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叙述了西门子S7—400H热冗余PLC在石油钻机变频传动系统的应用,给出了一种典型应用配置,并对实际的应用情况进行了分析评价。
Describes the Siemens S7-400H hot redundant PLC in the oil rig frequency conversion drive system, gives a typical application configuration, and the actual application of the situation were analyzed and evaluated.