/// <summary>
/// Unsubscribes the specified <paramref name="handler"/> from the controller with the specified <paramref name="controllerId"/>.
/// The handler won't get executed on a change of the controller.
/// </summary>
/// <param name="controllerId">The id of the controller to not anymore observe.</param>
/// <param name="handler">The handler to unsubscribe.</param>
public void UnsubsribeFromControllerChanges(int controllerId, Action <IController> handler)
{
IController controller = ControllerTree.GetController(controllerId);
foreach (Tag controllerTag in controller.GetAllAssociatedTags())
{
controllerTag.ValueChanged -= NotifySubscribers;
SlowTagListener.RemoveTag(controllerTag);
}
lock (_lockSubscribers)
{
_subscribers.RemoveAll(t => Equals(t.Item2, handler));
}
}
/// <summary>
/// Subscribes the specified <paramref name="handler"/> on the controller with the specified <paramref name="controllerId"/>.
/// The handler gets executed whenever the controller changed a value.
/// </summary>
/// <param name="controllerId">The id of the controller to observe.</param>
/// <param name="handler">The handler to get executed on a controller change.</param>
public void SubscribeForControllerChanges(int controllerId, Action <IController> handler)
{
IController controller = ControllerTree.GetController(controllerId);
lock (_lockSubscribers)
{
_subscribers.Add(new Tuple <int, Action <IController> >(controllerId, handler));
}
foreach (Tag controllerTag in controller.GetAllAssociatedTags())
{
SlowTagListener.AddTag(controllerTag);
controllerTag.ValueChanged += NotifySubscribers;
}
SlowTagListener.RefreshAll();
}
public void Initialize(CancellationToken token, string name, string adsPath, int adsPort, string rootController, bool enableStateLogging = false)
{
_adsPath = adsPath;
_adsPort = adsPort;
_pathRootController = rootController;
_enableSubStateLogging = enableStateLogging;
Name = name;
FastTagListener.Name = name;
FastTagListener.AddressAndPath = adsPath + ":" + adsPort;
SlowTagListener.Name = name;
SlowTagListener.AddressAndPath = adsPath + ":" + adsPort;
TagController.StartConnection(adsPath, adsPort);
if (!TagController.IsConnected)
{
throw new Exception("Can't initialize " + name + " because connection to PLC failed! (Address: " + adsPath + ":" + adsPort);
}
FastTagListener.CommunicationProblemOccured += TagListenerCommunicationProblemOccurred;
SlowTagListener.CommunicationProblemOccured += TagListenerCommunicationProblemOccurred;
try
{
_plcSaberLoggerDchRecv = new GenericDataChannelListener <PlcSaberLoggerDataStruct>(FastTagListener, TagController);
_plcSaberLoggerDchRecv.SetChannel("_pSaberLogger^.fbDataChannel", _pathRootController, "T_Logger_DCH");
_plcSaberLoggerDchRecv.DataReceived += PlcSaberLoggerDataReceived;
_plcSaberLoggerDchRecv.CommunicationProblemOccured += PlcSaberLoggerCommunicationProblemOccured;
}
catch (Exception e)
{
_logger.Error("Initialization of Logger Datachannel failed:", e);
}
InitControllerTags();
ListenToPlcModuleActualValues();
ListenToPlcModuleState(enableStateLogging);
Importer.Initialize(SlowTagListener, _adsPath, _adsPort, _pathRootController);
_lastKeepAliveToggleTime = DateTime.Now;
FastTagListener.RefreshAll();
SlowTagListener.RefreshAll();
}
public void Activate()
{
SlowTagListener.StartListening(_adsPath, _adsPort);
FastTagListener.StartListening(_adsPath, _adsPort);
}
