Is it possible to connect to a UDP multicast using the Instrument Control Toolbox 2.2 (R14SP2)?
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MathWorks Support Team
on 29 Oct 2009
Edited: MathWorks Support Team
on 4 May 2023
I would like to make a connection to UDP multicast using the Instrument Control Toolbox 2.2 (R14SP2).
Accepted Answer
MathWorks Support Team
on 4 May 2023
Edited: MathWorks Support Team
on 4 May 2023
The ability to connect to a UDP multicast is not available in the Instrument Control Toolbox 2.2 (R14SP2).
As a workaround to connect to a UDP multicast, you can do the following:
1. Use a Java multicast socket to access it directly from MATLAB. For more information, see javadoc or tutorials for the "core java.net" classes from Sun, specifically "java.net.MulticastSocket ". This could be found at:
https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/net/MulticastSocket.html
Information on using Java with MATLAB in the 'External Interfaces' section of the MATLAB documentation can be accessed by typing the following command at the MATLAB command prompt:
web([docroot,'/techdoc/apiref/ch00intr.html'])
2. Write your own functions in C that use standard sockets and have a MEX wrapper call those functions. You can find more information on MEX-files at:
http://www.mathworks.com/support/tech-notes/1600/1605.html
If you are using MATLAB R2016b or newer, you can take a look at this example:
https://www.mathworks.com/matlabcentral/fileexchange/59156-udp-broadcasting-from-matlab
This achieves the goal of multiple devices on the same subnet, whose IP addresses are not known at the time of development of the MATLAB program, to receive messages from the MATLAB program.
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Vinod
on 19 Oct 2016
Edited: MathWorks Support Team
on 27 Apr 2023
If you are using MATLAB R2016b or newer, take a look at this example: https://www.mathworks.com/matlabcentral/fileexchange/59156-udp-broadcasting-from-matlab
Technically it is UDP broadcast, but it achieves the need of multiple devices on the same subnet, whose IP addresses are not known at the time of development of the MATLAB program, to receive messages from the MATLAB program.
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