DUPLEXING CONTROL METHOD AND DUPLEXING CONTROL SYSTEM
申请公布号:JP2010198274(A)
申请号:JP20090041878
申请日期:2009.02.25
申请公布日期:2010.09.09
发明人:NAKAJIMA HIROAKI;KISA AKIFUMI
分类号:G06F11/00;G06F11/20
主分类号:G06F11/00
摘要:<P>PROBLEM TO BE SOLVED: To shorten one side operation time of a duplexed CPU module in updating an input/output management program for driving an IO co-processor for managing the input/output information of field equipment. Ž<P>SOLUTION: A terminal 14 stops IO firmware 62 for driving an IO co-processor 5B in a Standby mode to update the IO firmware 62, and after switching the system, stops IO firmware 60 for driving an IO co-processor 5A in the Standby mode to update the IO firmware 60. Thus, it is possible to update the IO firmware 60 and 62 by online, and it is not necessary to stop or remove CPU modules 1A and 1B. Therefore, it is not necessary to perform any APDC processing to copy IO image data or the like, and to shorten the time of such a risky one side operation state that the CPU modules 1A and 1B are independently operated without being duplexed. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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