Design of flexible assembly control systems based on Ethernet

The design of flexibly assembly control systems based on Ethernet is introduced in the paper. First, the whole scheme of the flexible assembly system is presented, then, the designs of the telegram structure and contents and processing functions are expatiated, the general mechanism is focused on for the communication handshake between the super-ordinate system and PLC system by the Ethernet. The design of the whole system is universal, reliable and flexible.