一、引言故障的排除是系统安全可靠运行的重要保证。虽然在工业生产中重要的工艺参数都设有常规仪表或计算机数据采集系统的越限报警监视,但系统的复杂性使得人们不能迅速得知引起参数超常的根本原因。工作人员分析和查找故障过程的延迟,不仅造成生产上极大的损失,某些场合还有可能引起巨大的危险事故。因此,如何利用计算机在设 I. Introduction The troubleshooting of the system is an important guarantee for the safe and reliable operation of the system. Although important process parameters in industrial production are monitored by over-limit alarms from conventional instrumentation or computer data acquisition systems, the complexity of the system renders one unable to quickly ascertain the root cause of abnormal parameters. The delay in staff analysis and troubleshooting can not only cause great losses in production, but in some cases it can also cause huge dangerous accidents. Therefore, how to use the computer in the design