1,重新梳理了代码,将使用多线程,并实现了批量读取变量
2,添加OpcUa更新方式的修改对话框 3,修复了一些已知的Bug 4,删除了不必要的函数
This commit is contained in:
@@ -51,48 +51,14 @@ public partial class DataServices : ObservableRecipient, IRecipient<LoadMessage>
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private readonly VarDataRepository _varDataRepository;
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// 设备列表变更事件,当设备列表数据更新时触发。
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public event EventHandler<List<Device>> OnDeviceListChanged;
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public event Action<List<Device>> OnDeviceListChanged;
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// 菜单树列表变更事件,当菜单树数据更新时触发。
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public event EventHandler<List<MenuBean>> OnMenuTreeListChanged;
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public event Action<List<MenuBean>> OnMenuTreeListChanged;
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// MQTT列表变更事件,当MQTT配置数据更新时触发。
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public event EventHandler<List<Mqtt>> OnMqttListChanged;
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public event Action<List<Mqtt>> OnMqttListChanged;
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// 变量数据变更事件,当变量数据更新时触发。
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public event Action<List<VariableData>> OnVariableDataChanged;
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/// <summary>
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/// 当_devices属性值改变时触发的局部方法,用于调用OnDeviceListChanged事件。
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/// </summary>
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/// <param name="devices">新的设备列表。</param>
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partial void OnDevicesChanged(List<Device> devices)
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{
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OnDeviceListChanged?.Invoke(this, devices);
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VariableDatas.Clear();
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foreach (Device device in devices)
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{
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foreach (VariableTable variableTable in device.VariableTables)
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{
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foreach (VariableData variableData in variableTable.DataVariables)
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{
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VariableDatas.Add(variableData);
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}
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}
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}
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OnVariableDataChanged?.Invoke(VariableDatas);
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}
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/// <summary>
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/// 当menuTrees属性值改变时触发的局部方法,用于调用OnMenuTreeListChanged事件。
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/// </summary>
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/// <param name="MenuTrees">新的菜单树列表。</param>
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partial void OnMenuTreesChanged(List<MenuBean> MenuTrees)
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{
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OnMenuTreeListChanged?.Invoke(this, MenuTrees);
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}
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/// <summary>
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/// 当_mqtts属性值改变时触发的局部方法,用于调用OnMqttListChanged事件。
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@@ -100,7 +66,7 @@ public partial class DataServices : ObservableRecipient, IRecipient<LoadMessage>
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/// <param name="mqtts">新的MQTT配置列表。</param>
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partial void OnMqttsChanged(List<Mqtt> mqtts)
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{
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OnMqttListChanged?.Invoke(this, mqtts);
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OnMqttListChanged?.Invoke(mqtts);
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}
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// 注释掉的代码块,可能用于变量数据变更事件的触发,但目前未启用。
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@@ -164,6 +130,7 @@ public partial class DataServices : ObservableRecipient, IRecipient<LoadMessage>
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private async Task LoadDevices()
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{
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Devices = await _deviceRepository.GetAll();
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OnDeviceListChanged?.Invoke(Devices);
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}
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/// <summary>
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@@ -178,6 +145,8 @@ public partial class DataServices : ObservableRecipient, IRecipient<LoadMessage>
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MenuHelper.MenuAddParent(menu); // 为菜单添加父级引用
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DataServicesHelper.SortMenus(menu); // 排序菜单
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}
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OnMenuTreeListChanged?.Invoke(MenuTrees);
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}
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/// <summary>
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@@ -186,7 +155,9 @@ public partial class DataServices : ObservableRecipient, IRecipient<LoadMessage>
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/// <returns>包含所有MQTT配置的列表。</returns>
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public async Task<List<Mqtt>> GetMqttsAsync()
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{
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return await _mqttRepository.GetAll();
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var mqtts = await _mqttRepository.GetAll();
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OnMqttListChanged?.Invoke(mqtts);
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return mqtts;
