public void ConnectToServer()
{
try
{
//LOCAL OPC CONNECTION kepware
//url = new Opc.URL("opcda://PCNAME/Kepware.KEPServerEX.V6");
//LOCAL OPC CONNECTION RSLinx
//url = new Opc.URL("opcda://PCNAME/RSLinx OPC Server");
//REMOTE OPC CONNECTION WHEN USING opcexpert tunneling
url = new Opc.URL("opcda://PCNAME/RSLinx Remote OPC Server.REMOTEPCNAME");
//REMOTE RSLinx OPC
//this requires DCOM setup
//url = new Opc.URL("opcda://PCNAME/RSLinx Remote OPC Server");
server = new Opc.Da.Server(fact, url);
System.Net.NetworkCredential networkCredential = new System.Net.NetworkCredential();
Opc.ConnectData connecteddata = new Opc.ConnectData(networkCredential);
server.Connect(url, connecteddata);
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group";
groupState.UpdateRate = 1; // this isthe time between every reads from OPC server
groupState.Active = true; //this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(UpdateTagData); //callback when the data are readed
Opc.Da.Item[] items_read = groupRead.AddItems(createSomeTags());
}
catch (Exception E)
{
Console.WriteLine(E.Message);
}
}
// Token: 0x06000022 RID: 34 RVA: 0x00002BA4 File Offset: 0x00001BA4
public virtual void Connect(URL url, ConnectData connectData)
{
if (url == null)
{
throw new ArgumentNullException("url");
}
if (this.m_server != null)
{
throw new AlreadyConnectedException();
}
this.SetUrl(url);
try
{
this.m_server = this.m_factory.CreateInstance(url, connectData);
this.m_connectData = connectData;
this.GetSupportedLocales();
this.SetLocale(this.m_locale);
}
catch (Exception ex)
{
if (this.m_server != null)
{
try
{
this.Disconnect();
}
catch
{
}
}
throw ex;
}
}
public void ConnectToServer()
{
try
{
url = new Opc.URL("opcda://IAPENG1/RSLinx OPC Server");
//server = new Opc.Da.Server(fact, null);
server = new Opc.Da.Server(fact, url);
System.Net.NetworkCredential networkCredential = new System.Net.NetworkCredential();
Opc.ConnectData connecteddata = new Opc.ConnectData(networkCredential);
server.Connect(url, connecteddata);
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group";
groupState.UpdateRate = 1000; // this isthe time between every reads from OPC server
groupState.Active = true; //this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(UpdateTagData); //callback when the data are readed
if (items[0] == null)
{
items[0] = new Opc.Da.Item();
items[1] = new Opc.Da.Item();
items[2] = new Opc.Da.Item();
items[3] = new Opc.Da.Item();
items[4] = new Opc.Da.Item();
items[5] = new Opc.Da.Item();
items[6] = new Opc.Da.Item();
items[7] = new Opc.Da.Item();
}
items[0].ItemName = "[PLC2]LocalDateTime[0]";
items[1].ItemName = "[PLC2]LocalDateTime[1]";
items[2].ItemName = "[PLC2]LocalDateTime[2]";
items[3].ItemName = "[PLC2]LocalDateTime[3]";
items[4].ItemName = "[PLC2]LocalDateTime[4]";
items[5].ItemName = "[PLC2]LocalDateTime[5]";
items[6].ItemName = "[PLC2]LocalDateTime[6]";
items[7].ItemName = "[PLC2]LocalDateTime";
items = groupRead.AddItems(items);
// Create a write group
groupStateWrite = new Opc.Da.SubscriptionState();
groupStateWrite.Name = "Group Write";
groupStateWrite.Active = false;//not needed to read if you want to write only
groupWrite = (Opc.Da.Subscription)server.CreateSubscription(groupStateWrite);
}
catch (Exception E)
{
Console.WriteLine(E.Message);
}
}
/// <summary>
/// Connect/Disconnect to the server.
/// </summary>
/// <returns></returns>
private bool Connect()
{
// Connect server
var url = new Opc.URL(OpcConnectionString);
// Create an unconnected server object.
OpcServer = GetServerForUrl(url);
if (OpcServer == null)
{
return(false);
}
// Invoke the connect server callback.
try
{
var connectData = new Opc.ConnectData(Credential, null);
OpcServer.Connect(connectData);
var opcDaSrerver = OpcServer as Opc.Da.Server;
if (opcDaSrerver == null)
{
return(false);
}
VendorInfo = opcDaSrerver.GetStatus().VendorInfo;
VersionInfo = opcDaSrerver.GetStatus().ProductVersion;
StatusInfo = opcDaSrerver.GetStatus().StatusInfo;
var state = new Opc.Da.SubscriptionState
{
ClientHandle = Guid.NewGuid().ToString(),
ServerHandle = null,
//Name = "DEFAULT",
Active = false,
UpdateRate = 1000,
KeepAlive = 0,
//Deadband = 0,
//Locale = null
};
Subscription = (Subscription)opcDaSrerver.CreateSubscription(state);
}
catch (Exception e)
{
throw e;
}
return(true);
}
//======================================================================
// IFactory
/// <summary>
/// Creates a new instance of the server.
