VB6.0 OPC PPI S7-200通讯
于 2022-02-11 发布
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资源描述VB6.0 OPC PPI S7-200通讯 Private MyOPCServer As OPCServer " OPCServer Object Private MyGroups As OPCGroups " OPCGroups Collection Object Private WithEvents MyGroup As OPCGroup " OPCGroup Object Private MyItems As OPCItems " OPCItems Collection Object Private MyItemServerHandles() As Long " Server Handles for Items Dim MyTID As Long " Transaction ID for asynchronous calls
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