摘要
现场总线(Fieldbus)是过程控制技术、自动化仪表工业技术和计算机网络技术(3C)三者结合的产物,是安装在工业过程现场仪表与控制室内的控制设备之间的一种串行数字通信链路。文章介绍了现场总线技术特点及5种典型的现场总线,并给出了基于 CAN 总线的系统设计原理框图和最小系统节点电原理图。
Field Bus is the integration result of Process Control Technology, Automatic Device Industrial Technology and Computer Network Technology (3C), and is the serial digital communication link installed between the devices in the industrial fields and the controlling equipment in the monitor center. This paper introduces 5 typical Field Buses as well as the characteristics of the field bus technology, and then gives out the schematic block diagram of the system design and the circuit schematic diagram of the minimum-system knots based on the CAN Bus.
出处
《测试技术学报》
1998年第3期340-345,共6页
Journal of Test and Measurement Technology
