Network90分布式过程控制系统是 Elsag- Bailey集团八十年推出的产品 ,在我国许多企业生产过程自动控制中有着广泛的应用 .但受产品生产年代的制约 ,N90上运行的许多管理软件运行在 DOS环境下 ,已不能适应今天企业发展的需要 .生产过程实时仿真系统将原 N90系统中的 MCS仿真软件移植到 Windows95/98环境下的网络工作站上 ,有效地解决了这一问题 .本文详细地阐述了生产过程实时仿真系统的功能及结构 Network90 Distributed Process Control System is Elsag-Bailey Group’s 80-year product launch, many of our enterprises in the production process has a wide range of automatic control applications.But by the production age constraints, N90 running on many of the management software running in DOS Environment, can no longer meet the needs of today’s business development.Production process real-time simulation system will be the original N90 system MCS simulation software ported to Windows95 / 98 environment network workstations, effectively solve this problem.This paper elaborates The function and structure of real-time simulation system of production process