1450 lines
51 KiB
C#
1450 lines
51 KiB
C#
using Opc.Ua;
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using Opc.Ua.Client;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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namespace OpcUaHelper
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{
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/// <summary>
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/// 一个二次封装了的OPC UA库，支持从opc ua服务器读写节点数据，批量读写，订阅，批量订阅，历史数据读取，方法调用操作。
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/// </summary>
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public class OpcUaClient
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{
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#region Constructors
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/// <summary>
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/// 默认的构造函数，实例化一个新的OPC UA类
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/// </summary>
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public OpcUaClient()
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{
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dic_subscriptions = new Dictionary<string, Subscription>();
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var certificateValidator = new CertificateValidator();
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certificateValidator.CertificateValidation += (sender, eventArgs) =>
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{
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if (ServiceResult.IsGood(eventArgs.Error))
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eventArgs.Accept = true;
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else if (eventArgs.Error.StatusCode.Code == StatusCodes.BadCertificateUntrusted)
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eventArgs.Accept = true;
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else
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throw new Exception(string.Format("Failed to validate certificate with error code {0}: {1}", eventArgs.Error.Code, eventArgs.Error.AdditionalInfo));
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};
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SecurityConfiguration securityConfigurationcv = new SecurityConfiguration
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{
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AutoAcceptUntrustedCertificates = true,
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RejectSHA1SignedCertificates = false,
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MinimumCertificateKeySize = 1024,
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};
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certificateValidator.Update(securityConfigurationcv);
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// Build the application configuration
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var configuration = new ApplicationConfiguration
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{
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ApplicationName = OpcUaName,
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ApplicationType = ApplicationType.Client,
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CertificateValidator = certificateValidator,
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ApplicationUri = "urn:MyClient", //Kepp this syntax
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ProductUri = "OpcUaClient",
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ServerConfiguration = new ServerConfiguration
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{
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MaxSubscriptionCount = 100000,
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MaxMessageQueueSize = 1000000,
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MaxNotificationQueueSize = 1000000,
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MaxPublishRequestCount = 10000000,
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},
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SecurityConfiguration = new SecurityConfiguration
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{
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AutoAcceptUntrustedCertificates = true,
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RejectSHA1SignedCertificates = false,
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MinimumCertificateKeySize = 1024,
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SuppressNonceValidationErrors = true,
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ApplicationCertificate = new CertificateIdentifier
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{
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StoreType = CertificateStoreType.X509Store,
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StorePath = "CurrentUser\\My",
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SubjectName = OpcUaName,
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},
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TrustedIssuerCertificates = new CertificateTrustList
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{
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StoreType = CertificateStoreType.X509Store,
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StorePath = "CurrentUser\\Root",
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},
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TrustedPeerCertificates = new CertificateTrustList
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{
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StoreType = CertificateStoreType.X509Store,
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StorePath = "CurrentUser\\Root",
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}
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},
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TransportQuotas = new TransportQuotas
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{
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OperationTimeout = 6000000,
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MaxStringLength = int.MaxValue,
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MaxByteStringLength = int.MaxValue,
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MaxArrayLength = 65535,
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MaxMessageSize = 419430400,
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MaxBufferSize = 65535,
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ChannelLifetime = -1,
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SecurityTokenLifetime = -1
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},
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ClientConfiguration = new ClientConfiguration
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{
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DefaultSessionTimeout = -1,
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MinSubscriptionLifetime = -1,
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},
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DisableHiResClock = true
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};
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configuration.Validate(ApplicationType.Client);
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m_configuration = configuration;
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}
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#endregion Constructors
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#region Connect And Disconnect
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/// <summary>
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/// connect to server
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/// </summary>
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/// <param name="serverUrl">remote url</param>
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public async Task ConnectServer(string serverUrl)
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{
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m_session = await Connect(serverUrl);
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}
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/// <summary>
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/// Creates a new session.
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/// </summary>
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/// <returns>The new session object.</returns>
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private async Task<Session> Connect(string serverUrl)
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{
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// disconnect from existing session.
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Disconnect();
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if (m_configuration == null)
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{
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throw new ArgumentNullException("_configuration");
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}
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// select the best endpoint.
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EndpointDescription endpointDescription = CoreClientUtils.SelectEndpoint(serverUrl, UseSecurity);
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EndpointConfiguration endpointConfiguration = EndpointConfiguration.Create(m_configuration);
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ConfiguredEndpoint endpoint = new ConfiguredEndpoint(null, endpointDescription, endpointConfiguration);
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m_session = await Session.Create(
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m_configuration,
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endpoint,
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false,
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false,
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(string.IsNullOrEmpty(OpcUaName)) ? m_configuration.ApplicationName : OpcUaName,
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60000,
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UserIdentity,
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new string[] { });
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// set up keep alive callback.
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m_session.KeepAlive += new KeepAliveEventHandler(Session_KeepAlive);
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// update the client status
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m_IsConnected = true;
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// raise an event.
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DoConnectComplete(null);
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// return the new session.
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return m_session;
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}
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/// <summary>
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/// Disconnects from the server.
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/// </summary>
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public void Disconnect()
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{
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UpdateStatus(false, DateTime.UtcNow, "Disconnected");
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// stop any reconnect operation.
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if (m_reConnectHandler != null)
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{
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m_reConnectHandler.Dispose();
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m_reConnectHandler = null;
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}
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// disconnect any existing session.
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if (m_session != null)
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{
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m_session.Close(10000);
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m_session = null;
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}
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// update the client status
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m_IsConnected = false;
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// raise an event.
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DoConnectComplete(null);
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}
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#endregion Connect And Disconnect
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#region Event Handlers
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/// <summary>
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/// Report the client status
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/// </summary>
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/// <param name="error">Whether the status represents an error.</param>
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/// <param name="time">The time associated with the status.</param>
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/// <param name="status">The status message.</param>
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/// <param name="args">Arguments used to format the status message.</param>
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private void UpdateStatus(bool error, DateTime time, string status, params object[] args)
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{
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m_OpcStatusChange?.Invoke(this, new OpcUaStatusEventArgs()
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{
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Error = error,
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Time = time.ToLocalTime(),
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Text = String.Format(status, args),
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});
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}
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/// <summary>
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/// Handles a keep alive event from a session.
