static public void ListHDAServers(String node)
{
IDiscovery discovery = new OpcCom.ServerEnumerator();
Opc.Server[] servers;
try
{
if (string.IsNullOrEmpty(node))
{
servers = discovery.GetAvailableServers(Specification.COM_HDA_10);
}
else
{
servers = discovery.GetAvailableServers(Specification.COM_HDA_10, node, null);
}
Console.WriteLine("Available servers are:");
foreach (Opc.Server s in servers)
{
Console.WriteLine(s.Name);
}
}
catch (System.Runtime.InteropServices.ExternalException e)
{
Console.WriteLine("Error getting available servers: {0}", e.Message);
}
}
private void OpcOptionsEditor_Loaded(object sender, RoutedEventArgs e)
{
var dispatcher = Dispatcher;
var action = new Action(() =>
{
try
{
IDiscovery discovery = new OpcCom.ServerEnumerator();
var localservers =
discovery.GetAvailableServers(Specification.COM_DA_20)
.Select(s => s.Url)
.ToArray();
dispatcher.Invoke(new Action(() =>
{
ItemsSource = localservers;
}));
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
}
});
action.BeginInvoke(action.EndInvoke, null);
}
//protected override IEnumerable<IOpcNode> CreateNodes(OpcNodeReferenceCollection references)
//{
// OpcFolderNode machineOne = new OpcFolderNode(new OpcName("Machine_1"));
// //references.Add(machineOne, OpcObjectTypes.ObjectsFolder);
// return new IOpcNode[] { machineOne };
//}
private void Brown_OPC_Server_Click(object sender, EventArgs e)
{
try
{
listBox1.Items.Clear();
//OpcFolderNode machineOne = new OpcFolderNode("localhost");
//String ss = machineOne.Parent.ToString();
//Console.WriteLine(ss);
System.Net.NetworkCredential mCredentials = new System.Net.NetworkCredential();
Opc.ConnectData mConnectData = new Opc.ConnectData(mCredentials);
OpcCom.ServerEnumerator se = new OpcCom.ServerEnumerator();
Opc.Server[] servers = se.GetAvailableServers(Opc.Specification.COM_DA_20, Node.Text.ToString(), mConnectData);
for (int i = 0; i < servers.Length; i++)
{
//Console.WriteLine("Server {0}: >{1}<", i, servers[i].Name);
listBox1.Items.Add(servers[i].Name);
}
}
catch (Exception ex)
{
MessageBox.Show("Error \n" + ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public static IList <HdaServer> GetAvailableServers(string host)
{
var opcServers = new OpcCom.ServerEnumerator().GetAvailableServers(Specification.COM_HDA_10, String.IsNullOrWhiteSpace(host) ? "localhost" : host, null);
var servers = new List <HdaServer>();
foreach (var opcServer in opcServers)
{
servers.Add(new HdaServer(host, opcServer.Name));
}
return(servers);
}
/// <summary>
/// 取得可用的Opc服务器
/// </summary>
/// <param name="host">Opc服务器主机名称或者IP,默认值为本机</param>
/// <returns>可用的服务器</returns>
private static Opc.Server[] getOpcServers(string host = "127.0.0.1")
{
try
{
Opc.IDiscovery opcdiscovery = new OpcCom.ServerEnumerator();
Opc.Server[] servers = opcdiscovery.GetAvailableServers(Specification.COM_DA_20, host, null);
return(servers);
}
catch (Exception ex)
{
System.Diagnostics.Debug.Print(ex.Message);
return(null);
}
}
//public bool IsConnectedToOPCDAServer { get { if (oPCDAServer == null) return false; else return oPCDAServer.IsConnected; } }
#endregion
public OPCClassicBrowserEngine()
{
this.OPCGroupSizeLimit = OPCBackEnd.Config.OPCClassic_SubscriptionGroupSizeLimit.ToInt(40);
_OPCWrapper = new OpcCom.ServerEnumerator();
_BrowseFilters = new Opc.Da.BrowseFilters()
{
ReturnAllProperties = true,
ReturnPropertyValues = true,
BrowseFilter = Opc.Da.browseFilter.all,
MaxElementsReturned = 0
};
//Check for Tag Inactivity every 5s. Every call by client will update it's activity.
