【摘要】 现场总线综合了数字通信技术、计算机技术、自动控制技术、网络技术和智能仪表技术等多种技术手段,构成一种全分散、全数字化、智能、双向、互连、多变量、多接点的通信与控制系统,成为自动控制发展的趋势。用SPC3开发出可与传感器或其他电气或驱动设备相连的PROFIBUS-DP从站通信接口,使国产设备或仪表能连接到PROFIBUS现场总线的网络中,文中利用开发包开发出了开关量输入输出从站、模拟量输入从站、模拟量输出从站3种智能从站单元。更多还原

【Abstract】 Many technologies such as digital communication technology,computer technology,automation and control technology,network technology and intelligent instruments technology are integrated into the Fieldbus.Fieldbus control system contitutes the distribute,digital,intelligent,two-direction,interlink,multi-parameters,multi-point communication and control system,and becomes the trend of the development of automation and control.In order to connect homemade devices and instruments to PROFIBUS,the PROFIBUS-DP communication interfaces which could connect transducer and other drive equipments were developed using SPC3.Three kinds of intelligent slaves unit such as digital input and output slave,analog signals input slave,analog signals output slave using SPC3 were designed.更多还原