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/// </summary>
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private void Session_KeepAlive(Session session, KeepAliveEventArgs e)
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{
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try
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{
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// check for events from discarded sessions.
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if (!Object.ReferenceEquals(session, m_session))
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{
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return;
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}
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// start reconnect sequence on communication error.
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if (ServiceResult.IsBad(e.Status))
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{
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if (m_reconnectPeriod <= 0)
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{
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UpdateStatus(true, e.CurrentTime, "Communication Error ({0})", e.Status);
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return;
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}
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UpdateStatus(true, e.CurrentTime, "Reconnecting in {0}s", m_reconnectPeriod);
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if (m_reConnectHandler == null)
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{
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m_ReconnectStarting?.Invoke(this, e);
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m_reConnectHandler = new SessionReconnectHandler();
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m_reConnectHandler.BeginReconnect(m_session, m_reconnectPeriod * 1000, Server_ReconnectComplete);
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}
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return;
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}
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// update status.
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UpdateStatus(false, e.CurrentTime, "Connected [{0}]", session.Endpoint.EndpointUrl);
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// raise any additional notifications.
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m_KeepAliveComplete?.Invoke(this, e);
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}
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catch (Exception exception)
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{
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ClientUtils.HandleException(OpcUaName, exception);
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}
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}
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/// <summary>
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/// Handles a reconnect event complete from the reconnect handler.
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/// </summary>
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private void Server_ReconnectComplete(object sender, EventArgs e)
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{
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try
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{
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// ignore callbacks from discarded objects.
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if (!Object.ReferenceEquals(sender, m_reConnectHandler))
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{
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return;
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}
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m_session = m_reConnectHandler.Session;
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m_reConnectHandler.Dispose();
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m_reConnectHandler = null;
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// raise any additional notifications.
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m_ReconnectComplete?.Invoke(this, e);
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}
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catch (Exception exception)
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{
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#if !NETSTANDARD2_0 && !NETSTANDARD2_1
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ClientUtils.HandleException(OpcUaName, exception);
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#else
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throw;
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#endif
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}
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}
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#endregion Event Handlers
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#region LogOut Setting
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/// <summary>
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/// 设置OPC客户端的日志输出
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/// </summary>
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/// <param name="filePath">完整的文件路径</param>
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/// <param name="deleteExisting">是否删除原文件</param>
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public void SetLogPathName(string filePath, bool deleteExisting)
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{
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Utils.SetTraceLog(filePath, deleteExisting);
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Utils.SetTraceMask(515);
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}
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#endregion LogOut Setting
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#region Public Members
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/// <summary>
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/// a name of application name show on server
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/// </summary>
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public string OpcUaName { get; set; } = "Opc Ua Helper";
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/// <summary>
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/// Whether to use security when connecting.
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/// </summary>
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public bool UseSecurity
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{
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get { return m_useSecurity; }
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set { m_useSecurity = value; }
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}
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/// <summary>
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/// The user identity to use when creating the session.
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/// </summary>
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public IUserIdentity UserIdentity { get; set; }
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/// <summary>
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/// The currently active session.
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/// </summary>
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public Session Session
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{
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get { return m_session; }
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}
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/// <summary>
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/// Indicate the connect status
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/// </summary>
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public bool Connected
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{
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get { return m_IsConnected; }
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}
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/// <summary>
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/// The number of seconds between reconnect attempts (0 means reconnect is disabled).
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/// </summary>
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public int ReconnectPeriod
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{
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get { return m_reconnectPeriod; }
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set { m_reconnectPeriod = value; }
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}
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/// <summary>
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/// Raised when a good keep alive from the server arrives.
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/// </summary>
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public event EventHandler KeepAliveComplete
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{
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add { m_KeepAliveComplete += value; }
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remove { m_KeepAliveComplete -= value; }
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}
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/// <summary>
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/// Raised when a reconnect operation starts.
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/// </summary>
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public event EventHandler ReconnectStarting
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{
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add { m_ReconnectStarting += value; }
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remove { m_ReconnectStarting -= value; }
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}
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/// <summary>
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/// Raised when a reconnect operation completes.
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/// </summary>
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public event EventHandler ReconnectComplete
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{
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add { m_ReconnectComplete += value; }
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remove { m_ReconnectComplete -= value; }
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}
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/// <summary>
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/// Raised after successfully connecting to or disconnecing from a server.
