Opening a Model
Introduction
Opening a model both brings the model into memory and displays
the model graphically. You can also bring a model into memory without
displaying it, as described in Loading a Model.
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Opening an Existing Model
To open an existing model diagram, either:
Click the Open button
on the Library Browser's toolbar (Windows operating systems only)
or select Open from the Simulink library
window's File menu and then choose
or enter the file name for the model to edit.
Enter the name of the model (without the .mdl extension)
in the MATLAB software Command Window. The model must be in the
current directory or on the path.
Note
If you have an earlier version of the Simulink software,
and you want to open a model that was created in a later version,
you must first use the later version to save the model in a format
compatible with the earlier version. You can then open the model in
the earlier version. See Saving a Model in an Earlier Simulink Version for details. |
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Opening Models with Different Character Encodings
If you open a model created in a MATLAB software session
configured to support one character set encoding, for example, Shift_JIS,
in a session configured to support another character encoding, for
example, US_ASCII, the Simulink software displays
a warning or an error message, depending on whether it can or cannot
encode the model, using the current character encoding, respectively.
The warning or error message specifies the encoding of the current
session and the encoding used to create the model. To avoid corrupting
the model (see Saving Models with Different Character Encodings) and ensure
correct display of the model's text, you should:
Close all models open in the current
session.
Use the slCharacterEncoding command
to change the character encoding of the current MATLAB software
session to that of the model as specified in the warning message.
Reopen the model.
You can now safely edit and save the model.
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Avoiding Initial Model Open Delay
You may notice that the first model that you open in a MATLAB technical
computing environment session takes longer to open than do subsequent
models. This is because to reduce its own startup time and to avoid
unnecessary consumption of your system's memory, the MATLAB software
does not load the Simulink product into memory until the first
time you open a Simulink model. You can cause the MATLAB technical
computing environment to load the Simulink software when the MATLAB product
starts up, and thus avoid the initial model opening delay. This can
be done by using either the -r command line option
or your MATLAB software startup.m file to
run either load_simulink (loads the Simulink product)
or simulink (loads the Simulink product and
opens the Simulink Library browser). For example, to load the Simulink product
when the MATLAB software starts up on a computer running the Microsoft® Windows operating
system, create a desktop shortcut with the following target:
matlabroot\bin\win32\matlab.exe -r load_simulink
Similarly, the following command loads the Simulink software
when the MATLAB software starts up on UNIX® systems, systems:
matlab -r load_simulink
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 | Starting Simulink Software | | Loading a Model |  |
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