Modelica CombiTimeTable

Background & Context

    • Modelica CombiTimeTable ASCII format data files.
    • File format used by Modelica.
    • Exported files can be read by Modelica component "Modelica.Blocks.Sources.CombiTimeTable".

Import & Export

Import Elements

  • General Import elements:
  • "Elements" list of elements and options available in this file
    "Summary"summary of the file
    "Rules"list of rules for all available elements
  • Import element:
  • "MCTT" list of rules with {"n1"->datai,…}
  • Export data formats:
  • {{"n1",{{t1,v1},…}},…}time-value pairs {ti,vi} for variable names "ni"
    {{"n1",{v1,…}},…}values vi for variable names "ni"
    {{"n1",ts1},…}TimeSeries tsi for variable names "ni"
    {{"n1",f1},…}samples of functions fi

Options

  • Option for exporting values {v1,…}:
  • SamplingPeriod1distance between samples
  • Options for exporting sampled functions fi:
  • SamplingPeriodAutomaticdistance between samples
    "StartTime"0start time for sampling
    "StopTime"Automaticstop time for sampling

Examples

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Basic Examples  (3)

Export already-sampled data for two variables:

Export a TimeSeries:

Import data as arrays:

Scope  (4)

Do automatic sampling of a function:

Export samples without explicit time points:

Tables with signals in multiple dimensions are supported:

Import data as TimeSeries:

Export Options  (1)

Use SamplingPeriod to sample a function at regular intervals:

Properties & Relations  (1)

Use CreateDataSystemModel to create a SystemModel from data:

Simulate:

Plot the output from the data model: