ITrendStorageAccessReadOperator2 (ITF) ¶ INTERFACE ITrendStorageAccessReadOperator2 EXTENDS ITrendStorageAccessReadOperator This interface is an extension of ITrendStorageAccessReadOperator, that provide functionality for the method Read of function block TrendFbTrendStorageAccess. Is contains a set of callback methods. Methods: CurveFillingAlphaRead CurveFillingColorRead CurveFillingTypeRead CurveTypeRead GradientAngleRead GradientBrightnessRead GradientCenterXRead GradientCenterYRead GradientColor1Read GradientColor2Read GradientColorBrightnessRead GradientTranspColor1Read GradientTranspColor2Read GradientTypeRead GradientUseTwoColorsRead ActivateMaxWarningRead , inherited from ITrendStorageAccessReadOperator ActivateMinWarningRead , inherited from ITrendStorageAccessReadOperator AfterReadingData , inherited from ITrendStorageAccessReadOperator AfterReadingVariableConfiguration , inherited from ITrendStorageAccessReadOperator AfterReadingVariableValuesOfRow , inherited from ITrendStorageAccessReadOperator BeforeReadingData , inherited from ITrendStorageAccessReadOperator BeforeReadingVariableConfiguration , inherited from ITrendStorageAccessReadOperator BeforeReadingVariableValuesOfRow , inherited from ITrendStorageAccessReadOperator ColIDRead , inherited from ITrendStorageAccessReadOperator DescriptionTextIDRead , inherited from ITrendStorageAccessReadOperator DisplayVariableNameRead , inherited from ITrendStorageAccessReadOperator DoContinueReading , inherited from ITrendStorageAccessReadOperator FinalizeReading , inherited from ITrendStorageAccessReadOperator FirstDataRowOfNewConfigurationReached , inherited from ITrendStorageAccessReadOperator GraphColorRead , inherited from ITrendStorageAccessReadOperator GraphTypeRead , inherited from ITrendStorageAccessReadOperator InitializeReading , inherited from ITrendStorageAccessReadOperator IsVariableToRead , inherited from ITrendStorageAccessReadOperator LineStyleRead , inherited from ITrendStorageAccessReadOperator LineWidthRead , inherited from ITrendStorageAccessReadOperator MaxWarningColorRead , inherited from ITrendStorageAccessReadOperator MaxWarningThresholdRead , inherited from ITrendStorageAccessReadOperator MinWarningColorRead , inherited from ITrendStorageAccessReadOperator MinWarningThresholdRead , inherited from ITrendStorageAccessReadOperator ProcessPacketFlags , inherited from ITrendStorageAccessReadOperator ProcessTimestamp , inherited from ITrendStorageAccessReadOperator ProcessValue , inherited from ITrendStorageAccessReadOperator VariableNameRead , inherited from ITrendStorageAccessReadOperator VariableTypeRead , inherited from ITrendStorageAccessReadOperator YAxisDescriptionRead , inherited from ITrendStorageAccessReadOperator Structure: CurveFillingAlphaRead (Method) CurveFillingColorRead (Method) CurveFillingTypeRead (Method) CurveTypeRead (Method) GradientAngleRead (Method) GradientBrightnessRead (Method) GradientCenterXRead (Method) GradientCenterYRead (Method) GradientColor1Read (Method) GradientColor2Read (Method) GradientColorBrightnessRead (Method) GradientTranspColor1Read (Method) GradientTranspColor2Read (Method) GradientTypeRead (Method) GradientUseTwoColorsRead (Method)

ITrendStorageAccessReadOperator2.CurveFillingAlphaRead (METH) ¶ METHOD CurveFillingAlphaRead This method returns the curve alpha color of the graph (transparency) InOut: Scope Name Type Comment Input iWhichVariable INT The 0 based index of the variable within all variables iValue INT The alpha color of the graph

ITrendRootPageManager.Reset (METH) ¶ METHOD Reset This method resets the ITrendRootPageManager instance, i.e. DetermineRootPages will determine the root pages again and will not use any cached values

ITrendRootPageManager2 (ITF) ¶ INTERFACE ITrendRootPageManager2 EXTENDS ITrendRootPageManager Extension of interface ITrendRootPageManager. Methods: DetermineRootPagesTimeout DetermineRootPages , inherited from ITrendRootPageManager GetRootPage , inherited from ITrendRootPageManager IsReady , inherited from ITrendRootPageManager Reset , inherited from ITrendRootPageManager Structure: DetermineRootPagesTimeout (Method)

