Communicate Signals Between Two Simulations on the Same Computer?

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Joseph Krese 2020-12-23

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评论： Mark McBroom 2020-12-29

I have a simulation model that uses many different refernce models and external data dictionaries, with local variables passed to the various models using busses. I want to duplicate this model and run it simultaneously because I have a use case where we will have two of these systems running side by side in the real world, communicating with each other through a modbus link.

I've seen information on OPC and UDP/TCP/IP blocks, but I can only find information about running them on a separate computer. I would like to run both of these simulations in separate matlab instances on a single computer. Does anyone have any experience with running two simulations simultaneously on the same host, communicating through one of these blocks? (most likely will be looking at OPC)

Thanks!

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Answer 1

Mark McBroom 2020-12-25

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The UDP/TCP blocks can be used to share data between two different Simulink models running in different MATLAB instances on the same computer.

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Joseph Krese 2020-12-28

Thanks,

I did see that you could use those blocks, but we do not have those toolboxes. We do have the OPC toolbox, which is why I wasn interested in that one.

Mark McBroom 2020-12-29

Hi Joseph,

I have not used the OPC toolbox, but a quick look at the help documenation leads me to believe that these blocks will also support your use case as long as you configure both models/MATLAB instances to connect to the same OPC server.

Install a Simulation Server for OPC Toolbox Examples - MATLAB & Simulink Example (mathworks.com)

Read and Write to an OPC Data Access Server from Simulink - MATLAB & Simulink Example (mathworks.com)

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