USS协议实现PLC和多传动调速系统的通讯

Communication Between PLC and Multiple Driving and Timing System with USS Protocol

介绍西门子公司S7-200PLC和直流调速装置6RA70及变频器MICROMASTER420之间构成的调速控制系统,采用基于RS485接口的USS协议,实现PLC与多台直流调速器及多台变频器的串行通讯。USS接口为以上装置的标准配置,因此降低了网络系统配置的成本。

This paper recommends the control system composed of SIEMENS PLC S7 - 200 and DC speed regulator of 6RA70 and frequency converter MICROMASTER420 based on USS protocol of RS485 interface so that the serial communication of PLC and different DC speed regulators and frequency converters is realized. The USS interface is the standard scheme of above system so that the cost of the network system is reduced.