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How can you communicate data between the S7-200 and the S7-300 via PROFIBUS DP?
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日期:2024-05-23
Note In the case of data communication the data sent by the master is stored in the receive area of the slave (variables memory). The user program of the S7-200 CPU must "save" this data to another data area, because otherwise it will be overwritten at th...看更多