SIMPLORER User Manual V6.0 - FER-a

Separate Component Characteristic
SIMPLORER 6.0 — Manual 297
The separate component characteristic dialog is used if you define a characteristic directly in
the dialog of components using nonlinear characteristics.
Characteristic Dialog Settings
� «Reference»
The characteristic of the component is defined by an 2D Lookup Table XY component. Enter
the name in the text box. See also “2D Lookup Table XY” on page 295.
� «Lookup Table»
The lookup table option is selected. Select «File Reference» or «Data Pairs».
� «File Reference»
The file reference option is selected. Enter a variable name, referring to a file name, in the text
box.
� «Data Pairs»
If no file is used, enter the data-pairs in the table. Create, delete, or move entries with the
symbols placed on the upper right side. See also “Defining Parameters” on page 49.
Click the button to display the 2D lookup table with the defined values. Please note: If you
use variables for the definition, the preview is empty. Click in the dialog window to refresh
the representation when values were changed in the table view.
«Monotony»
If X values are not monotonous rising, the text «Function not monotonous» is displayed.
� «File Name»
To define the data points, a two-dimensional data file is used which can be created by the
DAY Post Processor or a text editor. The XY data file always has two channels (columns)
where X value and Y value are stored. The length (number of lines) of the data files is arbitrary.
To open or save files, click the symbols next to the text box. Please note: Select the correct
file filter (.mdx) before browsing. See also “The .mdx File Format” on page 467.
3D Lookup Table
>>Basics>Tools>Characteristics
The 3D Lookup Table is used from components to describe nonlinear behavior different from
the predefined characteristics, for example a temperature-dependent resistor. The 3D Lookup
Table uses a special .mdx file which describes a parameter-dependent family of characteristics;
during the simulation the component determines the required values by interpolation or
extrapolation from the values in the .mdx file. The characteristics can are given through XYZ
Data sets. It is possible to create data files with:
• the component dialog
• the DAY Post Processor, or
• a text editor.
The .mdx file is composed of characteristic blocks with 3 channels. For each parameter value
(which represents, for example, a temperature) the values of the corresponding characteristic
are defined. See also “The .mdx File Format” on page 467.