Modbus the Protocol:

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  • Modbus TCP uses the Transmission Control Protocol (TCP) to manage packet transmission.
  • Modbus TCP, or Modbus TCP/IP, is an internet communication protocol that allows devices to exchange data over an Ethernet network.
  • Modbus TCP is essentially Modbus RTU, however Modbus TCP is used over ethernet.
  • This means that a Modbus TCP device installed in Europe can be addressed over the Internet from the USA from anywhere else in the world.

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