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/// </summary>
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public event EventHandler ConnectComplete
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{
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add { m_ConnectComplete += value; }
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remove { m_ConnectComplete -= value; }
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}
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/// <summary>
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/// Raised after the client status change
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/// </summary>
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public event EventHandler<OpcUaStatusEventArgs> OpcStatusChange
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{
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add { m_OpcStatusChange += value; }
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remove { m_OpcStatusChange -= value; }
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}
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/// <summary>
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/// 配置信息
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/// </summary>
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||
public ApplicationConfiguration AppConfig => m_configuration;
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#endregion Public Members
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||
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#region Node Write/Read Support
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||
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/// <summary>
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/// Read a value node from server
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/// </summary>
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/// <param name="nodeId">node id</param>
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/// <returns>DataValue</returns>
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public DataValue ReadNode(NodeId nodeId)
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{
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||
ReadValueIdCollection nodesToRead = new ReadValueIdCollection
|
||
{
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new ReadValueId( )
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{
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||
NodeId = nodeId,
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AttributeId = Attributes.Value
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||
}
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};
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// read the current value
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m_session.Read(
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null,
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||
0,
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TimestampsToReturn.Neither,
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||
nodesToRead,
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||
out DataValueCollection results,
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||
out DiagnosticInfoCollection diagnosticInfos);
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||
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ClientBase.ValidateResponse(results, nodesToRead);
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||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
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||
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||
return results[0];
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||
}
|
||
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/// <summary>
|
||
/// Read a value node from server
|
||
/// </summary>
|
||
/// <typeparam name="T">type of value</typeparam>
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||
/// <param name="tag">node id</param>
|
||
/// <returns>实际值</returns>
|
||
public T ReadNode<T>(string tag)
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||
{
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||
DataValue dataValue = ReadNode(new NodeId(tag));
|
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return (T)dataValue.Value;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Read a tag asynchronously
|
||
/// </summary>
|
||
/// <typeparam name="T">The type of tag to read</typeparam>
|
||
/// <param name="tag">tag值</param>
|
||
/// <returns>The value retrieved from the OPC</returns>
|
||
public Task<T> ReadNodeAsync<T>(string tag)
|
||
{
|
||
ReadValueIdCollection nodesToRead = new ReadValueIdCollection
|
||
{
|
||
new ReadValueId()
|
||
{
|
||
NodeId = new NodeId(tag),
|
||
AttributeId = Attributes.Value
|
||
}
|
||
};
|
||
|
||
// Wrap the ReadAsync logic in a TaskCompletionSource, so we can use C# async/await syntax to call it:
|
||
var taskCompletionSource = new TaskCompletionSource<T>();
|
||
m_session.BeginRead(
|
||
requestHeader: null,
|
||
maxAge: 0,
|
||
timestampsToReturn: TimestampsToReturn.Neither,
|
||
nodesToRead: nodesToRead,
|
||
callback: ar =>
|
||
{
|
||
DataValueCollection results;
|
||
DiagnosticInfoCollection diag;
|
||
var response = m_session.EndRead(
|
||
result: ar,
|
||
results: out results,
|
||
diagnosticInfos: out diag);
|
||
|
||
try
|
||
{
|
||
CheckReturnValue(response.ServiceResult);
|
||
CheckReturnValue(results[0].StatusCode);
|
||
var val = results[0];
|
||
taskCompletionSource.TrySetResult((T)val.Value);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
taskCompletionSource.TrySetException(ex);
|
||
}
|
||
},
|
||
asyncState: null);
|
||
|
||
return taskCompletionSource.Task;
|
||
}
|
||
|
||
/// <summary>
|
||
/// read several value nodes from server
|
||
/// </summary>
|
||
/// <param name="nodeIds">all NodeIds</param>
|
||
/// <returns>all values</returns>
|
||
public List<DataValue> ReadNodes(NodeId[] nodeIds)
|
||
{
|
||
ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
|
||
for (int i = 0; i < nodeIds.Length; i++)
|
||
{
|
||
nodesToRead.Add(new ReadValueId()
|
||
{
|
||
NodeId = nodeIds[i],
|
||
AttributeId = Attributes.Value
|
||
});
|
||
}
|
||
|
||
// 读取当前的值
|
||
m_session.Read(
|
||
null,
|
||
0,
|
||
TimestampsToReturn.Neither,
|
||
nodesToRead,
|
||
out DataValueCollection results,
|
||
out DiagnosticInfoCollection diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, nodesToRead);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
|
||
|
||
return results.ToList();
|
||
}
|
||
|
||
/// <summary>
|
||
/// read several value nodes from server
|
||
/// </summary>
|
||
/// <param name="nodeIds">all NodeIds</param>
|
||
/// <returns>all values</returns>
|
||
public Task<List<DataValue>> ReadNodesAsync(NodeId[] nodeIds)
|
||
{
|
||
ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
|
||
for (int i = 0; i < nodeIds.Length; i++)
|
||
{
|
||
nodesToRead.Add(new ReadValueId()
|
||
{
|
||
NodeId = nodeIds[i],
|
||
AttributeId = Attributes.Value
|
||
});
|
||
}
|
||
|
||
var taskCompletionSource = new TaskCompletionSource<List<DataValue>>();
|
||
// 读取当前的值
|
||
m_session.BeginRead(
|
||
null,
|
||
0,
|
||
TimestampsToReturn.Neither,
|
||
nodesToRead,
|
||
callback: ar =>
|
||
{
|
||
DataValueCollection results;
|
||
DiagnosticInfoCollection diag;
|
||
var response = m_session.EndRead(
|
||
result: ar,
|
||
results: out results,
|
||
diagnosticInfos: out diag);
|
||
|
||
try
|
||
{
|
||
CheckReturnValue(response.ServiceResult);
|
||
taskCompletionSource.TrySetResult(results.ToList());
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
taskCompletionSource.TrySetException(ex);
|
||
}
|
||
},
|
||
asyncState: null);
|
||
|
||
