摘要
对FF、PROFIBUS、LONWORKS、CAN和HART五种典型的现场总线介绍,从它们的通信协议结构、通信介质访问方式以及应用范围等方面进行比较,将有助于用户选择适合自己需要的现场总线,来满足工业控制中的要求.
This paper introduced the comparison of five typical fieldbuses about FF, PROFIBUS, LONWORKS, CAN and HART form communication protocol, the communication media access mode and application range. It would help the user select proper fieldbuses to meet the requirement of industrial control.
