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针对故障处理中对高速数据采样的需求,提出并讨论了利用S7—400PLC系统功能块ARSend结合WinCC系统的RawData归档数据链接来实现高速数据采集的原理和方法。
Aiming at the need of high-speed data sampling in fault processing, the principle and method of realizing high-speed data acquisition by using ARSend of S7-400 PLC system combined with RawData archiving data link of WinCC system are proposed and discussed.