return taskCompletionSource.Task;
|
||
}
|
||
|
||
/// <summary>
|
||
/// read several value nodes from server
|
||
/// </summary>
|
||
/// <param name="tags">所以的节点数组信息</param>
|
||
/// <returns>all values</returns>
|
||
public List<T> ReadNodes<T>(string[] tags)
|
||
{
|
||
List<T> result = new List<T>();
|
||
ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
|
||
for (int i = 0; i < tags.Length; i++)
|
||
{
|
||
nodesToRead.Add(new ReadValueId()
|
||
{
|
||
NodeId = new NodeId(tags[i]),
|
||
AttributeId = Attributes.Value
|
||
});
|
||
}
|
||
|
||
// 读取当前的值
|
||
m_session.Read(
|
||
null,
|
||
0,
|
||
TimestampsToReturn.Neither,
|
||
nodesToRead,
|
||
out DataValueCollection results,
|
||
out DiagnosticInfoCollection diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, nodesToRead);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
|
||
|
||
foreach (var item in results)
|
||
{
|
||
result.Add((T)item.Value);
|
||
}
|
||
return result;
|
||
}
|
||
|
||
/// <summary>
|
||
/// read several value nodes from server
|
||
/// </summary>
|
||
/// <param name="tags">all NodeIds</param>
|
||
/// <returns>all values</returns>
|
||
public Task<List<T>> ReadNodesAsync<T>(string[] tags)
|
||
{
|
||
ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
|
||
for (int i = 0; i < tags.Length; i++)
|
||
{
|
||
nodesToRead.Add(new ReadValueId()
|
||
{
|
||
NodeId = new NodeId(tags[i]),
|
||
AttributeId = Attributes.Value
|
||
});
|
||
}
|
||
|
||
var taskCompletionSource = new TaskCompletionSource<List<T>>();
|
||
// 读取当前的值
|
||
m_session.BeginRead(
|
||
null,
|
||
0,
|
||
TimestampsToReturn.Neither,
|
||
nodesToRead,
|
||
callback: ar =>
|
||
{
|
||
DataValueCollection results;
|
||
DiagnosticInfoCollection diag;
|
||
var response = m_session.EndRead(
|
||
result: ar,
|
||
results: out results,
|
||
diagnosticInfos: out diag);
|
||
|
||
try
|
||
{
|
||
CheckReturnValue(response.ServiceResult);
|
||
List<T> result = new List<T>();
|
||
foreach (var item in results)
|
||
{
|
||
result.Add((T)item.Value);
|
||
}
|
||
taskCompletionSource.TrySetResult(result);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
taskCompletionSource.TrySetException(ex);
|
||
}
|
||
},
|
||
asyncState: null);
|
||
|
||
return taskCompletionSource.Task;
|
||
}
|
||
|
||
/// <summary>
|
||
/// write a note to server(you should use try catch)
|
||
/// </summary>
|
||
/// <typeparam name="T">The type of tag to write on</typeparam>
|
||
/// <param name="tag">节点名称</param>
|
||
/// <param name="value">值</param>
|
||
/// <returns>if success True,otherwise False</returns>
|
||
public bool WriteNode<T>(string tag, T value)
|
||
{
|
||
WriteValue valueToWrite = new WriteValue()
|
||
{
|
||
NodeId = new NodeId(tag),
|
||
AttributeId = Attributes.Value
|
||
};
|
||
valueToWrite.Value.Value = value;
|
||
valueToWrite.Value.StatusCode = StatusCodes.Good;
|
||
valueToWrite.Value.ServerTimestamp = DateTime.MinValue;
|
||
valueToWrite.Value.SourceTimestamp = DateTime.MinValue;
|
||
|
||
WriteValueCollection valuesToWrite = new WriteValueCollection
|
||
{
|
||
valueToWrite
|
||
};
|
||
|
||
// 写入当前的值
|
||
|
||
m_session.Write(
|
||
null,
|
||
valuesToWrite,
|
||
out StatusCodeCollection results,
|
||
out DiagnosticInfoCollection diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, valuesToWrite);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, valuesToWrite);
|
||
|
||
if (StatusCode.IsBad(results[0]))
|
||
{
|
||
throw new ServiceResultException(results[0]);
|
||
}
|
||
|
||
return !StatusCode.IsBad(results[0]);
|
||
}
|
||
|
||
/// <summary>
|
||
/// Write a value on the specified opc tag asynchronously
|
||
/// </summary>
|
||
/// <typeparam name="T">The type of tag to write on</typeparam>
|
||
/// <param name="tag">The fully-qualified identifier of the tag. You can specify a subfolder by using a comma delimited name. E.g: the tag `foo.bar` writes on the tag `bar` on the folder `foo`</param>
|
||
/// <param name="value">The value for the item to write</param>
|
||
public Task<bool> WriteNodeAsync<T>(string tag, T value)
|
||
{
|
||
WriteValue valueToWrite = new WriteValue()
|
||
{
|
||
NodeId = new NodeId(tag),
|
||
AttributeId = Attributes.Value,
|
||
};
|
||
valueToWrite.Value.Value = value;
|
||
valueToWrite.Value.StatusCode = StatusCodes.Good;
|
||
valueToWrite.Value.ServerTimestamp = DateTime.MinValue;
|
||
valueToWrite.Value.SourceTimestamp = DateTime.MinValue;
|
||
WriteValueCollection valuesToWrite = new WriteValueCollection
|
||
{
|
||
valueToWrite
|
||
};
|
||
|
||
// Wrap the WriteAsync logic in a TaskCompletionSource, so we can use C# async/await syntax to call it:
|
||
var taskCompletionSource = new TaskCompletionSource<bool>();
|
||
m_session.BeginWrite(
|
||
requestHeader: null,
|
||
nodesToWrite: valuesToWrite,
|
||
callback: ar =>
|
||
{
|
||
var response = m_session.EndWrite(
|
||
result: ar,
|
||
results: out StatusCodeCollection results,
|
||
diagnosticInfos: out DiagnosticInfoCollection diag);
|
||
|
||
try
|
||
{
|
||
ClientBase.ValidateResponse(results, valuesToWrite);
|
||
ClientBase.ValidateDiagnosticInfos(diag, valuesToWrite);
|
||
taskCompletionSource.SetResult(StatusCode.IsGood(results[0]));
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
taskCompletionSource.TrySetException(ex);
|
||
}
|
||
},
|
||
asyncState: null);
|
||
return taskCompletionSource.Task;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 所有的节点都写入成功，返回<c>True</c>，否则返回<c>False</c>
|
||
/// </summary>
|
||
/// <param name="tags">节点名称数组</param>
|
||
/// <param name="values">节点的值数据</param>
|
||
/// <returns>所有的是否都写入成功</returns>
|
||
public bool WriteNodes(string[] tags, object[] values)
|
||
{
|
||
WriteValueCollection valuesToWrite = new WriteValueCollection();
|
||
|
||
for (int i = 0; i < tags.Length; i++)
|
||
{
|
||
if (i < values.Length)
|
||
{
|
||
WriteValue valueToWrite = new WriteValue()
|
||
{
|
||
NodeId = new NodeId(tags[i]),
|
||
AttributeId = Attributes.Value
|
||
};
|
||
valueToWrite.Value.Value = values[i];
|
||
valueToWrite.Value.StatusCode = StatusCodes.Good;
|
||
valueToWrite.Value.ServerTimestamp = DateTime.MinValue;
|
||
valueToWrite.Value.SourceTimestamp = DateTime.MinValue;
|
||
valuesToWrite.Add(valueToWrite);
|
||
}
|
||
}
|
||
|
||
// 写入当前的值
|
||
|
||
m_session.Write(
|
||
null,
|
||
valuesToWrite,
|
||
out StatusCodeCollection results,
|
||
out DiagnosticInfoCollection diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, valuesToWrite);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, valuesToWrite);
|
||
|
||
bool result = true;
|
||
foreach (var r in results)
|
||
{
|
||
if (StatusCode.IsBad(r))
|
||
{
|
||
result = false;
|
||
break;
|
||
}
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
#endregion Node Write/Read Support
|
||
|
||
#region DeleteNode Support
|
||
|
||
/// <summary>
|
||
/// 删除一个节点的操作，除非服务器配置允许，否则引发异常，成功返回<c>True</c>，否则返回<c>False</c>
|
||
/// </summary>
|
||
/// <param name="tag">节点文本描述</param>
|
||
/// <returns>是否删除成功</returns>
|
||
public bool DeleteExsistNode(string tag)
|
||
{
|
||
DeleteNodesItemCollection waitDelete = new DeleteNodesItemCollection();
|
||
|
||
DeleteNodesItem nodesItem = new DeleteNodesItem()
|
||
{
|
||
NodeId = new NodeId(tag),
|
||
};
|
||
|
||
m_session.DeleteNodes(
|
||
null,
|
||
waitDelete,
|
||
out StatusCodeCollection results,
|
||
out DiagnosticInfoCollection diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, waitDelete);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, waitDelete);
|
||
|
||
return !StatusCode.IsBad(results[0]);
|
||
}
|
||
|
||
#endregion DeleteNode Support
|
||
|
||
#region Test Function
|
||
|
||
/// <summary>
|
||
/// 新增一个节点数据
|
||
/// </summary>
|
||
/// <param name="parent">父节点tag名称</param>
|
||
[Obsolete("还未经过测试，无法使用")]
|
||
public void AddNewNode(NodeId parent)
|
||
{
|
||
// Create a Variable node.
