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Simulink with Modbus TCP in the Realtime Machine

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I saw that there is no Modbus block in Simlunk, and checked the blocks of the Simulink Real Time and could not find it either. How we can create a model that uses modbus to comunicate to the controller if there is no Modbus compatibility in Simulink? The instrument toolbox only can use MATLAB and not Simulink, which I did not know when I bought it.....

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Accepted Answer

Diego Kuratli
Diego Kuratli on 7 Jun 2020
Modbut TCP support for Simulink Real-Time requires a dedicated I/O module from Speedgoat, see:
The regular Ethernet ports on the target machine can be used for UDP/IP, TCP/IP, PTP, and EtherCAT Master only.

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More Answers (2)

Sai Sri Pathuri
Sai Sri Pathuri on 29 May 2020
Edited: Sai Sri Pathuri on 29 May 2020
As a workaround, you may use a MATLAB Function block and use modbus object inside it.

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Marlon Trujillo
Marlon Trujillo on 1 Jun 2020
Matlab functions should not be use it. We need to use interpreted ones. But this is not the answer for the real time topic.

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Fernando Liozzi
Fernando Liozzi on 7 Jul 2020
Hi, I need Simulink Modbus blocks for code generator,that is, generate code to implement modbus in microcontrollers, using simulink code generation., is this possible?
Thanks.

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Marlon Trujillo
Marlon Trujillo on 18 Aug 2020
The thing is that Modbus directly is not available in Simulink for code generation... So, that sounds like is not possible.
There is a workaround I found for a "live simulation in simulink" using interpreted functions and calling them from Simulink... But you'll need to simulate in simulink, no to export code...
Fernando Liozzi
Fernando Liozzi on 10 Sep 2020
Thank you very much for answering. I have already managed to port freemodbus 1.6 to all my microcontrollers, PIC18, dsPICs, Cortex M3 / M4.
Regards.
Fernando.

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