示例#1
0
        /// <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);
            }
        }
示例#2
0
 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());
 }