GFD/DFD 1000554 EM 冗余设计

GE IC693CPU364-CJ
A-B 1756-OF8
SCHNEIDER 140NRP95400
A-B 1756-OF8
FOXBORO FBM241C
HONEYWELL 05701-A-0302
FIREYE EB700
EMERSON 1C31169G02
A-B 1756-OF8
A-B 1747-L532
FIREYE EB700
EMERSON KJ3204X1-BA1
ABB AINT-02C
KOLLMORGEN CR06561-MZ
KOLLMORGEN CR06561-MZ
AB 1756-M08SE/B

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Description

冗余设计和降级操作是必要的。冗余设计可采用热后备或冷后备方式。热后备方式操作时,冗余的后备系统也同时运行,两者输出的结果一致时,表示系统是正常运行的;一旦结果不一致,则发出警报信号,同时,根据自诊断的结果,切换到正常的系统去。冷后备方式操作时,

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