Requests ¶ CustomRequestResponse (FunctionBlock) FB_Exit (Method) ICDSV3Response ContentData (Property) ContentSize (Property) RawData (Property) RawSize (Property) IDriverCustomRequest Request (Property) Response (Property) IRequest Poll (Method) Release (Method) Send (Method) CustomRequestState (Enum) FailureReadRequest (FunctionBlock) NextOperation (Property) Poll (Method) Release (Method) Send (Method) IRequest (Interface) Poll (Method) Release (Method) Send (Method) IRequestNoSyncReleaseDuringShutdown (Interface) ReadItemInfo (Struct) ReadRequest (FunctionBlock) Abstract InActiveState (Property) ReleaseThis (Method) ReleaseVarList (Method) ReleasingAfterJoinDueToActiveState (Method) Init (Method) Poll (Method) Send (Method) ReadRequestState (Enum) ReadableRequestBase (FunctionBlock) Abstract InActiveState (Property) Poll (Method) ReleaseThis (Method) ReleaseVarList (Method) ReleasingAfterJoinDueToActiveState (Method) Send (Method) Init (Method) Protected AssignReadValues (Method) Release (Method) ReusableRequestState (Enum) WriteRequest (FunctionBlock) Init (Method) Poll (Method) Release (Method) Send (Method)

CustomRequestResponse (FB) ¶ FUNCTION_BLOCK CustomRequestResponse IMPLEMENTS IRequest , IDatasources.IDriverCustomRequest, IDatasources.ICDSV3Response Properties: ContentData ContentSize RawData RawSize Request Response Methods: FB_Exit Poll Release Send Structure: FB_Exit (Method) ICDSV3Response ContentData (Property) ContentSize (Property) RawData (Property) RawSize (Property) IDriverCustomRequest Request (Property) Response (Property) IRequest Poll (Method) Release (Method) Send (Method)

CustomRequestState (ENUM) ¶ TYPE CustomRequestState : Attributes: qualified_only InOut: Name Comment New New request Initialized Successfully initialized, i.e. the ICDSV3Request instance was set and the custom request can be sent Sent The custom request was sent and we are waiting for the result Completed The execution of the custom request was successful and the result is available. Failed

FailureReadRequest (FB) ¶ FUNCTION_BLOCK FailureReadRequest IMPLEMENTS IRequest , IDatasources.IDriverRequestReusable As there is no chance for signaling a lost connection when a read request is created, we return an accordingly failing object. This failing object is implemented by the current class Properties: NextOperation Methods: Poll Release Send Structure: NextOperation (Property) Poll (Method) Release (Method) Send (Method)

IRequest (ITF) ¶ INTERFACE IRequest EXTENDS IDatasources.IDriverRequest Methods: Poll Release Send Structure: Poll (Method) Release (Method) Send (Method)

IRequestNoSyncReleaseDuringShutdown (ITF) ¶ INTERFACE IRequestNoSyncReleaseDuringShutdown This optional interface can be implemented if a type of request must be released in an asynchronous way during shutdown!

ReadItemInfo (STRUCT) ¶ TYPE ReadItemInfo : STRUCT InOut: Name Type Comment orgArrayIndex UDINT The indes of the according item within the original list of items passed in RequestFactory.CreateReadRequest

ReadRequest (FB) ¶ FUNCTION_BLOCK ReadRequest EXTENDS ReadableRequestBase Properties: InActiveState Methods: Init Poll Send AssignReadValues , inherited from ReadableRequestBase Release , inherited from ReadableRequestBase ReleaseThis ReleaseVarList ReleasingAfterJoinDueToActiveState Structure: Abstract InActiveState (Property) ReleaseThis (Method) ReleaseVarList (Method) ReleasingAfterJoinDueToActiveState (Method) Init (Method) Poll (Method) Send (Method)

ReadRequestState (ENUM) ¶ TYPE ReadRequestState : Attributes: qualified_only InOut: Name Comment New New request Initialized Successfully initialized Registering The request is trying to register itself within the remote plc Registered The request was successfully registered within the remote PLC, values are avaialable and it can be executed Reading The request is currently reading values asynchronously Failed

ReadableRequestBase (FB) ¶ FUNCTION_BLOCK ABSTRACT ReadableRequestBase IMPLEMENTS IRequest , IRequestNoSyncReleaseDuringShutdown Properties: InActiveState Methods: Init Release AssignReadValues Poll ReleaseThis ReleaseVarList ReleasingAfterJoinDueToActiveState Send Structure: Abstract InActiveState (Property) Poll (Method) ReleaseThis (Method) ReleaseVarList (Method) ReleasingAfterJoinDueToActiveState (Method) Send (Method) Init (Method) Protected AssignReadValues (Method) Release (Method)