ITrendRootPageManager2.DetermineRootPagesTimeout (METH) ¶ METHOD DetermineRootPagesTimeout : STO.ERROR This method has to be called once to determine the rootpages of the database InOut: Scope Name Type Comment Return DetermineRootPagesTimeout STO.ERROR Input itfTraceMgrPacket ITraceMgrPacket An instance of ITraceMgrPacket describing the packet that is currently running in the runtime system tMaxWaitTime TIME Roughly the maximal interval that this method must block while waiting for determination of the root pages.

ITrendStorageAccessReadOperator (ITF) ¶ INTERFACE ITrendStorageAccessReadOperator EXTENDS __SYSTEM.IQueryInterface This interface is implemented by function blocks, that provide functionality for the method Read of function block TrendFbTrendStorageAccess. Is contains a set of callback methods. Methods: AfterReadingData AfterReadingVariableValuesOfRow BeforeReadingData BeforeReadingVariableValuesOfRow DoContinueReading FinalizeReading FirstDataRowOfNewConfigurationReached InitializeReading IsVariableToRead ProcessPacketFlags ProcessTimestamp ProcessValue ActivateMaxWarningRead ActivateMinWarningRead AfterReadingVariableConfiguration BeforeReadingVariableConfiguration ColIDRead DescriptionTextIDRead DisplayVariableNameRead GraphColorRead GraphTypeRead LineStyleRead LineWidthRead MaxWarningColorRead MaxWarningThresholdRead MinWarningColorRead MinWarningThresholdRead VariableNameRead VariableTypeRead YAxisDescriptionRead Structure: AfterReadingData (Method) AfterReadingVariableValuesOfRow (Method) BeforeReadingData (Method) BeforeReadingVariableValuesOfRow (Method) DoContinueReading (Method) FinalizeReading (Method) FirstDataRowOfNewConfigurationReached (Method) InitializeReading (Method) IsVariableToRead (Method) ProcessPacketFlags (Method) ProcessTimestamp (Method) ProcessValue (Method) prvTblTrendConfigurationGetConfig ActivateMaxWarningRead (Method) ActivateMinWarningRead (Method) AfterReadingVariableConfiguration (Method) BeforeReadingVariableConfiguration (Method) ColIDRead (Method) DescriptionTextIDRead (Method) DisplayVariableNameRead (Method) GraphColorRead (Method) GraphTypeRead (Method) LineStyleRead (Method) LineWidthRead (Method) MaxWarningColorRead (Method) MaxWarningThresholdRead (Method) MinWarningColorRead (Method) MinWarningThresholdRead (Method) VariableNameRead (Method) VariableTypeRead (Method) prvTblTrendConfigurationGetDiagramConfig YAxisDescriptionRead (Method)

ITrendStorageAccessReadOperator.AfterReadingData (METH) ¶ METHOD AfterReadingData Notification, that reading the data (i.e. the values) has been completed. InOut: Scope Name Type Comment Input iCountVariables INT The number of variables

ITrendStorageAccessReadOperator.AfterReadingVariableValuesOfRow (METH) ¶ METHOD AfterReadingVariableValuesOfRow Notification, that reading the data (i.e. the values) of the current has been completed.

ITrendStorageAccessReadOperator.BeforeReadingData (METH) ¶ METHOD BeforeReadingData Notification, that reading the data (i.e. the values) will start.

ITrendRecording2.Initialize2 (METH) ¶ METHOD Initialize2 InOut: Scope Name Type Comment Input udiRecordingTimespan UDINT The configured timespan between two recordings udiCountCyclesToStore UDINT Contains the number of cycles, that have to be stored in memory before writing the data to the trend storage udiBufferEntries UDINT The number of samples, that the trace in the runtime system holds udiMaxRecordCount UDINT If this parameter has a value != 0 it indicates the maximum number of records, that will be stored in the trend storage. itfTrendRootPageManager ITrendRootPageManager An already initialized instance of ITrendRootPageManager, that is able to provide the root pages for tables and indexes eFileLimit ETrendFileLimit This parameter contains the kind of limit to check liStorageSize LINT This parameter contains the maximum storage size