PLANT CONTROL SYSTEM AND METHOD

专利名称：PLANT CONTROL SYSTEM AND METHOD发明人：HOSHINO, Takeo,SORAO, Kenji申请号：EP08835525.0申请日：20081003公开号：EP2196880B1公开日：20161130

摘要：A plant control system includes a process computer (1) managing a plant, a PLC(2) interposed between the process computer (1) and equipment (3) of the plant, and ageneral-purpose PC (7) executing arithmetic processing based on arithmetic datareceived from the PLC (2) and transmitting arithmetic result data thereof to the PLC (2).The functions are divided such that sequential control logic is executed by the PLC (2) andcomplicated arithmetic processing is executed by the general-purpose PC (7), and thearithmetic result data outputted from the general-purpose PC (7) always passes throughthe PLC (2) so that consistency of the arithmetic result data is checked in the PLC (2). Thismakes it possible to apply a general-purpose personal computer (general-purpose PC)to the plant control system so as to divide the functions between the programmablelogic controller (PLC) and the general-purpose PC and to compensate the reliability ofthe general-purpose PC in an industrial application, for example, in terms of punctuality.

申请人：NIPPON STEEL & SUMITOMO METAL CORP

地址：JP

国籍：JP

代理机构：Vossius & Partner Patentanwälte Rechtsanwälte mbB

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