IDriverRequestFactoryReusable.ReusableRequestsSupported (PROP) ¶ PROPERTY ReusableRequestsSupported : BOOL This property returns whether reusable requests are supported. Note If a driver in general supports those requests but not using the current device for example, then this property can return FALSE.
IDriverRequestReusable (ITF) ¶ INTERFACE IDriverRequestReusable EXTENDS IDriverRequest Implementations of this interface represent requests that can be used several times and can be used for both reading or writing. Properties: NextOperation Structure: NextOperation (Property)
IDriverRequestReusable.NextOperation (PROP) ¶ PROPERTY NextOperation : ReusableRequestOperations Gets or sets the operation that will be executed when the request is sent the next time.
IDriverSpecificData (ITF) ¶ INTERFACE IDriverSpecificData EXTENDS __SYSTEM.IQueryInterface A derived interface of this one can be used by drivers to attach information to instances of IDataItemBase Methods: Release Structure: Release (Method)
IDriverSpecificData.Release (METH) ¶ METHOD Release This method will be called when the underlying object should be released. It’s the implementation’s responsibility to release memory correctly etc.
IDriverSpecifiedSettings (ITF) ¶ INTERFACE IDriverSpecifiedSettings This interface can optionally be implemented by IDriver too. Methods: ReconnectWaitTime TimeoutSyncShutdown Structure: ReconnectWaitTime (Method) TimeoutSyncShutdown (Method)
IDriverSpecifiedSettings.ReconnectWaitTime (METH) ¶ METHOD ReconnectWaitTime : TIME InOut: Scope Name Type Return ReconnectWaitTime TIME Output xUseDefault BOOL
IDriverSpecifiedSettings.TimeoutSyncShutdown (METH) ¶ METHOD TimeoutSyncShutdown : TIME InOut: Scope Name Type Return TimeoutSyncShutdown TIME Output xUseDefault BOOL
IDriverSpecifiedSettingsReadOnChange (ITF) ¶ INTERFACE IDriverSpecifiedSettingsReadOnChange This interface can optionally be implemented by IDriver too. The interface should be implemented by an IDriver when the according implementation does not do cyclic updates of variables but instead executes read requests only triggered by changes of according variables on the connected device. Properties: ReadOnChangeOnly Structure: ReadOnChangeOnly (Property)
IDriverStateMachine.StartConnect (METH) ¶ METHOD StartConnect : SysTypes.RTS_IEC_RESULT InOut: Scope Name Type Comment Return StartConnect SysTypes.RTS_IEC_RESULT An error code representing the result of this operation. In case an error happens, an according eror code should be returned. Please remark that this operation is not expected to return ERR_PENDING. A successfull return (ERR_OK) of this method will then cause followup calls to IDriverStateMachine.Connecting .