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}
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/// <summary>
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@@ -188,4 +188,16 @@ public class DialogService :IDialogService
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var result = await dialog.ShowAsync();
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return result == ContentDialogResult.Primary ? vm.GetSelectedVariables().ToList() : null;
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}
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public async Task<OpcUaUpdateType?> ShowOpcUaUpdateTypeDialog()
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{
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var vm = new OpcUaUpdateTypeDialogViewModel();
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var dialog = new OpcUaUpdateTypeDialog(vm);
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var result = await dialog.ShowAsync();
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if (result == ContentDialogResult.Primary)
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{
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return vm.SelectedUpdateType;
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}
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return null;
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}
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}
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@@ -23,4 +23,5 @@ public interface IDialogService
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Task<PollLevelType?> ShowPollLevelDialog(PollLevelType pollLevelType);
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Task<Mqtt?> ShowMqttSelectionDialog();
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Task<List<VariableData>> ShowOpcUaImportDialog(string endpointUrl);
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Task<OpcUaUpdateType?> ShowOpcUaUpdateTypeDialog();
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}
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@@ -55,7 +55,7 @@ namespace PMSWPF.Services
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// 订阅MQTT列表和变量数据变化的事件,以便在数据更新时重新加载配置和数据。
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_dataServices.OnMqttListChanged += HandleMqttListChanged;
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_dataServices.OnVariableDataChanged += HandleVariableDataChanged;
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_dataServices.OnDeviceListChanged += HandleDeviceListChanged;
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// 初始加载MQTT配置和变量数据。
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await LoadMqttConfigurations();
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@@ -68,6 +68,13 @@ namespace PMSWPF.Services
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// await Task.Delay(Timeout.Infinite, stoppingToken);
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}
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private async void HandleDeviceListChanged( List<Device> devices)
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{
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NlogHelper.Info("Variable data changed. Reloading variable associations."); // 记录变量数据变化信息
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// 重新加载变量数据。
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await LoadVariableData();
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}
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/// <summary>
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/// 停止MQTT后台服务。
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/// </summary>
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@@ -80,7 +87,7 @@ namespace PMSWPF.Services
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// 取消订阅事件。
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_dataServices.OnMqttListChanged -= HandleMqttListChanged;
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_dataServices.OnVariableDataChanged -= HandleVariableDataChanged;
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_dataServices.OnDeviceListChanged -= HandleDeviceListChanged;
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// 断开所有已连接的MQTT客户端。
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foreach (var client in _mqttClients.Values)
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@@ -286,7 +293,7 @@ namespace PMSWPF.Services
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/// </summary>
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/// <param name="sender">事件发送者。</param>
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/// <param name="mqtts">更新后的MQTT配置列表。</param>
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private async void HandleMqttListChanged(object sender, List<Mqtt> mqtts)
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private async void HandleMqttListChanged( List<Mqtt> mqtts)
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{
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NlogHelper.Info("MQTT list changed. Reloading configurations."); // 记录MQTT列表变化信息
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// 重新加载MQTT配置和变量数据。
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@@ -294,16 +301,5 @@ namespace PMSWPF.Services
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await LoadVariableData(); // 重新加载变量数据,以防关联发生变化
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}
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/// <summary>
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/// 处理变量数据变化事件的回调方法。
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/// </summary>
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/// <param name="sender">事件发送者。</param>
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/// <param name="variableDatas">更新后的变量数据列表。</param>
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private async void HandleVariableDataChanged( List<VariableData> variableDatas)
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{
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NlogHelper.Info("Variable data changed. Reloading variable associations."); // 记录变量数据变化信息
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// 重新加载变量数据。
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await LoadVariableData();
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}
