Description
DCS它可以控制和监视工艺全过程，对自身进行诊断、维护和组态。但是，由于自身的致命弱点，其I/O信号采用传统的模拟量信号，因此，它无法在DCS工程师站上对现场仪表（含变送器、执行器等）进行远方诊断、维护和组态。FCS采用全数字化技术，数字智能现场装置发送多变量信息，而不仅仅是单变量信息，并且还具备检测信息差错的功能。FCS采用的是双向数字通信现场总线信号制。因此，它可以对现场装置（含变送器、执行机构等）进行远方诊断、维护和组态。FCS的这点优越性是DCS无法比拟的。
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