![]() ![]() While Modbus defines how the data is structured for transmission, RTU and TCP/IP wrap the structured data for specific methods of transmission. Essentially, these are simply two different ways of transmitting data. ![]() ![]() There are two common types of Modbus – RTU and TCP/IP. Modbus is a popular fieldbus that allows a lot of data to be transferred, and supports two-way communication for remote operation (such as device programming and set-up). Fieldbus is a type of communication protocol that allows networking industrial devices, such as pressure transducers and level sensors to a PLC. The specific way data is packaged and transmitted is known as a communication protocol.
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