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}
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}
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@@ -14,97 +14,42 @@ using PMSWPF.Models;
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namespace PMSWPF.Services
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{
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/// <summary>
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/// OPC UA 后台服务,负责处理所有与 OPC UA 相关的操作,包括连接服务器、订阅变量和接收数据更新。
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/// </summary>
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/// <remarks>
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/// ## 调用逻辑
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/// 1. **实例化与启动**:
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/// - 在 `App.xaml.cs` 的 `ConfigureServices` 方法中,通过 `services.AddSingleton<OpcUaBackgroundService>()` 将该服务注册为单例。
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/// - 在 `OnStartup` 方法中,通过 `Host.Services.GetRequiredService<OpcUaBackgroundService>().StartAsync()` 启动服务。
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///
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/// 2. **核心执行流程 (`ExecuteAsync`)**:
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/// - 服务启动后,`ExecuteAsync` 方法被调用。
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/// - 订阅 `DataServices.OnVariableDataChanged` 事件,以便在变量配置发生变化时动态更新 OPC UA 的连接和订阅。
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/// - 调用 `LoadOpcUaVariables()` 方法,初始化加载所有协议类型为 `OpcUA` 且状态为激活的变量。
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/// - 进入主循环,等待应用程序关闭信号。
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///
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/// 3. **变量加载与管理 (`LoadOpcUaVariables`)**:
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/// - 从 `DataServices` 获取所有变量数据。
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/// - 清理本地缓存中已不存在或不再活跃的变量,并断开相应的 OPC UA 连接。
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/// - 遍历所有活动的 OPC UA 变量,为新增的变量调用 `ConnectOpcUaService` 方法建立连接和订阅。
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/// - 如果变量已存在但会话断开,则尝试重新连接。
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///
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/// 4. **连接与订阅 (`ConnectOpcUaService`)**:
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/// - 检查变量是否包含有效的终结点 URL 和节点 ID。
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/// - 如果到目标终结点的会话已存在且已连接,则复用该会话。
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/// - 否则,创建一个新的 OPC UA `Session`,并将其缓存到 `_opcUaSessions` 字典中。
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/// - 创建一个 `Subscription`,并将其缓存到 `_opcUaSubscriptions` 字典中。
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/// - 创建一个 `MonitoredItem` 来监控指定变量节点的值变化,并将其添加到订阅中。
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/// - 注册 `OnSubNotification` 事件回调,用于处理接收到的数据更新。
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///
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/// 5. **数据接收 (`OnSubNotification`)**:
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/// - 当订阅的变量值发生变化时,OPC UA 服务器会发送通知。
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/// - `OnSubNotification` 方法被触发,处理接收到的数据。
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///
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/// 6. **动态更新 (`HandleVariableDataChanged`)**:
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/// - 当 `DataServices` 中的变量数据发生增、删、改时,会触发 `OnVariableDataChanged` 事件。
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/// - `HandleVariableDataChanged` 方法被调用,重新执行 `LoadOpcUaVariables()` 以应用最新的变量配置。
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///
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/// 7. **服务停止 (`ExecuteAsync` 退出循环)**:
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/// - 当应用程序关闭时,`stoppingToken` 被触发。
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/// - 取消对 `OnVariableDataChanged` 事件的订阅。
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/// - 调用 `DisconnectAllOpcUaSessions()` 方法,关闭所有活动的 OPC UA 会话和订阅。
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/// </remarks>
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public class OpcUaBackgroundService
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{
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private CancellationTokenSource _cancellationTokenSource;
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private Task _executingTask;
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private readonly DataServices _dataServices;
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// 存储 OPC UA 设备,键为设备Id,值为会话对象。
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private readonly Dictionary<int, Device> _deviceDic;
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// 存储 OPC UA 会话,键为终结点 URL,值为会话对象。
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private readonly Dictionary<string, Session> _opcUaSessions;
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private readonly Dictionary<string, Session> _sessionsDic;
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// 存储 OPC UA 订阅,键为终结点 URL,值为订阅对象。
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private readonly Dictionary<string, Subscription> _opcUaSubscriptions;
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private readonly Dictionary<string, Subscription> _subscriptionsDic;
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// 存储活动的 OPC UA 变量,键为变量的OpcNodeId
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private readonly Dictionary<string, VariableData> _opcUaNodeIdVariableDic; // Key: VariableData.Id
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// 储存所有要轮询更新的变量,键是Device.Id,值是这个设备所有要轮询的变量
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private readonly Dictionary<int, List<VariableData>> _opcUaPollVariableDic; // Key: VariableData.Id
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private readonly Dictionary<int, List<VariableData>> _pollVariableDic; // Key: VariableData.Id
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// 储存所有要订阅更新的变量,键是Device.Id,值是这个设备所有要轮询的变量
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private readonly Dictionary<int, List<VariableData>> _opcUaSubVariableDic;
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private readonly Dictionary<int, List<VariableData>> _subVariableDic;
