May , 31 2024
1、Modbus protocol (1) Modbus packet type Modbus protocol is an application-layer message transmission protocol that can be transmitted on various media, and the transmission mode is divided into three types: ASCII, RTU (Remote Terminal Control System), and TCP. There are multiple versions of the Modbus protocol for serial ports, but the following three are the most common: Modbus-RTU: In thi...
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