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介绍一类计算机过程控制系统的改造方案——以计算机网络系统替代点对点系统 ,以及能使新老系统切换运行的关键技术。目的在于最大限度地减小由设备改造而引起的损失。所涉及和采用的方法 ,对其他工业控制系统的改造也具有参考价值。
This article introduces a kind of reform plan of a kind of computer process control system - substitutes the computer network system for the point to point system, as well as the key technology which can make the old system and the old system switch over. The goal is to minimize the damage caused by retrofitting equipment. The methods involved and adopted also have reference value for the transformation of other industrial control systems.