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What is the Ethernet communication protocol of touch screen?
Touch screen Ethernet communication is S7Comm protocol. According to relevant public information, the communication between plc and touch screen Ethernet is S7Comm protocol, which is based on the Ethernet structure of OSI model. With the help of WireShark, the 1-4 layer will be completed by the computer itself, and the application data transmission protocol is between TCP and COTP protocol. This is a transport service protocol, which is mainly used to build a bridge between COTP and TCP.
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