MATLAB: Can I create a bus object with elements derived from a list of names in a text file in Simulink 6.2.1 (R14SP2+)

busfileflatlistnamesobjectofsimulink

I have a text file that has a list of names that I would like to use as elements of a bus object I would like to create.

Best Answer

This enhancement has been incorporated in Simulink 7.1 (R2008a) in form of Import/Export option for Bus Editor.

For previous product releases, read below for any possible workarounds:

You can use the attached file to create a bus object that uses a list of names from a text file as its list of elements. The syntax to use this file is as follows:

MyBusObj = bus_from_text ('my_bus_names.txt');

where my_bus_names.txt is the name of the text file you wish to import from. Note that the text file should have each element on a separate line and that it assumes all elements are of type 'double.' An example text file is attached. If you wish to change this after importing the text file, you can use the buseditor GUI by typing the following command at the MATLAB Command Prompt:

buseditor

For more information on the buseditor GUI, type the following command:

doc buseditor

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MATLAB: How to retrieve names of signals in a bus when the signal names have been propagated by Simulink

This enhancement has been incorporated in Release 2010a (R2010a). For previous product releases, read below for any possible workarounds:

The ability to use a command-line command to retrieve the names of propagated signals in a bus signal is not available in Simulink.

To work around this issue, use the following code:

busdemo
ph = get_param('busdemo/Bus Creator', 'porthandles')
set_param(ph.Outport, 'CacheCompiledBusStruct', 'on')
busdemo([],[],[],'compile')
bs = get_param(ph.Outport, 'CompiledBusStruct')
busdemo([],[],[],'term')

The variable 'bs' will contain information on the bus signal coming out of the Bus Creator. You can recursively walk through this structure to determine all actual sources of the bus and hence all source data types, dimensions, signal names, etc.

Note that the following code makes use of the internal compiled property 'CacheCompiledBusStruct' and hence is subject to change in future releases.

Another workaround to retrieve the names of signals in a bus is to pass all the Bus Creator outputs to a Bus Selector block, which selects all of the signals from the Bus Creator block, then use the following code to extract the signal names, where the Bus Selector block is the currently selected block:

get_param(gcb, 'OutputSignals')

MATLAB: What new features were added and bugs fixed in Stateflow 6.2.1 (R14SP2+) and Stateflow Coder 6.2.1 (R14SP2+)

Although the version and release numbers of Stateflow 6.2 (R14SP2) and Stateflow Coder 6.2 (R14SP2) were incremented to Stateflow 6.2.1 (R14SP2+) and Stateflow Coder 6.2.1 (R14SP2+), no changes were made to these products. Consequently, the Release Notes correctly identify that information regarding the latest changes is found in the Stateflow 6.2 (R14SP2) and Stateflow Coder 6.2 (R14SP2) sections.

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Related Solutions

MATLAB: How to retrieve names of signals in a bus when the signal names have been propagated by Simulink

MATLAB: What new features were added and bugs fixed in Stateflow 6.2.1 (R14SP2+) and Stateflow Coder 6.2.1 (R14SP2+)

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