Extra Credit

Modbus

Systems and hardware Embedded and IoT
Official docs Learn Modbus on your Mac

Official docs outline

6 sections
  1. Modbus specifications

    Official Modbus application protocol, serial line and TCP specifications with function codes and register types.

  2. Modbus Organization

    Overview of the protocol and its coils, discrete inputs, holding and input registers.

  3. libmodbus home

    C library for Modbus RTU and TCP master and slave implementations.

  4. libmodbus reference

    API functions such as modbus_new_tcp, modbus_read_registers and modbus_write_register.

  5. pymodbus

    Python Modbus client and server library with sync and async APIs.

  6. Modbus in Zephyr

    Zephyr RTU and TCP Modbus client and server support.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

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