• Formal
  • Modbus is an open and widely used de facto standard applied in a large number of application areas, such as the industrial sector, buildings, traffic, and energy.
  • Practical
  • The Modbus protocol is used to establish masterslave/client-server communication between intelligent devices. Using Modbus, a master (e.g. automation station) and several slaves (e.g. chillers) can be interconnected. Data transmission takes place through one of the three operating modes: Modbus ASCII, RTU, or TCP.
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