Sub DeviceNet_Read()\'d定义过程名“DeviceNet_Read()” Dim MacID As Integer \'定义整数变量“MacID”Dim Datachanged As Boolean \'定义布尔变量DatachangedDatachanged = False \'赋值For MacID = 1 To 63 \'这是循环语句的开始部分returnval=DNS_ReadDeviceIo(CardHandle,MacID,DNS_INPUT1,Buffer(ScanList(MacID- \'循环未完，过程未完。
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