|
||
AddNodesItem node2 = new AddNodesItem();
|
||
node2.ParentNodeId = new NodeId(parent);
|
||
node2.ReferenceTypeId = ReferenceTypes.HasComponent;
|
||
node2.RequestedNewNodeId = null;
|
||
node2.BrowseName = new QualifiedName("DataVariable1");
|
||
node2.NodeClass = NodeClass.Variable;
|
||
node2.NodeAttributes = null;
|
||
node2.TypeDefinition = VariableTypeIds.BaseDataVariableType;
|
||
|
||
//specify node attributes.
|
||
VariableAttributes node2Attribtues = new VariableAttributes();
|
||
node2Attribtues.DisplayName = "DataVariable1";
|
||
node2Attribtues.Description = "DataVariable1 Description";
|
||
node2Attribtues.Value = new Variant(123);
|
||
node2Attribtues.DataType = (uint)BuiltInType.Int32;
|
||
node2Attribtues.ValueRank = ValueRanks.Scalar;
|
||
node2Attribtues.ArrayDimensions = new UInt32Collection();
|
||
node2Attribtues.AccessLevel = AccessLevels.CurrentReadOrWrite;
|
||
node2Attribtues.UserAccessLevel = AccessLevels.CurrentReadOrWrite;
|
||
node2Attribtues.MinimumSamplingInterval = 0;
|
||
node2Attribtues.Historizing = false;
|
||
node2Attribtues.WriteMask = (uint)AttributeWriteMask.None;
|
||
node2Attribtues.UserWriteMask = (uint)AttributeWriteMask.None;
|
||
node2Attribtues.SpecifiedAttributes = (uint)NodeAttributesMask.All;
|
||
|
||
node2.NodeAttributes = new ExtensionObject(node2Attribtues);
|
||
|
||
AddNodesItemCollection nodesToAdd = new AddNodesItemCollection { node2 };
|
||
|
||
m_session.AddNodes(
|
||
null,
|
||
nodesToAdd,
|
||
out AddNodesResultCollection results,
|
||
out DiagnosticInfoCollection diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, nodesToAdd);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToAdd);
|
||
}
|
||
|
||
#endregion Test Function
|
||
|
||
#region Monitor Support
|
||
|
||
/// <summary>
|
||
/// 新增一个订阅，需要指定订阅的关键字，订阅的tag名，以及回调方法
|
||
/// </summary>
|
||
/// <param name="key">关键字</param>
|
||
/// <param name="tag">tag</param>
|
||
/// <param name="callback">回调方法</param>
|
||
public void AddSubscription(string key, string tag, Action<string, MonitoredItem, MonitoredItemNotificationEventArgs> callback)
|
||
{
|
||
AddSubscription(key, new string[] { tag }, callback);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 新增一批订阅，需要指定订阅的关键字，订阅的tag名数组，以及回调方法
|
||
/// </summary>
|
||
/// <param name="key">关键字</param>
|
||
/// <param name="tags">节点名称数组</param>
|
||
/// <param name="callback">回调方法</param>
|
||
public void AddSubscription(string key, string[] tags, Action<string, MonitoredItem, MonitoredItemNotificationEventArgs> callback)
|
||
{
|
||
Subscription m_subscription = new Subscription(m_session.DefaultSubscription);
|
||
|
||
m_subscription.PublishingEnabled = true;
|
||
m_subscription.PublishingInterval = 0;
|
||
m_subscription.KeepAliveCount = uint.MaxValue;
|
||
m_subscription.LifetimeCount = uint.MaxValue;
|
||
m_subscription.MaxNotificationsPerPublish = uint.MaxValue;
|
||
m_subscription.Priority = 100;
|
||
m_subscription.DisplayName = key;
|
||
|
||
for (int i = 0; i < tags.Length; i++)
|
||
{
|
||
var item = new MonitoredItem
|
||
{
|
||
StartNodeId = new NodeId(tags[i]),
|
||
AttributeId = Attributes.Value,
|
||
DisplayName = tags[i],
|
||
SamplingInterval = 100,
|
||
};
|
||
item.Notification += (MonitoredItem monitoredItem, MonitoredItemNotificationEventArgs args) =>
|
||
{
|
||
callback?.Invoke(key, monitoredItem, args);
|
||
};
|
||
m_subscription.AddItem(item);
|
||
}
|
||
|
||
m_session.AddSubscription(m_subscription);
|
||
m_subscription.Create();
|
||
|
||
lock (dic_subscriptions)
|
||
{
|
||
if (dic_subscriptions.ContainsKey(key))
|
||
{
|
||
// remove
|
||
dic_subscriptions[key].Delete(true);
|
||
m_session.RemoveSubscription(dic_subscriptions[key]);
|
||
dic_subscriptions[key].Dispose();
|
||
dic_subscriptions[key] = m_subscription;
|
||
}
|
||
else
|
||
{
|
||
dic_subscriptions.Add(key, m_subscription);
|
||
}
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 移除订阅消息，如果该订阅消息是批量的，也直接移除
|
||
/// </summary>
|
||
/// <param name="key">订阅关键值</param>
|
||
public void RemoveSubscription(string key)
|
||
{
|
||
lock (dic_subscriptions)
|
||
{
|
||
if (dic_subscriptions.ContainsKey(key))
|
||
{
|
||
// remove
|
||
dic_subscriptions[key].Delete(true);
|
||
m_session.RemoveSubscription(dic_subscriptions[key]);
|
||
dic_subscriptions[key].Dispose();
|
||
dic_subscriptions.Remove(key);
|
||
}
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 移除所有的订阅消息