//If tag has been inactive for more than 3x it's update interval, remove the tag from subscription (5s min inactivity time)
OPTimer CheckInactivityTimer = new OPTimer("OPC Classic Browser Engine Check Inactivity Timer", 5000);
CheckInactivityTimer.Elapsed += (s) =>
{
List <RegisteredTag> InactiveTags = this.RegisteredTags.Values.Where(RT =>
{
if (RT.UpdateIntervalInMS <= 5000)
{
return((DateTime.Now - RT.LastCalled).TotalMilliseconds > 5000);
}
else
{
return((DateTime.Now - RT.LastCalled).TotalMilliseconds > 3 * RT.UpdateIntervalInMS);
}
}).ToList();
foreach (RegisteredTag InactiveTag in InactiveTags)
{
foreach (Opc.Da.Server OPCServer in _OPCDAServers)
{
if (!OPCServer.IsConnected)
{
continue;
}
Subscription SubscriptionWhereInactiveTagIs = OPCServer.Subscriptions.FindSubcriptionThatHasItem(InactiveTag.Id, out Item InactiveItem);
if (SubscriptionWhereInactiveTagIs != null)
{
SubscriptionWhereInactiveTagIs.RemoveItems(new ItemIdentifier[] { InactiveItem });
}
}
this.RegisteredTags.Remove(InactiveTag.Id);
}
return(Task.CompletedTask);
};
CheckInactivityTimer.Start();
}
private void uiRefresh_Click(object sender, EventArgs e)
{
if (uiHostName.Text == string.Empty)
{
return;
}
IDiscovery discovery = new OpcCom.ServerEnumerator();
try
{
uiServerBindingSource.DataSource = discovery.GetAvailableServers(Specification.COM_DA_20, uiHostName.Text, null);
CheckValidity(null, null);
}
catch
{
MessageBox.Show("OPC сервера не найдены", "Предупреждение", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
public ObservableCollection <mServerItem> GetServers(string hostname)
{
try {
OpcCom.ServerEnumerator discovery = new OpcCom.ServerEnumerator();
if (hostname == "")
{
hostname = "localhost";
}
selectedServer.Host = hostname;
//Get all local OPC DA servers of version 3.0
Opc.Server[] localservers = discovery.GetAvailableServers(Opc.Specification.COM_DA_20, hostname, null);
listServers.Clear();
foreach (Opc.Server srv in localservers)
{
mServerItem si = new mServerItem(true);
si.Name = srv.Name;
si.Description = srv.Locale;
si.UrlString = srv.Url.ToString();
listServers.Add(si);
}
}
catch (Exception ex)
{
OnReportMessage("Opc server enumerator failed");
OnReportMessage(ex.Message);
}
//Get all OPC DA servers of version 2.0 of machine "MyMachine"
//Opc.Server[] hostservers = discovery.GetAvailableServers(Opc.Specification.COM_DA_20, "MNS1-179N", null);
return(listServers);
}
private void OpcOptionsEditor_Loaded(object sender, RoutedEventArgs e)
{
var dispatcher = Dispatcher;
var action = new Action(() =>
{
try
{
IDiscovery discovery = new OpcCom.ServerEnumerator();
var localservers =
discovery.GetAvailableServers(Specification.COM_DA_20)
.Select(s => s.Url)
.ToArray();
dispatcher.Invoke(new Action(() =>
{
ItemsSource = localservers;
}));
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
}
});
action.BeginInvoke(action.EndInvoke, null);
}
private static Opc.Server[] enumServers(string addr)
{
using (var gen = new OpcCom.ServerEnumerator()) {
return(gen.GetAvailableServers(Opc.Specification.COM_DA_20, addr, null));
}
}
public OPCUABrowserEngine(string SSLCertificateDirectory = null)
{
this.OPCGroupSizeLimit = OPCBackEnd.Config.OPCCUA_SubscriptionGroupSizeLimit.ToInt(40);
#region GENERATE APPLICATION CONFIGURATION
_OPCWrapper = new OpcCom.ServerEnumerator();
if (SSLCertificateDirectory == null)
{
_SSLCertificateDirectory = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData) + "\\Vlix\\VlixOPC\\Certs";
}
else
{
_SSLCertificateDirectory = SSLCertificateDirectory;
}
_Config = new ApplicationConfiguration()
{
ApplicationName = "VlixOPCUABrowser",
ApplicationType = ApplicationType.Client,
SecurityConfiguration = new SecurityConfiguration
{
//This is the App's certificate that should exist it the 'Own' directory
ApplicationCertificate = new CertificateIdentifier
{
StoreType = @"Directory",
StorePath = _SSLCertificateDirectory + "\\Own",
SubjectName = Utils.Format(@"CN={0}, DC={1}", "VlixOPCUABrowser", System.Net.Dns.GetHostName())
},
TrustedPeerCertificates = new CertificateTrustList {
StoreType = @"Directory", StorePath = _SSLCertificateDirectory + "\\Trusted",
},
TrustedIssuerCertificates = new CertificateTrustList {
StoreType = @"Directory", StorePath = _SSLCertificateDirectory + "\\Issuers",
},
RejectedCertificateStore = new CertificateTrustList {
StoreType = @"Directory", StorePath = _SSLCertificateDirectory + "\\Rejected",
},
NonceLength = 32,
AutoAcceptUntrustedCertificates = true
},
TransportConfigurations = new TransportConfigurationCollection(),
TransportQuotas = new TransportQuotas {
OperationTimeout = 15000
},
ClientConfiguration = new ClientConfiguration {
DefaultSessionTimeout = 60000
},
DisableHiResClock = true
};
_Config.Validate(ApplicationType.Client); //This only checks if any certificates exists (in the predefined area). If no certificates exist, nothing will happen.
#endregion
OPTimer CheckInactivityTimer = new OPTimer("OPCUABrowserEngine Check Inactivity Timer", 5000);
CheckInactivityTimer.Elapsed += (s) =>
{
List <RegisteredTag> InactiveTags = this.RegisteredTags.Values.Where(RT =>
{
if (RT.UpdateIntervalInMS <= 5000)
{
return((DateTime.Now - RT.LastCalled).TotalMilliseconds > 5000);
}
else
{
return((DateTime.Now - RT.LastCalled).TotalMilliseconds > 3 * RT.UpdateIntervalInMS);
}
}).ToList();
foreach (RegisteredTag InactiveTag in InactiveTags)
{
foreach (OPCUAServer OPCServer in _OPCUAServers)
{
if (OPCServer.Session == null || !OPCServer.Session.Connected)
{
continue;
}
//ILocalNode NodeIdObject = OPCServer.Session.NodeCache.Find(new NodeId(InactiveTag.Id)) as ILocalNode;
Subscription SubscriptionWhereInactiveTagIs = OPCServer.Session.Subscriptions.FindSubcriptionThatHasItem(InactiveTag.Id, out MonitoredItem InactiveItem);
if (SubscriptionWhereInactiveTagIs != null)
{
SubscriptionWhereInactiveTagIs.RemoveItem(InactiveItem);
}
}
this.RegisteredTags.Remove(InactiveTag.Id);
}
};
CheckInactivityTimer.Start();
}