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控制系统进一步趋向于分散和开放,出现分布式控制系统。数据采集与监控系统便是一类用于地理域大、无人值守的工业环境,以进行远程监控的分布式控制系统。这类系统主要由位于操作室或调度室的中心站计算机和位于各现场监控对象附近的远程终端单元(Remote Terminal Unit,简称RTU)组成,计算机与各RTU之间通过数字通信网络连接,对于可编程远程终端的设计进行相关的概述。
The control system further tends to be decentralized and open with the emergence of distributed control systems. Data acquisition and monitoring systems are a type of distributed control system for remote monitoring in large, unattended industrial environments in geography. Such systems are mainly composed of a central station computer located in an operation room or a dispatch room and a remote terminal unit (RTU) located near each on-site monitoring object. The computer and the RTUs are connected through a digital communication network, Programming remote terminal design for a relevant overview.