上位機的庫 S7netplus
https://www.mesta-automation.com/siemens-s7-plc-c-s7-net-plc-driver/
https://www.cnblogs.com/BBBLANK/p/7193213.html
安裝模擬器PLC
https://www.cnblogs.com/xiketang/p/13156452.html
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