化工装置多控制系统间时钟同步设计与应用

Design and Use of Clock Synchronization in Several Control Systems of Chemical Plant

摘要:

针对化工装置有DCS,SIS,CCS等多套控制系统的情况,采用GPS时间服务器,设计了一个通过SNTP协议完成多控制系统时钟同步的技术方案；介绍了GPS时间服务器的设置,DCS时间组的设置,CCS系统时钟同步软件的设置以及SIS系统时钟同步的两种设置方案；实现了不同装置多控制系统之间的全局时钟同步；保障了工艺参数趋势记录,SOE记录,工艺人员操作记录时间基准的一致性和准确性；有利于生产事故原因的查找与分析。

Abstract:

Considering chemical plant with DCS, SIS, CCS and other several control systems, using GPS time server, a technique scheme adopting SNTP protocol is designed to synchronize the clocks of the different control systems. Introducing the setting of GPS time server, the setting of DCS time group, the setting of clock synchronization software of CCS system and the two schemes of SIS system clock synchronization. The clock synchronization of the several control systems is realized. The time benchmark of the process parameter trend record, SOE record, operating record are consistent and accurate.It is helpful to find and analyze the cause of a production accident.