PC via RS485 how will information to the next bit machine? Want to see the process, the code is very don't understand

CodePudding user response:

Under the agreement on both sides, as a serial data parsing

CodePudding user response:

PC via a serial port communication can information is passed to the next bit machine, RS485 main use is question and answer form of communication, the host asked, response from the machine, you can see the modbus protocol, may have some help to you,