现场总线是当今工控领域的一个热点,现场总线技术正推动工业现场控制进行着一次革命性的突破。该文简述了现场总线标准化的进程,分析了现场总线的技术特点,阐述了现场总线的体系结构及各层的主要功能。 Fieldbus is a hot spot in the field of industrial control today. Fieldbus technology is driving a revolutionary breakthrough in industrial field control. This paper briefly describes the process of fieldbus standardization, analyzes the technical characteristics of fieldbus, expounds the fieldbus architecture and the main functions of each layer.