MODBUS is a commonly used communication protocol in the field of industrial automation and is mainly used to transmit data in industrial control systems. MODBUS TCP is a variant of the MODBUS protocol. It is a transmission protocol based on the TCP/IP protocol and can be used to connect MODBUS devices on a remote network.
The MODBUS TCP protocol adopts a client-server model, where the client sends a request and the server returns a response. This model makes the MODBUS TCP protocol highly reliable and stable, and can support a large number of clients to connect to the server at the same time.
Different from the traditional Modbus protocol, the Modbus TCP protocol supports real-time data transmission and can realize real-time data collection and monitoring. In addition, this protocol can also achieve data compression and decompression, thereby reducing data transmission time and bandwidth consumption.
The Modbus TCP protocol also supports multiple data rates, including low-rate and high-rate modes. The low-speed mode is usually 19200 baud rate, while the high-speed mode can reach 115200 baud rate. This multi-rate support makes the Modbus TCP protocol suitable for different application scenarios.
Through the above content, you know that Modbus TCP protocol is a transmission protocol based on TCP/IP protocol, which is mainly used to connect MODBUS devices in the field of industrial automation. It adopts a client-server model, supports real-time data transmission and multiple data rates, and has high reliability and stability. Therefore, it is widely used in various industrial automation control systems.
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