MATLAB: How to obtain the name of the signal and propagated signals associated with a block’s input or output ports

busconnectedinmuxoutsimulink

I am trying to obtain the names of all signals (including propagated signals) associated with a block's input and/or output ports.

I would like to have a MATLAB script file that takes as input the name of the block I am interested in, and give as output, the names of the signals connected to the input and output ports of the block.

Best Answer

There is no built-in function that can find the names of signals connected at a block's input and output ports.

However the attached GET_SIGNAMES function can be used to find the names of signals associated with a block's input and output ports.

Related Solutions

MATLAB: How to modify the input signal names of a Bus Creator block from the command line in Simulink

To modify the names of a Bus Creator block's input signals from the command line, set the block's 'Inputs' parameter to the desired signal names, using SET_PARAM.

Note that you can set this parameter either to the number of input signals, which will automatically turn on the 'Inherit bus signal names from input ports' option, or to the names of input signals, which turns on the 'Require input signal names to match signals below' option.

For more information on the 'Input' parameter of the Bus Creator block see the documentation section titled: 'Block-Specific Parameters'

To open this document automatically execute the follwoing in a R2008a MATLAB command window

web([docroot '/toolbox/simulink/slref/f23-20073.html'])

For example, observe the outputs and the differences between the following two function calls:

% This call changes the number of inputs to 2
% and sets the block to "Inherit bus signal names from input ports"
set_param(gcb,'Inputs','2')
% This call changes the number of inputs to 2,
% the signal names are specified as shown, and the block is set to "Require
% input signal names to match the signals below"
set_param(gcb,'Inputs','''my_first_signal'',''my_second_signal''')

MATLAB: Is it possible to make input or output ports in Simulink to automatically take the name of the signal

There is a ConnectionCallback function which can be implemented for the port of the blocks. This callback is triggered every time connectivity to the port is changes.

Implement this callback for your input and output ports. Inside the callback, you can write the code to get the signal name to which port is connected using get_param() and set the port name using set_param().

See Port Callback.

Best Answer

Related Solutions

MATLAB: How to modify the input signal names of a Bus Creator block from the command line in Simulink

MATLAB: Is it possible to make input or output ports in Simulink to automatically take the name of the signal

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