/// <summary>
/// 连接OPC
/// </summary>
/// <returns></returns>
public bool Connect(string opcServerName, string opcServerIp)
{
try
{
Opc.Server[] serverArray = new ServerEnumerator().GetAvailableServers(Specification.COM_DA_20, opcServerIp, null);
if (serverArray != null)
{
Opc.Server server = serverArray.Where(a => a.Name == opcServerName).FirstOrDefault();
if (server != null)
{
server.Connect();
this.Server = (Opc.Da.Server)server;
return(true);
}
}
}
catch (Exception ex) { if (OnScanError != null)
{
OnScanError(ex);
}
}
this.Close();
return(false);
}
/// <summary>
/// Returns a list of servers that support the specified specification on the specified host.
/// </summary>
public Opc.Server[] GetAvailableServers(Specification specification, string host, ConnectData connectData)
{
lock (this)
{
NetworkCredential credentials = (connectData != null)?connectData.GetCredential(null, null):null;
// connect to the server.
m_server = (IOPCServerList2)OpcCom.Interop.CreateInstance(CLSID, host, credentials);
m_host = host;
try
{
ArrayList servers = new ArrayList();
// convert the interface version to a guid.
Guid catid = new Guid(specification.ID);
// get list of servers in the specified specification.
IOPCEnumGUID enumerator = null;
m_server.EnumClassesOfCategories(
1,
new Guid[] { catid },
0,
null,
out enumerator);
// read clsids.
Guid[] clsids = ReadClasses(enumerator);
// release enumerator object.
OpcCom.Interop.ReleaseServer(enumerator);
enumerator = null;
// fetch class descriptions.
foreach (Guid clsid in clsids)
{
Factory factory = new OpcCom.Factory();
try
{
URL url = CreateUrl(specification, clsid);
Opc.Server server = null;
if (specification == Specification.COM_DA_30)
{
server = new Opc.Da.Server(factory, url);
}
else if (specification == Specification.COM_DA_20)
{
server = new Opc.Da.Server(factory, url);
}
else if (specification == Specification.COM_AE_10)
{
server = new Opc.Ae.Server(factory, url);
}
else if (specification == Specification.COM_HDA_10)
{
server = new Opc.Hda.Server(factory, url);
}
else if (specification == Specification.COM_DX_10)
{
server = new Opc.Dx.Server(factory, url);
}
servers.Add(server);
}
catch (Exception)
{
// ignore bad clsids.
}
}
return((Opc.Server[])servers.ToArray(typeof(Opc.Server)));
}
finally
{
// free the server.
OpcCom.Interop.ReleaseServer(m_server);
m_server = null;
}
}
}
public Opc.Server[] GetAvailableServers(Specification specification, string host, ConnectData connectData)
{
Opc.Server[] serverArray;
lock (this)
{
NetworkCredential credential = (connectData != null) ? connectData.GetCredential(null, null) : null;
this.m_server = (IOPCServerList2)Interop.CreateInstance(CLSID, host, credential);
this.m_host = host;
try
{
ArrayList list = new ArrayList();
Guid guid = new Guid(specification.ID);
IOPCEnumGUID ppenumClsid = null;
Guid[] rgcatidImpl = new Guid[] { guid };
this.m_server.EnumClassesOfCategories(1, rgcatidImpl, 0, null, out ppenumClsid);
Guid[] guidArray = this.ReadClasses(ppenumClsid);
Interop.ReleaseServer(ppenumClsid);
ppenumClsid = null;
foreach (Guid guid2 in guidArray)
{
OpcCom.Factory factory = new OpcCom.Factory();
try
{
URL url = this.CreateUrl(specification, guid2);
Opc.Server server = null;
if (specification == Specification.COM_DA_30)
{
server = new Opc.Da.Server(factory, url);
}
else if (specification == Specification.COM_DA_20)
{
server = new Opc.Da.Server(factory, url);
}
else if (specification == Specification.COM_AE_10)
{
server = new Opc.Ae.Server(factory, url);
}
else if (specification == Specification.COM_HDA_10)
{
server = new Opc.Hda.Server(factory, url);
}
else if (specification == Specification.COM_DX_10)
{
server = new Opc.Dx.Server(factory, url);
}
list.Add(server);
}
catch (Exception)
{
}
}
serverArray = (Opc.Server[])list.ToArray(typeof(Opc.Server));
}
finally
{
Interop.ReleaseServer(this.m_server);
this.m_server = null;
}
}
return(serverArray);
}
// Token: 0x06000004 RID: 4 RVA: 0x000020E4 File Offset: 0x000010E4
public Opc.Server[] GetAvailableServers(Specification specification, string host, ConnectData connectData)
{
Opc.Server[] result;
lock (this)
{
NetworkCredential credential = (connectData != null) ? connectData.GetCredential(null, null) : null;
this.m_server = (IOPCServerList2)Interop.CreateInstance(ServerEnumerator.CLSID, host, credential);
this.m_host = host;
try
{
ArrayList arrayList = new ArrayList();
Guid guid = new Guid(specification.ID);
IOPCEnumGUID iopcenumGUID = null;
this.m_server.EnumClassesOfCategories(1, new Guid[]
{
guid
}, 0, null, out iopcenumGUID);
Guid[] array = this.ReadClasses(iopcenumGUID);
Interop.ReleaseServer(iopcenumGUID);
iopcenumGUID = null;
foreach (Guid clsid in array)
{
Factory factory = new Factory();
try
{
URL url = this.CreateUrl(specification, clsid);
Opc.Server value = null;
if (specification == Specification.COM_DA_30)
{
value = new Opc.Da.Server(factory, url);
}
else if (specification == Specification.COM_DA_20)
{
value = new Opc.Da.Server(factory, url);
}
else if (specification == Specification.COM_AE_10)
{
value = new Opc.Ae.Server(factory, url);
}
else if (specification == Specification.COM_HDA_10)
{
value = new Opc.Hda.Server(factory, url);
}
else if (specification == Specification.COM_DX_10)
{
value = new Opc.Dx.Server(factory, url);
}
arrayList.Add(value);
}
catch (Exception)
{
}
}
result = (Opc.Server[])arrayList.ToArray(typeof(Opc.Server));
}
finally
{
Interop.ReleaseServer(this.m_server);
this.m_server = null;
}
}
return(result);
}
