/// <summary>Establishes a physical connection to the remote server.</summary>
/// <exception cref="OpcResultException" caption="OpcResultException Class">If an OPC specific error occur this exception is raised. The Result field includes then the OPC specific code.</exception>
/// <param name="url">Name of the server. The usual form is http:://xxx/yyy, e.g. http://localhost//TsOpcXSampleServer/Service.asmx.</param>
public virtual void Connect(string url)
{
OpcConnectData connectData = null;
_factory = null;
OpcUrl opcurl = new OpcUrl(url);
Connect(opcurl, connectData);
}
/// <summary>
/// Establishes a physical connection to the remote server identified by a OpcUrl.
/// </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(OpcUrl url, OpcConnectData connectData)
{
if (url == null)
{
throw new ArgumentNullException("url");
}
if (_server != null)
{
throw new OpcResultException(new OpcResult((int)OpcResult.E_FAIL.Code, OpcResult.FuncCallType.SysFuncCall, null), "The server is already connected.");
}
// save url.
SetUrl(url);
try
{
_factory.ForceDa20Usage = ForceDa20Usage;
// instantiate the server object.
_server = _factory.CreateInstance(url, connectData);
// save the connect data.
_connectData = connectData;
try
{
// cache the supported locales.
GetSupportedLocales();
// update the default locale.
SetLocale(_locale);
SupportedSpecifications = new List <OpcSpecification>();
#if (_OPCCLIENTSDK_DA)
if (_server is Com.Da20.Server)
{
SupportedSpecifications.Add(OpcSpecification.OPC_DA_20);
}
else if (_server is Com.Da.Server)
{
SupportedSpecifications.Add(OpcSpecification.OPC_DA_30);
SupportedSpecifications.Add(OpcSpecification.OPC_DA_20);
}
#endif
#if (_OPCCLIENTSDK_AE)
#if (_OPCCLIENTSDK_DA)
else if (_server is Com.Ae.Server)
#else
if (_server is Com.Ae.Server)
#endif
{
SupportedSpecifications.Add(OpcSpecification.OPC_AE_10);
}
#endif
#if (_OPCCLIENTSDK_HDA)
#if (_OPCCLIENTSDK_DA || _OPCCLIENTSDK_AE)
else if (_server is Com.Hda.Server)
#else
if (_server is Com.Hda.Server)
#endif
{
SupportedSpecifications.Add(OpcSpecification.OPC_HDA_10);
}
#endif
#if (_OPCCLIENTSDK_XMLDA)
else if (m_server is Xml.Da.Server)
{
SupportedSpecifications.Add(OpcSpecification.XML_DA_10);
}
#endif
#if (_OPCCLIENTSDK_XI)
else if (m_server is Xi.Server)
{
SupportedSpecifications.Add(OpcSpecification.OPC_XI_10);
}
#endif
}
catch (Exception e)
{
}
}
catch (Exception e)
{
if (_server != null)
{
try { Disconnect(); }
catch (Exception e1)
{
}
}
throw e;
}
}
/// <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(OpcConnectData connectData)
{
Connect(_url, connectData);
}
/// <summary>
/// Creates a new instance of the server.
/// </summary>
public virtual IOpcServer CreateInstance(OpcUrl url, OpcConnectData connectData)
{
IOpcServer server = (IOpcServer)Activator.CreateInstance(SystemType, new object[] { url, connectData });
return(server);
}