采用西门子S7-200实现iFIX上位机同英格索兰氮气透平机的数据通讯，通过对数据包通讯状态的监控，判断氮透是否正常运行，跳过处于非工作状态的氮透数据包请求，解决了因氮透停止运行导致的数据读取异常现象，提高了通讯过程容错性。%Siemens S7-200 is adopted to realize data communication of iFIX upper computer and Ingersoll Rand nitrogen turbine. By monitoring the state of the data packet communication it can determine whether the nitrogen turbine is in normal operation or not. The packet request of the nitrogen turbine in the non-working state can be ignored. It solves data read abnormal phenomenon due to the nitrogen turbine’s outage and improves communication process fault tolerance.
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