S7 300 MPI 電纜方式是否支持通過 GPRS 和組態(tài)王通訊？
不支持。
組態(tài)王的 GPRS 通訊方式要求必須創(chuàng)建虛擬串口并通過此串口進行數(shù)據(jù)通訊。而對于 MPI 協(xié)議，我們的 MPI 驅(qū)動是通過調(diào)用西門子 PLC 的動態(tài)連接庫（s7onlinx.dll等）實現(xiàn)和 PLC 進行通訊的,并不是直接通過串口實現(xiàn)數(shù)據(jù)通訊。
其他類似調(diào)用方法的驅(qū)動，同樣也不支持 GPRS 連接。
組態(tài)王和多臺西門子S7-300、400 PLC 通過 DP 協(xié)議通訊時，設(shè)備地址應(yīng)如何定義？
1）硬件連接：計算機中插入一塊CP5611（或CP5613)可實現(xiàn)將多個S7-300/400PLC連接在一條 DP 總線上。
2）DP 協(xié)議設(shè)置：所有 PLC 必須設(shè)置的 DP Slave 站， CP5611(或 CP5613)要求通過 Simatic net 設(shè)置的 DP * master 站；
3）組態(tài)王中設(shè)備地址定義：選擇 PLC/西門子/S7-200 系列(DP)/Profibus-DP ，設(shè)備地址固定為 1.1 (該地址與
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