|
||
/// </summary>
|
||
public void RemoveAllSubscription()
|
||
{
|
||
lock (dic_subscriptions)
|
||
{
|
||
foreach (var item in dic_subscriptions)
|
||
{
|
||
item.Value.Delete(true);
|
||
m_session.RemoveSubscription(item.Value);
|
||
item.Value.Dispose();
|
||
}
|
||
dic_subscriptions.Clear();
|
||
}
|
||
}
|
||
|
||
#endregion Monitor Support
|
||
|
||
#region ReadHistory Support
|
||
|
||
/// <summary>
|
||
/// read History data
|
||
/// </summary>
|
||
/// <param name="tag">节点的索引</param>
|
||
/// <param name="start">开始时间</param>
|
||
/// <param name="end">结束时间</param>
|
||
/// <param name="count">读取的个数</param>
|
||
/// <param name="containBound">是否包含边界</param>
|
||
/// <returns>读取的数据列表</returns>
|
||
public IEnumerable<DataValue> ReadHistoryRawDataValues(string tag, DateTime start, DateTime end, uint count = 1, bool containBound = false)
|
||
{
|
||
HistoryReadValueId m_nodeToContinue = new HistoryReadValueId()
|
||
{
|
||
NodeId = new NodeId(tag),
|
||
};
|
||
|
||
ReadRawModifiedDetails m_details = new ReadRawModifiedDetails
|
||
{
|
||
StartTime = start,
|
||
EndTime = end,
|
||
NumValuesPerNode = count,
|
||
IsReadModified = false,
|
||
ReturnBounds = containBound
|
||
};
|
||
|
||
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
|
||
nodesToRead.Add(m_nodeToContinue);
|
||
|
||
m_session.HistoryRead(
|
||
null,
|
||
new ExtensionObject(m_details),
|
||
TimestampsToReturn.Both,
|
||
false,
|
||
nodesToRead,
|
||
out HistoryReadResultCollection results,
|
||
out DiagnosticInfoCollection diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, nodesToRead);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
|
||
|
||
if (StatusCode.IsBad(results[0].StatusCode))
|
||
{
|
||
throw new ServiceResultException(results[0].StatusCode);
|
||
}
|
||
|
||
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
|
||
foreach (var value in values.DataValues)
|
||
{
|
||
yield return value;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 读取一连串的历史数据，并将其转化成指定的类型
|
||
/// </summary>
|
||
/// <param name="tag">节点的索引</param>
|
||
/// <param name="start">开始时间</param>
|
||
/// <param name="end">结束时间</param>
|
||
/// <param name="count">读取的个数</param>
|
||
/// <param name="containBound">是否包含边界</param>
|
||
/// <returns>读取的数据列表</returns>
|
||
public IEnumerable<T> ReadHistoryRawDataValues<T>(string tag, DateTime start, DateTime end, uint count = 1, bool containBound = false)
|
||
{
|
||
HistoryReadValueId m_nodeToContinue = new HistoryReadValueId()
|
||
{
|
||
NodeId = new NodeId(tag),
|
||
};
|
||
|
||
ReadRawModifiedDetails m_details = new ReadRawModifiedDetails
|
||
{
|
||
StartTime = start.ToUniversalTime(),
|
||
EndTime = end.ToUniversalTime(),
|
||
NumValuesPerNode = count,
|
||
IsReadModified = false,
|
||
ReturnBounds = containBound
|
||
};
|
||
|
||
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
|
||
nodesToRead.Add(m_nodeToContinue);
|
||
|
||
m_session.HistoryRead(
|
||
null,
|
||
new ExtensionObject(m_details),
|
||
TimestampsToReturn.Both,
|
||
false,
|
||
nodesToRead,
|
||
out HistoryReadResultCollection results,
|
||
out DiagnosticInfoCollection diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, nodesToRead);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
|
||
|
||
if (StatusCode.IsBad(results[0].StatusCode))
|
||
{
|
||
throw new ServiceResultException(results[0].StatusCode);
|
||
}
|
||
|
||
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
|
||
foreach (var value in values.DataValues)
|
||
{
|
||
yield return (T)value.Value;
|
||
}
|
||
}
|
||
|
||
#endregion ReadHistory Support
|
||
|
||
#region BrowseNode Support
|
||
|
||
/// <summary>
|
||
/// 浏览一个节点的引用
|
||
/// </summary>
|
||
/// <param name="tag">节点值</param>
|
||
/// <returns>引用节点描述</returns>
|
||
public ReferenceDescription[] BrowseNodeReference(string tag)
|
||
{
|
||
NodeId sourceId = new NodeId(tag);
|
||
|
||
// 该节点可以读取到方法
|
||
BrowseDescription nodeToBrowse1 = new BrowseDescription();
|
||
|
||
nodeToBrowse1.NodeId = sourceId;
|
||
nodeToBrowse1.BrowseDirection = BrowseDirection.Forward;
|
||
nodeToBrowse1.ReferenceTypeId = ReferenceTypeIds.Aggregates;
|
||
nodeToBrowse1.IncludeSubtypes = true;
|
||
nodeToBrowse1.NodeClassMask = (uint)(NodeClass.Object | NodeClass.Variable | NodeClass.Method);
|
||
nodeToBrowse1.ResultMask = (uint)BrowseResultMask.All;
|
||
|
||
// 该节点无论怎么样都读取不到方法
|
||
// find all nodes organized by the node.
