西門子 200Plc 通過 PPI 協議與組態王通訊失敗，為何？

請檢查如下設置是否正確：

1）用戶編程電纜的撥碼設置：在編程電纜的撥碼中，第 5 個端子是設置通訊協議的：撥碼設置為 0，表示 PPI/Freeport ；撥碼設置為 1，表示 PPI(master)；用戶使用 PPI 協議和組態王通訊時，撥碼選擇 PPI/Freeport 對應撥碼值即可；

2）PPI 通訊傳輸的是 11 位的數據，也就建議客戶撥碼選擇 8 數據位 1 停止位偶校驗（撥碼默認為 11 位），并且 PLC 的波特率和 PPI、組態王要一致；

3）要求編程軟件必須是離線時啟動運行組態王。

福州卓凱電子科技有限公司聯系人：小林     
24小時咨詢熱線：17705012279

電話：0591-22983857

聯系QQ：879520885

傳真：0591-22989937

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