Siemens PLC dedicated USS protocol - Solutions - Huaqiang Electronic Network

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The USS protocol (Universal Serial Interface Protocol) is a general-purpose communication protocol for all transmission products of SIEMENS. It is a protocol for data communication based on serial bus. The USS protocol is a master-slave protocol that specifies that there can be one master station and up to 30 slave stations on the USS bus; each slave station on the bus has a station address (set in the slave parameters), The primary station relies on it to identify each secondary station; each secondary station responds only to the message sent by the primary station and returns the message, and the slave station cannot directly communicate data. In addition, there is a broadcast communication method, the primary station can send messages to all the slave stations at the same time, and the slave station can not send back the message after receiving the channel message and responding accordingly.
Advantages of using the USS protocol
1. Low requirements on hardware devices, reducing wiring between devices,
2. Change control without reconnecting
3. The parameters of the transmission can be set or changed through the serial interface.
4. Real-time monitoring of the drive system.