简述profibus总线标准发展史,组成结构以及总线访问控制方式,凭借开放性、集成化、经济性等特点,profibus总线标准在污水处理行业中应用越来越广泛。为了充分发挥其优势,与污水处理行业的自控系统的应用好结合起来,应有针对性在系统组态、通信配置、信息传输等方面加强应用研究。 Profibus briefly describes the history of the bus standard, the composition of the structure and the bus access control, with open, integrated, economical and other characteristics, profibus bus standard in the sewage treatment industry is more and more widely used. In order to give full play to its advantages, combined with the application of the automatic control system of the sewage treatment industry should be targeted to strengthen the applied research in the aspects of system configuration, communication configuration and information transmission.