public void Work() { int i = 5; if (i == 1) { url = new Opc.URL("opcda://192.168.0.4/OPC.PHDServerDA.1"); server = new Opc.Da.Server(fact, null); server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential())); Opc.Da.Item[] itemCollection = new Opc.Da.Item[1]; itemCollection[0] = new Opc.Da.Item { ItemName = "RTOS.TEST.PV", MaxAge = -1 }; Opc.Da.ItemValueResult[] result = server.Read(itemCollection); Console.WriteLine(result[0].Value); server.Disconnect(); } else if (i == 2) { url = new Opc.URL("opcda://192.168.0.4/OPC.PHDServerDA.1"); server = new Opc.Da.Server(fact, null); server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential())); groupState = new Opc.Da.SubscriptionState(); groupState.Name = "Group"; groupState.ServerHandle = null; groupState.ClientHandle = Guid.NewGuid().ToString(); groupState.Active = true; groupState.UpdateRate = 1000; groupState.Deadband = 0; groupState.Locale = null; groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState); string[] itemName = { "RTOS.TEST.PV", "RTOR.TI1237.DACA.PV" }; Opc.Da.Item[] items = new Opc.Da.Item[2]; for (int j = 0; j < items.Length; j++) { items[j] = new Opc.Da.Item(); items[j].ClientHandle = Guid.NewGuid().ToString(); items[j].ItemPath = null; items[j].ItemName = itemName[j]; } groupRead.AddItems(items); //groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(group_DataChanged); Opc.Da.ItemValueResult[] results = groupRead.Read(groupRead.Items); foreach (ItemValueResult result in results) { Console.WriteLine("{0},{1},{2},{3}", result.ItemName, result.Value, result.Quality, result.Timestamp); } //groupRead.DataChanged -= new Opc.Da.DataChangedEventHandler(group_DataChanged); groupRead.RemoveItems(groupRead.Items); server.CancelSubscription(groupRead); groupRead.Dispose(); server.Disconnect(); } else if (i == 3) { url = new Opc.URL("opcda://192.168.0.4/OPC.PHDServerDA.1"); server = new Opc.Da.Server(fact, null); server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential())); groupState = new Opc.Da.SubscriptionState(); groupState.Name = "Group"; groupState.ServerHandle = null; groupState.ClientHandle = Guid.NewGuid().ToString(); groupState.Active = true; groupState.UpdateRate = 1000; groupState.Deadband = 0; groupState.Locale = null; groupWrite = (Opc.Da.Subscription)server.CreateSubscription(groupState); string[] itemName = { "RTOS.TEST.PV", "RTOS.TEST2.PV" }; Opc.Da.Item[] items = new Opc.Da.Item[2]; for (int j = 0; j < items.Length; j++) { items[j] = new Opc.Da.Item(); items[j].ClientHandle = Guid.NewGuid().ToString(); items[j].ItemPath = null; items[j].ItemName = itemName[j]; } groupWrite.AddItems(items); //groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(group_DataChanged); Opc.Da.ItemValue[] writeValues = new Opc.Da.ItemValue[groupWrite.Items.Length]; for (int k = 0; k < groupWrite.Items.Length; k++) { writeValues[k] = new Opc.Da.ItemValue((ItemIdentifier)groupWrite.Items[k]); } writeValues[0].Value = 5; writeValues[1].Value = 6; groupWrite.Write(writeValues); Console.WriteLine("Press any key to close..."); Console.ReadLine(); //groupRead.DataChanged -= new Opc.Da.DataChangedEventHandler(group_DataChanged); groupWrite.RemoveItems(groupWrite.Items); server.CancelSubscription(groupWrite); groupWrite.Dispose(); server.Disconnect(); } else if (i == 4) { url = new Opc.URL("opchda://192.168.0.4/OPC.PHDServerHDA.1"); serverHda = new Opc.Hda.Server(fact, null); serverHda.