MATLAB: How to rename signals in a bus in Simulink 7.4 (R2009b)

businterfacenamesrenamesignalsimulink

I would like to connect multiple blocks that use buses as inputs and outputs. However the names of the signals in the bus that comes out of one block do not match the names of the signals in the other block. I would like to know if there is an easy way to create an interface between both blocks that 'renames' the signals in the buses instead of extracting all signals from the bus and constructing a new bus from it.

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It is possible to create such an interface using an Embedded MATLAB block and a Simulink.Bus object. The Embedded MATLAB block can be used to copy its input to its output, while the structure of the output is determined by the Simulink.Bus object. As an example, load the attached file "my_bus_signals.mat" and run the attached model. You will notice that the signals a, b and c and renamed to d, e and f

Related Solutions

MATLAB: How to populate the signal names to match the bus object signal names in the Bus Creator block in Simulink 6.6 (R2007a)

The ability to assign signal names automatically from the specified Bus Object is not available in Simulink 6.6 (R2007a).

It is possible to create a script that automatically assigns the names specified in the Bus Object Elements to the signals connected to the bus object. For an example, download the attached files MainBus.mat, BusToBeNamed.mdl and DefineInputs.m. The Simulink model contains a Bus Creator block assiciated with a Bus Object. The following example MATLAB code can be used to assign the appropriate names to the signals connected to the bus.

load MainBus
open_system('BusToBeNamed');
S = Simulink.Bus.objectToCell({'MainBus'});
blk = 'BusToBeNamed/Bus Creator';  
ph = get_param(blk,'PortHandles');
lh = get_param(ph.Inport,'Line');
N = length(S{1}{4});
for i = 1:N
      set(lh{i},'Name',S{1}{4}{i}{1});
end

MATLAB: Do I receive an error when I connect a Bus Selector block to the output of a Signal Conversion Block in Simulink 6.1 (R14SP1)

This bug has been fixed in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:

This is the expected behavior of a bus signal. If a bus enters a Signal Conversion block whose mode is set to contiguous copy, the signal leaving the block should be treated as a vector. Specifically, a Bus Selector block should not be placed on the signal leaving the block. Even if a Bus Selector is connected to the signal leaving the Signal Conversion block, the signals in the bus will be visible in the Bus Selector dialog box. Therefore, although it may appear that it is valid to use the Bus Selector on that signal, this practice is not permitted.

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Related Solutions

MATLAB: How to populate the signal names to match the bus object signal names in the Bus Creator block in Simulink 6.6 (R2007a)

MATLAB: Do I receive an error when I connect a Bus Selector block to the output of a Signal Conversion Block in Simulink 6.1 (R14SP1)

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