RAMP

Ramp

Block Screenshot

Contents

• Ramp +

  • Palette
  • Description
  • Data types
  • Dialog box
  • Default properties
  • Example
  • Interfacing function
  • Computational function
  • See also

Palette

• Sources palette

Description

The Ramp block generates a signal that starts at a specified Start Time and Initial Value and increases by a specified rate ( Slope parameter). The output signal is defined by the following equation:

where * `t 0 `* is the Start Time, * `s 0 `* the Initial Value and * `k`* the Slope.

Data types

• Output: scalar double.

Dialog box

• Slope Scalar. The rate of change of the generated signal. Properties : Type ‘vec’ of size 1.
• Start Time Scalar. The time at which the signal begins to increase. Properties : Type ‘vec’ of size 1.
• Initial Value Scalar. The initial value of the signal. Properties : Type ‘vec’ of size 1.

Default properties

• always active: yes
• direct-feedthrough: no
• zero-crossing: yes
• mode: yes
• regular outputs: - port 1 : size [1,1] / type 1
• number/sizes of activation inputs: 0
• number/sizes of activation outputs: 0
• continuous-time state: no
• discrete-time state: no
• object discrete-time state: no
• name of computational function: ramp

Example

This diagram shows the use of RAMP block to obtain the response to a ramp signal of a first order’s system defined by a transfer function. Open this example in Xcos .

Interfacing function

• SCI/modules/scicos_blocks/macros/Sources/RAMP.sci

Computational function

• SCI/modules/scicos_blocks/src/c/ramp.c (Type 4)

See also

• STEP_FUNCTION
• CURV_f
• Sigbuilder