/// </summary>
public virtual IServer CreateInstance(URL url, ConnectData connectData)
{
IServer server = null;
// instantiate the object locally.
if (!m_useRemoting)
{
server = (IServer)Activator.CreateInstance(m_systemType, new object[] { url, connectData });
}
// instantiate the object remotely using .NET remoting.
else
{
server = (IServer)Activator.GetObject(m_systemType, url.ToString());
}
return(server);
}
public Form1()
{
InitializeComponent();
OpcCom.ServerEnumerator se = new ServerEnumerator();
Opc.Server[] Servers;
String sErrFunc = "";
Opc.ConnectData cd = new Opc.ConnectData(new System.Net.NetworkCredential());
sErrFunc = "GetAvailableServers";
Servers = se.GetAvailableServers(Opc.Specification.COM_DA_20, "localhost", cd);
Console.WriteLine(Servers[1].Name.ToString());
Opc.URL url = new Opc.URL("opcda://localhost/" + Servers[0].Name);
OpcCom.Factory fact = new OpcCom.Factory();
server = new Opc.Da.Server(fact, null);
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
}
// Token: 0x06000713 RID: 1811 RVA: 0x00011858 File Offset: 0x00010858
public virtual IServer CreateInstance(URL url, ConnectData connectData)
{
IServer result;
if (!this.m_useRemoting)
{
result = (IServer)Activator.CreateInstance(this.m_systemType, new object[]
{
url,
connectData
});
}
else
{
//result = (IServer)Activator.GetObject(this.m_systemType, url.ToString());
result = null;
}
return(result);
}
/// <summary>
/// Establishes a physical connection to the remote server identified by a URL.
/// </summary>
/// <param name="url">The network address of the remote server.</param>
/// <param name="connectData">Any protocol configuration or user authenication information.</param>
public virtual void Connect(URL url, ConnectData connectData)
{
if (url == null)
{
throw new ArgumentNullException("url");
}
if (m_server != null)
{
throw new AlreadyConnectedException();
}
// save url.
SetUrl(url);
try
{
// instantiate the server object.
m_server = m_factory.CreateInstance(url, connectData);
// save the connect data.
m_connectData = connectData;
// cache the supported locales.
GetSupportedLocales();
// update the default locale.
SetLocale(m_locale);
}
catch (Exception e)
{
if (m_server != null)
{
try { Disconnect(); }
catch {}
}
throw e;
}
}
public void ConnectToServer()
{
try
{
//url = new Opc.URL("opcda://MUHUMTHA/Kepware.KEPServerEX.V6");
//url = new Opc.URL("opcda://IAPENG1/RSLinx OPC Server");
//REMOTE OPC CONNECTION
url = new Opc.URL("opcda://MUHUMTHA/RSLinx OPC Server.MUHUNTHANPC");
server = new Opc.Da.Server(fact, url);
System.Net.NetworkCredential networkCredential = new System.Net.NetworkCredential();
Opc.ConnectData connecteddata = new Opc.ConnectData(networkCredential);
server.Connect(url, connecteddata);
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group";
groupState.UpdateRate = 1; // this isthe time between every reads from OPC server
groupState.Active = true; //this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(UpdateTagData); //callback when the data are readed
//Opc.Da.Item[] items_read = groupRead.AddItems(createSomeTags());
Opc.Da.Item[] items_read = groupRead.AddItems(createSomeTags());
// Create a write group
//groupStateWrite = new Opc.Da.SubscriptionState();
//groupStateWrite.Name = "Group_Write";
//groupStateWrite.UpdateRate = 1000;
//groupStateWrite.Active = false;//not needed to read if you want to write only
//groupWrite = (Opc.Da.Subscription)server.CreateSubscription(groupStateWrite);
//groupWrite.DataChanged += new Opc.Da.DataChangedEventHandler(ReadCompleted);
Global.flag1 = true;
}
catch (Exception E)
{
Console.WriteLine(E.Message);
}
}
// Token: 0x06000021 RID: 33 RVA: 0x00002B93 File Offset: 0x00001B93
public virtual void Connect(ConnectData connectData)
{
this.Connect(this.m_url, connectData);
}
/// <summary>
/// Establishes a physical connection to the remote server.
/// </summary>
/// <param name="connectData">Any protocol configuration or user authenication information.</param>
public virtual void Connect(ConnectData connectData)
{
Connect(m_url, connectData);
}
