摘要
当前工控领域石化项目如乙烯、炼油日益趋向大型化、一体化和智能化。一个大型石化项目往往集成多套独立系统如DCs、sIs、CCs等,同时要求所有系统使用同一套网络时钟同步系统。本文提供了几种全厂网络时间同步方案,并分析了每个方案的优缺点和适用场合。
The petrochemical projects in the industrial control area run to large, integrative andintelligentized.A large petrochemical project always need to be integrated with many systemslike DCS, SIS, CCS and so on .The network of these systems must be independent,while they should use the same network time synchronizer to achieve time synchronization.This articlepropose several implements of the network time synchronization in the whole plant.