|
||
BrowseDescription nodeToBrowse2 = new BrowseDescription();
|
||
|
||
nodeToBrowse2.NodeId = sourceId;
|
||
nodeToBrowse2.BrowseDirection = BrowseDirection.Forward;
|
||
nodeToBrowse2.ReferenceTypeId = ReferenceTypeIds.Organizes;
|
||
nodeToBrowse2.IncludeSubtypes = true;
|
||
nodeToBrowse2.NodeClassMask = (uint)(NodeClass.Object | NodeClass.Variable);
|
||
nodeToBrowse2.ResultMask = (uint)BrowseResultMask.All;
|
||
|
||
BrowseDescriptionCollection nodesToBrowse = new BrowseDescriptionCollection();
|
||
nodesToBrowse.Add(nodeToBrowse1);
|
||
nodesToBrowse.Add(nodeToBrowse2);
|
||
|
||
// fetch references from the server.
|
||
ReferenceDescriptionCollection references = FormUtils.Browse(m_session, nodesToBrowse, false);
|
||
|
||
return references.ToArray();
|
||
}
|
||
|
||
#endregion BrowseNode Support
|
||
|
||
#region Read Attributes Support
|
||
|
||
/// <summary>
|
||
/// 读取一个节点的所有属性
|
||
/// </summary>
|
||
/// <param name="tag">节点信息</param>
|
||
/// <returns>节点的特性值</returns>
|
||
public OpcNodeAttribute[] ReadNoteAttributes(string tag)
|
||
{
|
||
NodeId sourceId = new NodeId(tag);
|
||
ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
|
||
|
||
// attempt to read all possible attributes.
|
||
// 尝试着去读取所有可能的特性
|
||
for (uint ii = Attributes.NodeClass; ii <= Attributes.UserExecutable; ii++)
|
||
{
|
||
ReadValueId nodeToRead = new ReadValueId();
|
||
nodeToRead.NodeId = sourceId;
|
||
nodeToRead.AttributeId = ii;
|
||
nodesToRead.Add(nodeToRead);
|
||
}
|
||
|
||
int startOfProperties = nodesToRead.Count;
|
||
|
||
// find all of the pror of the node.
|
||
BrowseDescription nodeToBrowse1 = new BrowseDescription();
|
||
|
||
nodeToBrowse1.NodeId = sourceId;
|
||
nodeToBrowse1.BrowseDirection = BrowseDirection.Forward;
|
||
nodeToBrowse1.ReferenceTypeId = ReferenceTypeIds.HasProperty;
|
||
nodeToBrowse1.IncludeSubtypes = true;
|
||
nodeToBrowse1.NodeClassMask = 0;
|
||
nodeToBrowse1.ResultMask = (uint)BrowseResultMask.All;
|
||
|
||
BrowseDescriptionCollection nodesToBrowse = new BrowseDescriptionCollection();
|
||
nodesToBrowse.Add(nodeToBrowse1);
|
||
|
||
// fetch property references from the server.
|
||
ReferenceDescriptionCollection references = FormUtils.Browse(m_session, nodesToBrowse, false);
|
||
|
||
if (references == null)
|
||
{
|
||
return new OpcNodeAttribute[0];
|
||
}
|
||
|
||
for (int ii = 0; ii < references.Count; ii++)
|
||
{
|
||
// ignore external references.
|
||
if (references[ii].NodeId.IsAbsolute)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
ReadValueId nodeToRead = new ReadValueId();
|
||
nodeToRead.NodeId = (NodeId)references[ii].NodeId;
|
||
nodeToRead.AttributeId = Attributes.Value;
|
||
nodesToRead.Add(nodeToRead);
|
||
}
|
||
|
||
// read all values.
|
||
DataValueCollection results = null;
|
||
DiagnosticInfoCollection diagnosticInfos = null;
|
||
|
||
m_session.Read(
|
||
null,
|
||
0,
|
||
TimestampsToReturn.Neither,
|
||
nodesToRead,
|
||
out results,
|
||
out diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, nodesToRead);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
|
||
|
||
// process results.
|
||
|
||
List<OpcNodeAttribute> nodeAttribute = new List<OpcNodeAttribute>();
|
||
for (int ii = 0; ii < results.Count; ii++)
|
||
{
|
||
OpcNodeAttribute item = new OpcNodeAttribute();
|
||
|
||
// process attribute value.
|
||
if (ii < startOfProperties)
|
||
{
|
||
// ignore attributes which are invalid for the node.
|
||
if (results[ii].StatusCode == StatusCodes.BadAttributeIdInvalid)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
// get the name of the attribute.
|
||
item.Name = Attributes.GetBrowseName(nodesToRead[ii].AttributeId);
|
||
|
||
// display any unexpected error.
|
||
if (StatusCode.IsBad(results[ii].StatusCode))
|
||
{
|
||
item.Type = Utils.Format("{0}", Attributes.GetDataTypeId(nodesToRead[ii].AttributeId));
|
||
item.Value = Utils.Format("{0}", results[ii].StatusCode);
|
||
}
|
||
|
||
// display the value.
|
||
else
|
||
{
|
||
TypeInfo typeInfo = TypeInfo.Construct(results[ii].Value);
|
||
|
||
item.Type = typeInfo.BuiltInType.ToString();
|
||
|
||
if (typeInfo.ValueRank >= ValueRanks.OneOrMoreDimensions)
|
||
{
|
||
item.Type += "[]";
|
||
}
|
||
|
||
item.Value = results[ii].Value;//Utils.Format("{0}", results[ii].Value);
|
||
}
|
||
}
|
||
|
||
// process property value.
|
||
else
|
||
{
|
||
// ignore properties which are invalid for the node.
|
||
if (results[ii].StatusCode == StatusCodes.BadNodeIdUnknown)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
// get the name of the property.
