WOLFRAM

WOLFRAM SYSTEM MODELER

Discrete

Library of discrete input/output blocks with fixed sample period

Package Contents

Sampler

Ideal sampling of continuous signals

ZeroOrderHold

Zero order hold of a sampled-data system

FirstOrderHold

First order hold of a sampled-data system

UnitDelay

Unit Delay Block

TransferFunction

Discrete Transfer Function block

StateSpace

Discrete State Space block

TriggeredSampler

Triggered sampling of continuous signals

TriggeredMax

Compute maximum, absolute value of continuous signal at trigger instants

Information

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

This package contains discrete control blocks with fixed sample period. Every component of this package is structured in the following way:

  1. A component has continuous real input and output signals.
  2. The input signals are sampled by the given sample period defined via parameter samplePeriod. The first sample instant is defined by parameter startTime.
  3. The output signals are computed from the sampled input signals.

A sampled data system may consist of components of package Discrete and of every other purely algebraic input/output block, such as the components of packages Modelica.Blocks.Math, Modelica.Blocks.Nonlinear or Modelica.Blocks.Sources.

Wolfram Language

In[1]:=
SystemModel["Modelica.Blocks.Discrete"]
Out[1]:=

Revisions

  • October 21, 2002 by Martin Otter:
    New components TriggeredSampler and TriggeredMax added.
  • June 18, 2000 by Martin Otter:
    Realized based on a corresponding library of Dieter Moormann and Hilding Elmqvist.