TrendStorageReaderValueConverter.ConvertToString (METH) ¶ METHOD ConvertToString : STRING Converts a value read from the trend storage into a suitable string representation. InOut: Scope Name Type Comment Return ConvertToString STRING Input iWhichVariable INT A 0-based index of the variable within all variables, i.e. must be less the parameter iCountVariables of method SetVariableConfiguration liValue LINT The value, that was read from TblTrendData xValueNULL BOOL Indicates, whether NULL is stored in the trend storage Output eError ETrendStorageReaderErrors Returns a ETrendStorageReaderErrors value indicating, where the processing was completed successfully or not. ETrendStorageReaderErrors.NoError: Completed successfully ETrendStorageReaderErrors.InvalidCall: ConvertToString was called without calling method SetVariableConfiguration before ETrendStorageReaderErrors.WrongParameter: The value of the parameter iWhichVariable is invalid

TrendStorageReaderValueConverter.SetVariableConfiguration (METH) ¶ METHOD SetVariableConfiguration This method has to be called, before any other method of this function block can be used. It is used to set the variable configuration describing the variables. InOut: Scope Name Type Comment Input paTrendStorageVariableDescription POINTER TO ARRAY [0..0] OF TrendStorageVariableDescription Points to an array of TrendStorageVariableDescription Variables, where the configuration of the variables has been stored. This array contains the description of the variables, whose data will be read iCountVariables INT The effective size of the array above, i.e. the number of variables

TrendFctGetRecordSizeFactor (FUN) ¶ FUNCTION TrendFctGetRecordSizeFactor : REAL This function returns the factor for changing the record size used to control the size of the DB: the number of records to be deleted at each reorganisation is calculated on the basis of an empirically calculated size, this size can be changed by this factor. InOut: Scope Name Type Comment Return TrendFctGetRecordSizeFactor REAL Input sPacketName STRING A string containing the name of the trace mgr packet

TrendFctResetDBReOrderingData (FUN) ¶ FUNCTION TrendFctResetDBReOrderingData This function resets data regarding DB reorganization InOut: Scope Name Type Comment Input sPacketName STRING A string containing the name of the trace mgr packet

TrendFctSetDBPercLimit (FUN) ¶ FUNCTION TrendFctSetDBPercLimit This function sets the percentage used to check the DB size: the DB size is reduced by this percentage if the set limit is exceeded. InOut: Scope Name Type Comment Input sPacketName STRING A string containing the name of the trace mgr packet iPerc INT Percencate in decimal to use, e.g. 0.5% => 5

TrendFctSetDBReOrderingForceFailure (FUN) ¶ FUNCTION TrendFctSetDBReOrderingForceFailure : INT This function returns data regarding DB reorganization force failure, use only for test InOut: Scope Name Type Comment Return TrendFctSetDBReOrderingForceFailure INT Input sPacketName STRING A string containing the name of the trace mgr packet iValue INT

TrendFctSetRecordSizeFactor (FUN) ¶ FUNCTION TrendFctSetRecordSizeFactor This function sets the factor for changing the record size used to control the size of the DB: the number of records to be deleted at each reorganisation is calculated on the basis of an empirically calculated size, this size can be changed by this factor. InOut: Scope Name Type Comment Input sPacketName STRING A string containing the name of the trace mgr packet rFactor REAL Value of the factor

ITrendStorageAccessReadOperator.ActivateMaxWarningRead (METH) ¶ METHOD ActivateMaxWarningRead Notification, that the option “activate max warning” a variable was read from table TblTrendConfiguration. InOut: Scope Name Type Comment Input iWhichVariable INT The 0 based index of the variable within all variables xActivateMaxWarning BOOL The value fo the option

ITrendStorageAccessReadOperator.ActivateMinWarningRead (METH) ¶ METHOD ActivateMinWarningRead Notification, that the option “activate min warning” a variable was read from table TblTrendConfiguration. InOut: Scope Name Type Comment Input iWhichVariable INT The 0 based index of the variable within all variables xActivateMinWarning BOOL The value fo the option

ITrendStorageAccessReadOperator.AfterReadingVariableConfiguration (METH) ¶ METHOD AfterReadingVariableConfiguration Notification, that reading the variable configuration from table TblTrendConfiguration has been completed. InOut: Scope Name Type Comment Input iWhichCall INT The 1-based index of the reading, i.e. of call to method prvTblTrendConfigurationGetConfig xChangeOfConfig BOOL This flag indicates, whether the given timestamp range of method Read spans more than one configuration, i.e. subsequent calls to method prvTblTrendConfigurationGetConfig will be done. Inout iCountVariables INT The number of variables of the corresponding trace manager packet, that will be read by method prvTblTrendConfigurationGetConfig