Ramp

Generate constantly increasing or decreasing signal

• 

Libraries:
Simulink / Sources

Description

The Ramp block generates a signal that starts at a specified time and value and changes by a specified rate. The block's Slope, Start time, and Initial output parameters determine the characteristics of the output signal. All must have the same dimensions after scalar expansion.

Examples

Simulating Systems with Variable Transport Delay Phenomena

Two cases where you can use Simulink® to model variable transport delay phenomena.

• Open Model

Ports

Output

Port_1 — Output signal

scalar | vector | matrix

Generated output ramp signal characterized by the Slope, Start time, and Initial output parameters.

Data Types: double

Parameters

Slope — Slope of signal

1 (default) | scalar | vector | matrix

Specify the rate of change of the generated signal.

Programmatic Use

Block Parameter: slope

Type: character vector

Values: scalar

Default: '1'

Start time — Time output begins

0 (default) | scalar

Specify the time at which the block begins generating the signal.

Programmatic Use

Block Parameter: start

Type: character vector

Values: scalar

Default: '0'

Initial output — Initial value of output signal

0 (default) | scalar | vector | matrix

Specify the initial value of the output signal.

Programmatic Use

Block Parameter: InitialOutput

Type: character vector

Values: scalar

Default: '0'

Interpret vector parameters as 1-D — Treat vectors as 1-D

on (default) | off

Select this check box to output a vector of length N if the Slope, Start time, or Initial output parameter evaluates to an N-element row or column vector.

• When you select this check box, the block outputs a vector of length N if the Slope, Start time, or Initial output parameter evaluates to an N-element row or column vector. For example, the block outputs a matrix of dimension 1-by-N or N-by-1.

• When you clear this check box, the block does not output a vector of length N if the Slope, Start time, or Initial output parameter evaluates to an N-element row or column vector.

Programmatic Use

Block Parameter: VectorParams1D

Type: character vector

Values: 'on' | 'off'

Default: 'on'

Block Characteristics

Data Types	double
Direct Feedthrough	no
Multidimensional Signals	no
Variable-Size Signals	no
Zero-Crossing Detection	no

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using Simulink® Coder™.

Not recommended for production code.

Version History

Introduced before R2006a