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中原大化集团公司尿素厂仪表系统按布置可分为控制室仪表和生产现场的就地仪表两大类。控制室仪表采用微计算机集散控制系统即ＤＣＳ ,其显著特点是具有顺序控制功能 ,它可实现各输入量之间的逻辑运算。尿素系统的联锁控制就是由顺序控制功能来完成的。下面是利用ＤＣＳ解决现
Zhongyuan Dahua Group Urea Plant Meter System can be divided into two categories: control room instrumentation and on-site instrumentation at the production site. Control room instrumentation using micro-computer distributed control system that DCS, its salient features is the order control function, which can achieve the logical operation between the input. Urea system interlock control is done by the order control function. The following is the use of DCS to solve the problem