Download User's Guide VacSimHigh Vacuum System - INTEC

same type and sub-type as the component (See Components/
Associate Model) and a copy of the model is added to the
component.
If a component has a parameter which may be edited by the
user, the simulator displays a dialog showing the component
value (in the units of measure stored with the parameter). The
user may change the value and the program stores the changed
value with the component’s data.
In order to display the editable parameters in appropriate units,
the Units Library is scanned until the units type (e.g. Pressure,
Temperature etc.) and units of measure (e.g. Torr, atmospheres,
mbar etc.) are matched. The Units Library contains conversion
factors to change from one unit of measure to another. The
parameter for the component is stored in an agreed internal
format (system units), and presented to the user in converted
format.
Linking Components Together
When you link the ports of two components you add to each
connection port a pointer to the other port. Each port can have
an arbitrary number of such links.
The connecting lines which appear on the schematic diagram
are derived from the linkage information but are not part of the
primary data structure used to store the components.
Saving a Schematic Drawing to a File
Each component, in turn is saved to an output stream associated with the file selected as the output (See File/Save). The
current parameter values (in system units) and their current units
of measure are also saved so that if you subsequently retrieve
the component, it will present the parameter in the same units of
measure as you last used.
The list of pointers on each connection port is saved (see
Linking Components Together), but the data structure for the link
lines is not.
The copy of the mathematical model referenced by the compo75