DataItemQualityCodes (GVL) ¶ InOut: Scope Name Type Initial Constant Mask_LowestLevel DWORD 16#FFFF Mask_DriverLevel DWORD 16#FF0000 Mask_ApplicationLevel DWORD 16#FF000000 AppLevel_LastUpdateFailed DWORD 16#1000000 AppLevel_Timeout DWORD 16#2000000

DataServerFlags (ENUM) ¶ TYPE DataServerFlags : Attributes: qualified_only InOut: Name None ForIntegratedVisu

DataServerRequestIdentification (ENUM) ¶ TYPE DataServerRequestIdentification : This enumeration is used to identify the requests to send to the PLC Attributes: qualified_only InOut: Name None AlarmsGetCount AlarmsGetAlarms

DataServerSettings (GVL) ¶ Attributes: qualified_only InOut: Scope Name Type Initial Comment Constant Tag_Timeout_DriverBusy DWORD 16#1 Returnvalue is a DWORD, number of milliseconds Tag_Timeout_DriverSyncShutdown DWORD 16#2 Returnvalue is a DWORD, number of milliseconds Tag_Timeslice_DriverSyncShutdown DWORD 16#3 Returnvalue is a DWORD, number of milliseconds Tag_Recover_ReconnectWaittime DWORD 16#4 Returnvalue is a DWORD, number of milliseconds Tag_Recover_ErrorWaittime DWORD 16#5 Returnvalue is a DWORD, number of milliseconds Tag_Recover_ReconnectBusyTimeoutWaittime DWORD 16#6 Returnvalue is a DWORD, number of milliseconds Tag_Recover_IdentityMismatch DWORD 16#7 Returnvalue is a DWORD, number of milliseconds Tag_Memory_StartReserveReadItems DWORD 16#8 Returnvalue is a DWORD Tag_Memory_StartReserveWriteItems DWORD 16#9 Returnvalue is a DWORD Tag_Recover_ReconnectCurrentWaittime DWORD 16#A Returnvalue is a DWORD, number of milliseconds; This setting is not cached by the dataserver, will be asked after some recoverable errors; can overwrite other settings if the return value is <> 0 Tag_UpdateInStopMode DWORD 16#B Returnvalue is in fact a boolean. 1 -> Do updates in Stop mode, 0 -> Do nothing in stop mode Default_Timeout_DriverBusy DWORD 5000 Default_Timeout_DriverSyncShutdown DWORD 3000 Default_Timeslice_DriverSyncShutdown DWORD 100 Default_Recover_ReconnectWaittime DWORD 20000 Default_Recover_ErrorWaittime DWORD 30000 Default_Recover_ReconnectBusyTimeoutWaittime DWORD 3000 Default_Recover_IdentityMismatch DWORD 120000 Default_Recover_ReconnectCurrentWaittime DWORD 0 no overwrite of existing times Default_UpdateInStopMode DWORD 0 do nothing while stopped Default_Memory_StartReserveReadItems DWORD 100 Default_Memory_StartReserveWriteItems DWORD 100

DataServer_StructReplacementInfo (STRUCT) ¶ TYPE DataServer_StructReplacementInfo : STRUCT InOut: Name Type pParentReplacementInfo POINTER TO DataServer_StructReplacementInfo arrName POINTER TO ARRAY [0..0] OF POINTER TO STRING(255) arrReplacement POINTER TO ARRAY [0..0] OF POINTER TO STRING(255) nCount INT

DataSourceShutdownFlags (ENUM) ¶ TYPE DataSourceShutdownFlags : InOut: Name Initial Succeeded 16#0 TimeoutOccurred 16#1

DataSourceState (ENUM) ¶ TYPE DataSourceState : InOut: Name Comment DS_New In this state only Initialize may be called DS_Initialized In this state only StartConnect may be called DS_Connecting While the driver is in this state, Connecting will be called. DS_Ready In this state, the driver is able to execute requests to its datasource. DS_Busy In this state, the driver currently is not able to execute requests to its datasource DS_ShuttingDown In this state only ShuttingDown will be called DS_Shutdown In this state the driver is shutdown and all allocated resources have been released DS_Error In this state the driver encountered an error that it cannot fix itself.

DataSourceTransactionResult (ENUM) ¶ TYPE DataSourceTransactionResult : InOut: Name TR_Ok TR_Pending TR_UnknownTransaction TR_Error

DriverInitConstants (GVL) ¶ InOut: Scope Name Type Initial Constant CustomerMask DWORD 16#FFFF0000 DriverMask DWORD 16#FFFF Customer_Standard WORD 16#0 Driver_Unknown WORD 16#0 Driver_Monitoring_Standard WORD 16#1 Driver_OPC_Standard WORD 16#2 Driver_SymbolicMonitoring_Standard WORD 16#3

DriverInitInfo (STRUCT) ¶ TYPE DriverInitInfo : STRUCT InOut: Name Type Comment dwDataTag DWORD identifies the kind of given initialization data dwDataVersion DWORD for extensibility of the init data dwDataSize DWORD size of the given data, correlated to dwDataVersion