摘要
近几年,工业控制系统用现场总线技术的发展极为迅速,将导致数字传输信号制逐步取代模拟电流信号制,使自控系统的体系结构产生根本变革。本文介绍了现场总线的定义、结构形式、标准、具体应用以及发展趋势。
In recent years, the technology of field bus for process control systems has been developed rapidly, resulting in the replacement of analog current signal system by digital transmission signal system and hence the architechture of automatic control system is changed essential- ly. The definition, structure, standard and practical applications as well as developing trend of the field bus are introduced in this paper.
出处
《自动化仪表》
CAS
北大核心
1991年第7期1-7,共7页
Process Automation Instrumentation
