Beispiel #1
0
 private void createLoader()
 {
     if (this._loader == null)
     {
         this._loader = (AdsSymbolLoader)this.OnCreateLoader();
     }
 }
Beispiel #2
0
 private ISymbolLoader OnCreateLoader()
 {
     if (!this._session.IsConnected)
     {
         throw new SessionNotConnectedException("Cannot create symbol loader!", this._session);
     }
     this._loader = this._session.Connection.CreateSymbolLoader(this._session, this._session.Settings.SymbolLoader);
     return(this._loader);
 }
Beispiel #3
0
        public void CopyPasteTestDynamic()
        {
            using (TcAdsClient client = new TcAdsClient())
            {
                client.Synchronize = false;

                // Connect to the target device
                client.Connect("164.4.4.112.1.1", 853);

                // Usage of "dynamic" Type and Symbols (>= .NET4 only)
                SymbolLoaderSettings settings  = new SymbolLoaderSettings(SymbolsLoadMode.DynamicTree);
                IAdsSymbolLoader     dynLoader = (IAdsSymbolLoader)SymbolLoaderFactory.Create(client, settings);

                // Set the Default setting for Notifications
                dynLoader.DefaultNotificationSettings = new AdsNotificationSettings(AdsTransMode.OnChange, 200, 2000);

                // Get the Symbols (Dynamic Symbols)
                dynamic dynamicSymbols = ((IDynamicSymbolLoader)dynLoader).SymbolsDynamic;

                dynamic adsPort = dynamicSymbols.TwinCAT_SystemInfoVarList._AppInfo.AdsPort;

                // Access Main Symbol with Dynamic Language Runtime support (DLR)
                // Dynamically created property "Main"
                // dynamic symMain = dynamicSymbols.Main;

                // Main is an 'VirtualSymbol' / Organizational unit that doesn't have a value
                // Calling ReadValue is not allowed
                // bool test = symMain.HasValue;
                // dynamic invalid = symMain.ReadValue();

                // Reading TaskInfo Value
                // With calling ReadValue() a 'snapshot' of the Symbols Instance is taken
                dynamic vTaskInfoArray = dynamicSymbols.TwinCAT_SystemInfoVarList._TaskInfo.ReadValue();

                // Getting the Snapshot time in UTC format
                DateTime timeStamp1 = vTaskInfoArray.UtcTimeStamp;

                // Getting TaskInfo Symbol for Task 1
                dynamic symTaskInfo1 = dynamicSymbols.TwinCAT_SystemInfoVarList._TaskInfo[1];

                // Getting CycleCount Symbol
                dynamic symCycleCount = symTaskInfo1.CycleCount;

                // Take Snapshot value of the ApplicationInfo struct
                dynamic vAppInfo = dynamicSymbols.TwinCAT_SystemInfoVarList._AppInfo.ReadValue();

                // Get the UTC Timestamp of the snapshot
                DateTime timeStamp2 = vAppInfo.UtcTimeStamp;

                // Access the ProjectName of the ApplicationInfo Snapshot (type-safe!)
                string projectNameValue = vAppInfo.ProjectName;

                // Reading the CycleCount Value
                uint cycleCountValue = symTaskInfo1.CycleCount.ReadValue(); // Taking a Value Snapshot

                // Registering for dynamic "ValueChanged" events for the Values
                // Using Default Notification settings
                symCycleCount.ValueChanged += new EventHandler <ValueChangedArgs>(CycleCountValueChanged);

                // Override default notification settings
                symTaskInfo1.NotificationSettings = new AdsNotificationSettings(AdsTransMode.Cyclic, 500, 0);

                // Register for ValueChanged event.
                symTaskInfo1.ValueChanged +=
                    new EventHandler <ValueChangedArgs>(TaskInfo1ValueValueChanged); // Struct Type

                Thread.Sleep(10000);                                                 // Sleep main thread for 10 Seconds
            }

            Console.WriteLine("CycleCount Changed events received: {0}", cycleCountEvents);
            Console.WriteLine("taskInfo1 Changed events received: {0}", taskInfo1Events);
        }