the Vector of output values parameter. For example, the vector can be specified as [3 1 2 4 1]', producing the stair sequence shown in the plot.

Data Type Support

The Repeating Sequence Stair block accepts signals of the following data types:

Floating-point
Built-in integer
Fixed-point
Boolean

For more information, see Data Types Supported by Simulink in the Simulink documentation.

Parameters and Dialog Box

The Main pane of the Repeating Sequence Stair block dialog box appears as follows:

Vector of output values: Vector containing values of the repeating stair sequence.
Sample time: Specify the time interval between samples. To inherit the sample time, set this parameter to -1. See How to Specify the Sample Time in the Simulink User's Guide for more information.

The Signal Attributes pane of the Repeating Sequence Stair block dialog box appears as follows:

Output minimum

Specify the minimum value that the block should output. The default value, [], is equivalent to -Inf. Simulink software uses this value to perform:

Parameter range checking (see Checking Parameter Values)
Simulation range checking (see Checking Signal Ranges)
Automatic scaling of fixed-point data types

Output maximum

Specify the maximum value that the block should output. The default value, [], is equivalent to Inf. Simulink software uses this value to perform:

Parameter range checking (see Checking Parameter Values)
Simulation range checking (see Checking Signal Ranges)
Automatic scaling of fixed-point data types

Output data type

Specify the output data type. You can set it to:

A rule that inherits a data type, for example, Inherit: Inherit via back propagation
The name of a built-in data type, for example, single
The name of a data type object, for example, a Simulink.NumericType object
An expression that evaluates to a data type, for example, fixdt(1,16,0)

Click the Show data type assistant button to display the Data Type Assistant, which helps you set the Output data type parameter.

See Specifying Block Output Data Types for more information.

Lock output data type setting against changes by the fixed-point tools

Select to lock the output data type setting of this block against changes by the Fixed-Point Tool and the Fixed-Point Advisor. For more information, see Fixed-Point Tool and Fixed-Point Advisor in the Simulink Fixed Point documentation.

Characteristics

Sample Time	Specified in the Sample time parameter
Scalar Expansion	No
Zero-Crossing Detection	No