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential())); try { } catch (Opc.ConnectFailedException opcConnEx) { Console.WriteLine(string.Format("Could not connect to server {0}", "OPC.PHDServerHDA.1")); Console.WriteLine(opcConnEx.ToString()); } Console.WriteLine("Are we connected? " + serverHda.IsConnected); string[] itemName = { "RTOS.TEST.PV", "RTOS.TEST2.PV" }; Opc.Hda.Trend groupHda = new Trend(serverHda); groupHda.Name = "HDA"; groupHda.AggregateID = AggregateID.NOAGGREGATE; DateTime startTime = DateTime.Now.AddHours(-1); DateTime endTime = DateTime.Now; groupHda.StartTime = new Opc.Hda.Time(startTime); groupHda.EndTime = new Opc.Hda.Time(endTime); groupHda.MaxValues = 0; groupHda.IncludeBounds = false; serverHda.Trends.Add(groupHda); Opc.Hda.Item[] items = new Opc.Hda.Item[2]; for (int m = 0; m < 2; m++) { items[m] = new Opc.Hda.Item(); items[m].ItemName = itemName[m]; items[m].ItemPath = null; items[m].ClientHandle = Guid.NewGuid().ToString(); } IdentifiedResult[] identifiedResult = serverHda.CreateItems(items); if (identifiedResult != null) { foreach (IdentifiedResult item in identifiedResult) { if (item.ResultID.Succeeded()) { groupHda.Items.Add(new Opc.Hda.Item(item)); } } } Opc.Hda.ItemValueCollection[] results = groupHda.ReadRaw(); Opc.Hda.ItemValueCollection result1 = results[0]; foreach (Opc.Hda.ItemValue result in result1) { Console.WriteLine("{0},{1},{2}", result.Value, result.Quality, result.Timestamp); } serverHda.Disconnect(); } else if (i == 5) { url = new Opc.URL("opchda://192.168.0.4/OPC.PHDServerHDA.1"); serverHda = new Opc.Hda.Server(fact, null); serverHda.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential())); try { } catch (Opc.ConnectFailedException opcConnEx) { Console.WriteLine(string.Format("Could not connect to server {0}", "OPC.PHDServerHDA.1")); Console.WriteLine(opcConnEx.ToString()); } Console.WriteLine("Are we connected? " + serverHda.IsConnected); string[] itemName = { "RTOR.TI1237.DACA.PV", "RTOS.TEST2.PV" }; Opc.Hda.Trend groupHda = new Trend(serverHda); groupHda.Name = "HDA"; groupHda.AggregateID = AggregateID.AVERAGE; DateTime startTime = DateTime.Now.AddHours(-1); DateTime endTime = DateTime.Now; //TimeSpan span = endTime.Subtract(startTime); //int calcInterval = ((int)span.TotalSeconds); //groupHda.ResampleInterval = (decimal)calcInterval; //DateTime startTime = new DateTime(2020, 6, 12, 9, 0, 0, 0); //DateTime endTime = new DateTime(2020, 6, 12, 10, 0, 0, 0); int calcInterval = 300; groupHda.ResampleInterval = (decimal)calcInterval; groupHda.StartTime = new Opc.Hda.Time(startTime); groupHda.EndTime = new Opc.Hda.Time(endTime); groupHda.MaxValues = 0; groupHda.IncludeBounds = false; serverHda.Trends.Add(groupHda); Opc.Hda.Item[] items = new Opc.Hda.Item[2]; for (int m = 0; m < 2; m++) { items[m] = new Opc.Hda.Item(); items[m].ItemName = itemName[m]; items[m].ItemPath = null; items[m].ClientHandle = Guid.NewGuid().ToString(); } IdentifiedResult[] identifiedResult = serverHda.CreateItems(items); if (identifiedResult != null) { foreach (IdentifiedResult item in identifiedResult) { if (item.ResultID.Succeeded()) { groupHda.Items.Add(new Opc.Hda.Item(item)); } } } Opc.Hda.ItemValueCollection[] results = groupHda.ReadProcessed(); Opc.Hda.ItemValueCollection result1 = results[0]; foreach (Opc.Hda.ItemValue result in result1) { Console.WriteLine("{0},{1},{2}", result.Value, result.Quality, result.Timestamp); } serverHda.Disconnect(); } }