以微处理机技术为核心的分散控制系统应用已逐步增多。与模拟系统比较,它的性能究竟如何?它的可靠性、可维修性怎样?操作是否方便?它的投资和经济收效又如何呢?这些都是自控设计人员经常产生的疑问。本文拟就上述问题谈谈作者的看法。为此,还要对它的结构特点作一简述。这类系统的名称国外本来就不统一,本文采用美国Robert J·Bibbero著“Microprocessors in Instruments and Control”一书中所用的名称,即分布型微处理机控制系统(Distributed Microprocessor Control Systems)简称DMCS。这一名称较为确切。 (一)DMCS的结构特征国外的DMCS虽然型号很多,但有一些基本的共同特点:微处理机采用16位字长系统,分散控制,数据高速通迅,人机联系用键盘操作,数字显示或CRT屏幕显示等 The application of decentralized control system based on microprocessor technology has been gradually increased. Compared with the analog system, what is its performance? Its reliability, maintainability of how? Is it easy to operate? Its investment and economic efficiency? These are frequently asked by self-control designers. This article intends to talk about the author’s view on the above issues. To this end, but also make a brief description of its structural features. The names of such systems are not uniform abroad. In this paper, we use the name “Microprocessors in Instruments and Control” by Robert J. Bibbero in the United States, namely Distributed Microprocessor Control Systems (DMCS) for short. This name is more exact. (A) the structural characteristics of the DMCS Foreign DMCS Although many models, but there are some basic common features: Microprocessor 16-bit word length system, decentralized control, high-speed data communication, human-computer contact with the keyboard operation, digital display or CRT screen display and so on