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The application of field bus is one of the mainstreams in the development of industrial process control.It can be said that the development and application of FCS is a revolution in the field of automation.The low-cost field bus control system is constructed by using the field bus technology,which promotes the intelligentization of field instruments,the decentralization of control functions,and the openness of the control system,which is in line with the development trend of industrial control system technology.

现场总线的应用是工业过程控制发展的主流之一。可以说FCS的发展应用是自动化领域一场革命。采用现场总线技术构造低成本现场总线控制系统，促进现场仪表的智能化、控制功能分散化、控制系统开放化，符合工业控制系统技术发展趋势。