SY-0399095E SY-0303451D+SY-0303460E FOXBORO

DCS(Distributed Contorl System),distributed control system,also known as distributed control system,is a computer control system relative to the centralized control system.It is developed and evolved on the basis of the centralized control system..

FCS(FieldBus Contorl System),field bus control system.It uses fieldbus,an open and interoperable network,to interconnect various controllers and instruments and instrumentation equipment in the field to form a fieldbus control system.At the same time,the control functions are completely delegated to the field,which reduces installation costs and maintenance costs.

DCS（Distributed Contorl System）,集散控制系统，又称分布式控制系统，是相对于集中式控制系统而言的一种计算机控制系统，它是在集中式控制系统的基础上发展、演变而来的。

FCS（FieldBus Contorl Syestem），现场总线控制系统。它是用现场总线这一开放的、具有互操作性的网络将现场各个控制器和仪表及仪表设备互联，构成现场总线控制系统，同时控制功能彻底下放到现场，降低了安装成本和维修费用。