临时提交

DMS.Infrastructure/Interfaces/Services/IOpcUaService.cs

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+using Opc.Ua;
+using Opc.Ua.Client;
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace DMS.Infrastructure.Interfaces.Services
+{
+    public interface IOpcUaService
+    {
+        /// <summary>
+        /// 创建 OPC UA 会话
+        /// </summary>
+        /// <param name="opcUaServerUrl">OPC UA 服务器地址</param>
+        /// <param name="stoppingToken">取消令牌</param>
+        /// <returns></returns>
+        public Task CreateSession(string opcUaServerUrl, CancellationToken stoppingToken = default);
+
+        /// <summary>
+        /// 连接到 OPC UA 服务器（异步）
+        /// </summary>
+        /// <param name="stoppingToken">取消令牌</param>
+        /// <returns></returns>
+        public Task ConnectAsync(CancellationToken stoppingToken = default);
+
+        /// <summary>
+        /// 连接到 OPC UA 服务器（同步）
+        /// </summary>
+        public void Connect();
+
+        /// <summary>
+        /// 断开 OPC UA 服务器连接
+        /// </summary>
+        public void Disconnect();
+
+        /// <summary>
+        /// 添加订阅
+        /// </summary>
+        /// <param name="subscriptionName">订阅名称</param>
+        /// <returns>创建的订阅</returns>
+        public Subscription AddSubscription(string subscriptionName);
+
+        /// <summary>
+        /// 浏览节点
+        /// </summary>
+        /// <param name="nodeId">起始节点ID</param>
+        /// <returns>节点引用列表</returns>
+        public IList<ReferenceDescription> BrowseNodes(NodeId nodeId);
+
+        /// <summary>
+        /// 读取节点值
+        /// </summary>
+        /// <param name="nodeId">节点ID</param>
+        /// <returns>节点值</returns>
+        public DataValue ReadValue(NodeId nodeId);
+
+        /// <summary>
+        /// 写入节点值
+        /// </summary>
+        /// <param name="nodeId">节点ID</param>
+        /// <param name="value">要写入的值</param>
+        /// <returns>写入结果</returns>
+        public StatusCode WriteValue(NodeId nodeId, object value);
+
+        /// <summary>
+        /// 检查是否已连接
+        /// </summary>
+        /// <returns></returns>
+        public bool IsConnected();
+    }
+}