程序中的调用是 dwOldValue := TEST_AND_SET(dw); , 其中变量 dwOldValue [...] 任务中的变量。 FUNCTION ExclusiveStringWrite

Pointer to write value [...] SettgSetWStringValue [...] SettgSetWStringValue

_IEC_RESULT Write a string value [...] Pointer to write value [...] SettgSetStringValue

DataItemList.GetPendingWriteVars (METH) ¶ METHOD GetPendingWrite [...] will issue write

IXYChartGenericVariable.SetValueREAL (METH) ¶ METHOD SetValueREAL Write REAL value In

GenericVariable2.SetValueDINT (METH) ¶ METHOD SetValueDINT Write DINT value In

VisuFbXYChartGenericVariable.SetValueDINT (METH) ¶ METHOD SetValueDINT Write DINT value In

VisuFbXYChartGenericVariable.SetValueREAL (METH) ¶ METHOD SetValueREAL Write REAL value In

TrackingMode ( value ) ¶ Bases: Enum [...] ResetBehaviour ( value ) ¶ Bases: Enum [...] DeviceObject. ConnectorRole ( value

, Read ， 和 Write 。 ValueSet ：设置所使用的值 Read 和/或 Write 功能