|
||
item.Name = Utils.Format("{0}", references[ii - startOfProperties]);
|
||
|
||
// display any unexpected error.
|
||
if (StatusCode.IsBad(results[ii].StatusCode))
|
||
{
|
||
item.Type = String.Empty;
|
||
item.Value = Utils.Format("{0}", results[ii].StatusCode);
|
||
}
|
||
|
||
// display the value.
|
||
else
|
||
{
|
||
TypeInfo typeInfo = TypeInfo.Construct(results[ii].Value);
|
||
|
||
item.Type = typeInfo.BuiltInType.ToString();
|
||
|
||
if (typeInfo.ValueRank >= ValueRanks.OneOrMoreDimensions)
|
||
{
|
||
item.Type += "[]";
|
||
}
|
||
|
||
item.Value = results[ii].Value; //Utils.Format("{0}", results[ii].Value);
|
||
}
|
||
}
|
||
|
||
nodeAttribute.Add(item);
|
||
}
|
||
|
||
return nodeAttribute.ToArray();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 读取一个节点的所有属性
|
||
/// </summary>
|
||
/// <param name="tag">节点值</param>
|
||
/// <returns>所有的数据</returns>
|
||
public DataValue[] ReadNoteDataValueAttributes(string tag)
|
||
{
|
||
NodeId sourceId = new NodeId(tag);
|
||
ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
|
||
|
||
// attempt to read all possible attributes.
|
||
// 尝试着去读取所有可能的特性
|
||
for (uint ii = Attributes.NodeId; ii <= Attributes.UserExecutable; ii++)
|
||
{
|
||
ReadValueId nodeToRead = new ReadValueId();
|
||
nodeToRead.NodeId = sourceId;
|
||
nodeToRead.AttributeId = ii;
|
||
nodesToRead.Add(nodeToRead);
|
||
}
|
||
|
||
int startOfProperties = nodesToRead.Count;
|
||
|
||
// find all of the pror of the node.
|
||
BrowseDescription nodeToBrowse1 = new BrowseDescription();
|
||
|
||
nodeToBrowse1.NodeId = sourceId;
|
||
nodeToBrowse1.BrowseDirection = BrowseDirection.Forward;
|
||
nodeToBrowse1.ReferenceTypeId = ReferenceTypeIds.HasProperty;
|
||
nodeToBrowse1.IncludeSubtypes = true;
|
||
nodeToBrowse1.NodeClassMask = 0;
|
||
nodeToBrowse1.ResultMask = (uint)BrowseResultMask.All;
|
||
|
||
BrowseDescriptionCollection nodesToBrowse = new BrowseDescriptionCollection();
|
||
nodesToBrowse.Add(nodeToBrowse1);
|
||
|
||
// fetch property references from the server.
|
||
ReferenceDescriptionCollection references = FormUtils.Browse(m_session, nodesToBrowse, false);
|
||
|
||
if (references == null)
|
||
{
|
||
return new DataValue[0];
|
||
}
|
||
|
||
for (int ii = 0; ii < references.Count; ii++)
|
||
{
|
||
// ignore external references.
|
||
if (references[ii].NodeId.IsAbsolute)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
ReadValueId nodeToRead = new ReadValueId();
|
||
nodeToRead.NodeId = (NodeId)references[ii].NodeId;
|
||
nodeToRead.AttributeId = Attributes.Value;
|
||
nodesToRead.Add(nodeToRead);
|
||
}
|
||
|
||
// read all values.
|
||
DataValueCollection results = null;
|
||
DiagnosticInfoCollection diagnosticInfos = null;
|
||
|
||
m_session.Read(
|
||
null,
|
||
0,
|
||
TimestampsToReturn.Neither,
|
||
nodesToRead,
|
||
out results,
|
||
out diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, nodesToRead);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
|
||
|
||
return results.ToArray();
|
||
}
|
||
|
||
#endregion Read Attributes Support
|
||
|
||
#region Method Call Support
|
||
|
||
/// <summary>
|
||
/// call a server method
|
||
/// </summary>
|
||
/// <param name="tagParent">方法的父节点tag</param>
|
||
/// <param name="tag">方法的节点tag</param>
|
||
/// <param name="args">传递的参数</param>
|
||
/// <returns>输出的结果值</returns>
|
||
public object[] CallMethodByNodeId(string tagParent, string tag, params object[] args)
|
||
{
|
||
if (m_session == null)
|
||
{
|
||
return null;
|
||
}
|
||
|
||
IList<object> outputArguments = m_session.Call(
|
||
new NodeId(tagParent),
|
||
new NodeId(tag),
|
||
args);
|
||
|
||
return outputArguments.ToArray();
|
||
}
|
||
|
||
#endregion Method Call Support
|
||
|
||
#region Private Methods
|
||
|
||
/// <summary>
|
||
/// Raises the connect complete event on the main GUI thread.
|
||
/// </summary>
|
||
private void DoConnectComplete(object state)
|
||
{
|
||
m_ConnectComplete?.Invoke(this, null);
|
||
}
|
||
|
||
private void CheckReturnValue(StatusCode status)
|
||
{
|
||
if (!StatusCode.IsGood(status))
|
||
throw new Exception(string.Format("Invalid response from the server. (Response Status: {0})", status));
|
||
}
|
||
|
||
#endregion Private Methods
|
||
|
||
#region Private Fields
|
||
|
||
private ApplicationConfiguration m_configuration;
|
||
private Session m_session;
|
||
private bool m_IsConnected; //是否已经连接过
|
||
private int m_reconnectPeriod = 10; // 重连状态
|
||
private bool m_useSecurity;
|
||
|
||
private SessionReconnectHandler m_reConnectHandler;
|
||
private EventHandler m_ReconnectComplete;
|
||
private EventHandler m_ReconnectStarting;
|
||
private EventHandler m_KeepAliveComplete;
|
||
private EventHandler m_ConnectComplete;
|
||
private EventHandler<OpcUaStatusEventArgs> m_OpcStatusChange;
|
||
|
||
private Dictionary<string, Subscription> dic_subscriptions; // 系统所有的节点信息
|
||
|
||
#endregion Private Fields
|
||
}
|
||
} |