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  1. modbus.org
    https://modbus.org

    Modbus Organization

    A community for the Modbus communications protocol - data communication between devices over TCP/IP and over serial line – open and royalty-free since 1979. Visit Modbus.org to …

  2. modbus.org
    https://modbus.org › viewcompany.php

    Modbus - Supplier information

    MODBUS Protocol is a messaging structure developed by Modicon in 1979, used to establish client-server communication between intelligent devices.

  3. modbus.org
    https://modbus.org › viewdevice.php

    Modbus - Device information

    MODBUS Protocol is a messaging structure developed by Modicon in 1979, used to establish client-server communication between intelligent devices.