DatasourcesMgr.BeginDataConfiguration (METH) ¶ METHOD BeginDataConfiguration : SysTypes.RTS_IEC_RESULT This method locks the concurrent task for monitoring items and allows subsequent accesses to the configuration of the active. To unlock again afterwards, call EndDataConfiguration .. important:: Before calling methods like UseData or ReleaseData it is necessary to do this syncronisation to prevent undefined behaviour. InOut: Scope Name Type Comment Return BeginDataConfiguration SysTypes.RTS_IEC_RESULT Returns a runtime system error code (see CmpErrors.library) or one of |Errors| Input xBlocking BOOL This variable signals the way to do the synchronization. TRUE: the call will be blocking FALSE: the call will be nonblocking and might faile with the error code [Errors.ERR_DS_MULTITASKING_LOCKED|

DatasourcesMgr.EndDataConfiguration (METH) ¶ METHOD EndDataConfiguration : SysTypes.RTS_IEC_RESULT Releases a previously taken lock by BeginDataConfiguration InOut: Scope Name Type Comment Return EndDataConfiguration SysTypes.RTS_IEC_RESULT Returns a runtime system error code (see CmpErrors.library) or one of |Errors|

DatasourcesMgr.GetDatasource (METH) ¶ METHOD GetDatasource : IDatasources.IDatasource Returns the datasource representing the given object’s name. InOut: Scope Name Type Comment Return GetDatasource IDatasources.IDatasource The datasource object or 0 in case there is none with the given name. Input name STRING The name of the datasource as configured in the according object’s name in the project

DatasourcesMgr.GetItemInfo (METH) ¶ METHOD GetItemInfo : IDatasources.IDataItemBase InOut: Scope Name Type Return GetItemInfo IDatasources.IDataItemBase Input pstSymbol POINTER TO STRING

ItemList ¶ CreateItemList (Method) DeleteItemList (Method)

DatasourcesMgr.CreateItemList (METH) ¶ METHOD CreateItemList : IDatasources.IDataItemList Creates a new item list that can be used for reading/writing synchronously for example. Important Please remark that you have to release the returned object when it is no longer in use by calling |IDatasourcesMgr.DeleteItemList| InOut: Scope Name Type Comment Return CreateItemList IDatasources.IDataItemList Input udiInitialCapacity UDINT The initial capacity of this list (will be extended if it becomes larger)

DatasourcesMgr.DeleteItemList (METH) ¶ METHOD DeleteItemList : SysTypes.RTS_IEC_RESULT Deletes an item list and the items managed therin that was previously created using |IDatasourcesMgr.CreateItemList| InOut: Scope Name Type Comment Return DeleteItemList SysTypes.RTS_IEC_RESULT An error code representing the result of the operation. In case of success, ERR_OK will be returned Input itemsList IDatasources.IDataItemList

DatasourcesMgr.ReadItemsSync (METH) ¶ METHOD ReadItemsSync : SysTypes.RTS_IEC_RESULT Reads the given list of items synchronously. Important Please remark that the operation might take quite some time in case many items are contained within the list. For this time, the call is blocking! InOut: Scope Name Type Comment Return ReadItemsSync SysTypes.RTS_IEC_RESULT Input items IDatasources.IDataItemList The list of items that have to be read

DatasourcesMgr.ReleaseData (METH) ¶ METHOD ReleaseData : SysTypes.RTS_IEC_RESULT InOut: Scope Name Type Comment Return ReleaseData SysTypes.RTS_IEC_RESULT Input pstSymbol POINTER TO STRING The symbolic name of the variable to deactivate.

DatasourcesMgr.SetCredentialsProvider (METH) ¶ METHOD SetCredentialsProvider : SysTypes.RTS_IEC_RESULT InOut: Scope Name Type Return SetCredentialsProvider SysTypes.RTS_IEC_RESULT Input provider IDatasources.ICredentialsProvider