(一)回顾几年以前,许多文献都已谈到微计算机的迅速发展将促使过程控制进入一个新阶段。这种局面在国际上已经成为现实,微型计算机、单板机、微处理器被广泛用于各种工业控制系统和仪表中。在国内,微型计算机应用也已起步,近年来,已开始出现一种“热潮”。然而,计算机控制在我国炼油企业中曾经走过弯路,有过一点“历史教训”。“弯路”的教训 (A) Review A few years ago, many documents have talked about the rapid development of microcomputer will bring process control to a new stage. This situation has become a reality in the world. Microcomputers, single-board computers and microprocessors are widely used in various industrial control systems and instruments. In China, the application of microcomputers has also started. In recent years, a “craze” has begun to emerge. However, computer control has gone through detours in China’s oil refineries and there has been a little “lesson from history.” Lessons from “detours.”