WOLFRAM SYSTEMMODELER

Sources

Library of signal source blocks generating Real, Integer and Boolean signals

Package Contents

RealExpression

Set output signal to a time varying Real expression

IntegerExpression

Set output signal to a time varying Integer expression

BooleanExpression

Set output signal to a time varying Boolean expression

Clock

Generate actual time signal

Constant

Generate constant signal of type Real

Step

Generate step signal of type Real

Ramp

Generate ramp signal

Sine

Generate sine signal

Cosine

Generate cosine signal

ExpSine

Generate exponentially damped sine signal

Exponentials

Generate a rising and falling exponential signal

Pulse

Generate pulse signal of type Real

SawTooth

Generate saw tooth signal

Trapezoid

Generate trapezoidal signal of type Real

KinematicPTP

Move as fast as possible along a distance within given kinematic constraints

KinematicPTP2

Move as fast as possible from start to end position within given kinematic constraints with output signals q, qd=der(q), qdd=der(qd)

TimeTable

Generate a (possibly discontinuous) signal by linear interpolation in a table

CombiTimeTable

Table look-up with respect to time and linear/periodic extrapolation methods (data from matrix/file)

BooleanParameter

Generate parameter signal of type Boolean

BooleanConstant

Legacy name for a source with parameter variability Boolean output.

BooleanConstantVariability

Generate constant signal of type Boolean

BooleanStep

Generate step signal of type Boolean

BooleanPulse

Generate pulse signal of type Boolean

SampleTrigger

Generate sample trigger signal

BooleanTable

Generate a Boolean output signal based on a vector of time instants

RadioButtonSource

Boolean signal source that mimics a radio button

IntegerConstant

Generate constant signal of type Integer

IntegerStep

Generate step signal of type Integer

IntegerTable

Generate an Integer output signal based on a table matrix with [time, yi] values

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

This package contains source components, i.e., blocks which have only output signals. These blocks are used as signal generators for Real, Integer and Boolean signals.

All Real source signals (with the exception of the Constant source) have at least the following two parameters:

offset Value which is added to the signal
startTime Start time of signal. For time < startTime, the output y is set to offset.

The offset parameter is especially useful in order to shift the corresponding source, such that at initial time the system is stationary. To determine the corresponding value of offset, usually requires a trimming calculation.

Wolfram Language

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