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// private readonly Dictionary<int, CancellationTokenSource>
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// _opcUaPollingTasks; // Key: VariableData.Id, Value: CancellationTokenSource for polling task
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private List<Device> _opcUaDevices;
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// 后台服务的主线程,负责连接服务器,加载变量,订阅变量
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private Thread _serviceMainThread;
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// 轮询线程
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private Thread _pollThread;
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// 重新加载事件
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private readonly ManualResetEvent _reloadEvent = new ManualResetEvent(false);
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// 停止事件,触发后会停止整个Opc后台服务
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private readonly ManualResetEvent _stopdEvent = new ManualResetEvent(false);
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// 定义不同轮询级别的间隔时间。
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private readonly Dictionary<PollLevelType, TimeSpan> _pollingIntervals = new Dictionary<PollLevelType, TimeSpan>
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{
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{ PollLevelType.TenMilliseconds, TimeSpan.FromMilliseconds((int)PollLevelType.TenMilliseconds) },
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{
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PollLevelType.HundredMilliseconds, TimeSpan.FromMilliseconds((int)PollLevelType.HundredMilliseconds)
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},
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{
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PollLevelType.FiveHundredMilliseconds,
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TimeSpan.FromMilliseconds((int)PollLevelType.FiveHundredMilliseconds)
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},
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{ PollLevelType.OneSecond, TimeSpan.FromMilliseconds((int)PollLevelType.OneSecond) },
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{ PollLevelType.FiveSeconds, TimeSpan.FromMilliseconds((int)PollLevelType.FiveSeconds) },
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{ PollLevelType.TenSeconds, TimeSpan.FromMilliseconds((int)PollLevelType.TenSeconds) },
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{ PollLevelType.TwentySeconds, TimeSpan.FromMilliseconds((int)PollLevelType.TwentySeconds) },
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{ PollLevelType.ThirtySeconds, TimeSpan.FromMilliseconds((int)PollLevelType.ThirtySeconds) },
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{ PollLevelType.OneMinute, TimeSpan.FromMilliseconds((int)PollLevelType.OneMinute) },
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{ PollLevelType.ThreeMinutes, TimeSpan.FromMilliseconds((int)PollLevelType.ThreeMinutes) },
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{ PollLevelType.FiveMinutes, TimeSpan.FromMilliseconds((int)PollLevelType.FiveMinutes) },
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{ PollLevelType.TenMinutes, TimeSpan.FromMilliseconds((int)PollLevelType.TenMinutes) },
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{ PollLevelType.ThirtyMinutes, TimeSpan.FromMilliseconds((int)PollLevelType.ThirtyMinutes) }
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};
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/// <summary>
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/// OpcUaBackgroundService 的构造函数。
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@@ -113,11 +58,12 @@ namespace PMSWPF.Services
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public OpcUaBackgroundService(DataServices dataServices)
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{
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_dataServices = dataServices;
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_opcUaSessions = new Dictionary<string, Session>();
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_opcUaSubscriptions = new Dictionary<string, Subscription>();
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_sessionsDic = new Dictionary<string, Session>();
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_subscriptionsDic = new Dictionary<string, Subscription>();
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_opcUaNodeIdVariableDic = new();
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_opcUaPollVariableDic = new();
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_opcUaSubVariableDic = new();
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_pollVariableDic = new();
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_subVariableDic = new();
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_deviceDic = new();
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}
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/// <summary>
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@@ -128,37 +74,60 @@ namespace PMSWPF.Services
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public void StartService()
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{
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NlogHelper.Info("OPC UA 服务正在启动...");
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_cancellationTokenSource = new CancellationTokenSource();
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_executingTask = ExecuteAsync(_cancellationTokenSource.Token);
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_reloadEvent.Set();
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_serviceMainThread = new Thread(Execute);
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_serviceMainThread.IsBackground = true;
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_serviceMainThread.Name = "OpcUaServiceThread";
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_serviceMainThread.Start();
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}
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public async Task StopService()
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public void StopService()
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{
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NlogHelper.Info("OPC UA 服务正在停止...");
