Description: The source host computer and the PLC200 PPI communication program, after a pilot test speed, and that such means of communication do not need to write the communication process, the host computer is directly related to the storage location in the PLC, the PLC side
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PPI连续读VD0--VD20
..................\Form1.frm
..................\MSSCCPRJ.SCC
..................\工程1.vbp
..................\工程1.vbw