ITrendStorageAccessReadOperator.IsVariableToRead (METH)¶

METHOD IsVariableToRead : BOOL

Checks, whether the value of a given has to be read from TblTrendData.

InOut:

Scope	Name	Type	Comment
Return	IsVariableToRead	BOOL	TRUE if the variable has to be read, otherwise FALSE
Input	iWhichVariable	DINT	A 0-based index of the variable within all variables
Output	idColumn	CAA.IDENT	Returns the column identifer of the corresponding column in TblTrendData used to retrieve the value