accessing Data associated with bus signal inside a s-function

Hi, Is it possible to access data associated with a signal which is output of a bus creator in its structure form? For example I have two signals (signal1 and signal2) , I send them to a bus creator whose output is signal3. So Signal3 is now a structure. I have to access the data associated with signal1 and signal2 in s-function in following way. Signal1_Data = signal3. signal1; Signal2_Data = signal3.signal2;

Is it possible?

Thanks, Jagmohan

Answer 1

[TAB]

You can access the bus signal data in the s-function in the same way you have mentioned (ie in structure format)

Bus Input/Output support for s-function, using S-function builder is included from Simulink 7.3 (R2009a).

See a similar thread here.

Also see

S-functions, Bus Signals, and Missing Documentation

Input and output Bus signals to and from an S-function

[Jagmohan singh]

Hi thanks for the answer.

But I couldnt find the properties 'Bus' and 'Bus Name' in 'Data Properties' Tab of s-function builder block.

And Is it not possible to use Level-2 s-function ? I could not find any property like 'Bus' or 'Bus Name' also in its properties.

Currently I am working on Matlab2006b.

Thanks

[TAB]

This feature is not available in s-function builder of 2006b and I am not aware how to access the bus in s-function manually.

[Kaustubha Govind]

Bus support is not available in MATLAB S-functions. Bus signals are supported in (Embedded) MATLAB Function blocks and C-MEX S-functions however.

[Erwin Torreao Dassen]

I really need bus signal support in a level 2-M S-function. This should be supported... (Feature request??)

Any work around to work with a "struct-like" data type in an M S-function?