/// <summary>
/// 连接服务器
/// </summary>
/// <param name="serverName"></param>
/// <param name="host"></param>
public OpcResult Connect(string serverName, string host = "127.0.0.1")
{
OpcResult opcResult = OpcResult.ServerNoConnect;
try
{
this.OpcServerName = serverName;
this.Host = host;
if (string.IsNullOrWhiteSpace(serverName) || string.IsNullOrWhiteSpace(host))
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("未指定服务器或主机名称"));
}
opcResult = OpcResult.E_FAIL;
return(opcResult);
}
if (IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已经连接,host=" + host + ",serverName=" + serverName));
}
opcResult = OpcResult.S_OK;
return(opcResult);
}
var servers = OpcClientHelper.getOpcServers(host);
if (!Equals(null, servers) && servers.Any(a => a.Name == serverName))
{
opcServer = (Opc.Da.Server)servers.FirstOrDefault(a => a.Name == serverName);
opcServer.Connect();
//服务器断开事件
opcServer.ServerShutdown += opcServer_ServerShutdown;
IsConnected = true;
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("连接Opc服务器成功,host=" + host + ",serverName=" + serverName));
}
//连接成功后开启守护进程
daemonTimer.Enabled = true;
daemonTimer.Start();
opcResult = OpcResult.S_OK;
}
return(opcResult);
}
catch (Exception ex)
{
IsConnected = false;
if (!Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcErrorEventArgs(OpcResult.E_FAIL, "连接Opc服务器时出错：" + ex.Message, ex));
}
opcResult = OpcResult.E_FAIL;
return(opcResult);
}
}
private void intiOpcClientHelper()
{
opcClienthelper = new OpcClientHelper();
opcClienthelper.OnLogHappened += OpcClienthelper_OnLogHappened;
opcClienthelper.OnErrorHappened += OpcClienthelper_OnErrorHappened;
opcClienthelper.OnDataChanged += OpcClienthelper_OnDataChanged;
//var servers1 = OpcHelper.OpcClientHelper.GetOpcServers();
//var servers2 = OpcHelper.OpcClientHelper.GetOpcServers("127.0.0.1");
//clienthelper.Connect(servers1.First());
}