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if (_executingTask == null)
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{
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return;
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}
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_stopdEvent.Set();
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DisconnectAllOpcUaSessions();
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try
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{
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_cancellationTokenSource.Cancel();
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}
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finally
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{
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await Task.WhenAny(_executingTask, Task.Delay(Timeout.Infinite, CancellationToken.None));
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}
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_reloadEvent.Close();
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_stopdEvent.Close();
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NlogHelper.Info("OPC UA 服务已经停止。");
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}
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protected async Task ExecuteAsync(CancellationToken stoppingToken)
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private void Execute()
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{
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NlogHelper.Info("OpcUa后台服务已启动。");
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// 订阅变量数据变化事件,以便在变量配置发生变化时重新加载。
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_dataServices.OnVariableDataChanged += HandleVariableDataChanged;
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_dataServices.OnDeviceListChanged += HandleDeviceListChanged;
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while (!_stopdEvent.WaitOne(0))
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{
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_reloadEvent.WaitOne();
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if (_dataServices.Devices == null || _dataServices.Devices.Count == 0)
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{
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_reloadEvent.Reset();
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continue;
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}
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NlogHelper.Info("OpcUa后台服务开始加载变量...");
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// 初始化时加载所有活动的 OPC UA 变量。
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LoadOpcUaVariables();
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//连接服务器
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ConnectOpcUaService();
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// // 添加订阅变量
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SetupOpcUaSubscription();
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if (_pollThread == null)
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{
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_pollThread = new Thread(PollOpcUaVariable);
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_pollThread.IsBackground = true;
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_pollThread.Name = "OpcUaPollThread";
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_pollThread.Start();
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}
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NlogHelper.Info("OpcUa后台服务已启动。");
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_reloadEvent.Reset();
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}
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// 初始化时加载所有活动的 OPC UA 变量。
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await LoadOpcUaVariables();
|
||||
|
||||
// 循环运行,直到接收到停止信号。
|
||||
// while (!stoppingToken.IsCancellationRequested)
|
||||
@@ -168,116 +137,121 @@ namespace PMSWPF.Services
|
||||
// }
|
||||
NlogHelper.Info("OpcUa后台服务正在停止。");
|
||||
// 服务停止时,取消订阅事件并断开所有 OPC UA 连接。
|
||||
_dataServices.OnVariableDataChanged -= HandleVariableDataChanged;
|
||||
await DisconnectAllOpcUaSessions();
|
||||
_dataServices.OnDeviceListChanged -= HandleDeviceListChanged;
|
||||
}
|
||||
|
||||
private void HandleDeviceListChanged(List<Device> devices)
|
||||
{
|
||||
NlogHelper.Info("变量数据已更改。正在重新加载 OPC UA 变量。");
|
||||
_reloadEvent.Set();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 从数据库加载所有活动的 OPC UA 变量,并进行相应的连接和订阅管理。
|
||||
/// </summary>
|
||||
private async Task LoadOpcUaVariables()
|
||||
private void LoadOpcUaVariables()
|
||||
{
|
||||
Console.WriteLine("正在加载 OPC UA 变量...");
|
||||
// var allVariables = await _dataServices.GetAllVariableDataAsync();
|
||||
_opcUaDevices = _dataServices.Devices.Where(d => d.ProtocolType == ProtocolType.OpcUA && d.IsActive == true)
|
||||
.ToList();
|
||||
if (_opcUaDevices.Count == 0)
|
||||
return;
|
||||
// 是否是初次加载
|
||||
|
||||
|
||||
_opcUaPollVariableDic.Clear();
|
||||
_opcUaSubVariableDic.Clear();
|
||||
_opcUaNodeIdVariableDic.Clear();
|
||||
foreach (var opcUaDevice in _opcUaDevices)
|
||||
try
|
||||
{
|
||||
//查找设备中所有要轮询的变量
|
||||
var dPollList = opcUaDevice?.VariableTables?.SelectMany(vt => vt.DataVariables)
|
||||
.Where(vd => vd.IsActive == true &&
|
||||
vd.ProtocolType == ProtocolType.OpcUA &&
|
||||
vd.OpcUaUpdateType == OpcUaUpdateType.OpcUaPoll)
|
||||
.ToList();
|
||||
// 将变量保存到字典中,方便Read后还原
|
||||
foreach (var variableData in dPollList)
|
||||
var _opcUaDevices = _dataServices
|
||||
.Devices.Where(d => d.ProtocolType == ProtocolType.OpcUA && d.IsActive == true)
|
||||
.ToList();
|
||||
|
||||
if (_opcUaDevices.Count == 0)
|
||||
return;
|
||||
_deviceDic.Clear();
|
||||
_pollVariableDic.Clear();
|
||||
_subVariableDic.Clear();
|
||||
_opcUaNodeIdVariableDic.Clear();
|
||||
foreach (var opcUaDevice in _opcUaDevices)
|
||||
{
|
||||
_opcUaNodeIdVariableDic.Add(variableData.OpcUaNodeId, variableData);
|
||||
// 将设备保存到字典中,方便之后查找
|
||||
_deviceDic.Add(opcUaDevice.Id, opcUaDevice);
|
||||
//查找设备中所有要轮询的变量
|
||||
var dPollList = opcUaDevice.VariableTables?.SelectMany(vt => vt.DataVariables)
|
||||
.Where(vd => vd.IsActive == true &&
|
||||
vd.ProtocolType == ProtocolType.OpcUA &&
|
||||
vd.OpcUaUpdateType == OpcUaUpdateType.OpcUaPoll)
|
||||
.ToList();
|
||||
// 将变量保存到字典中,方便Read后还原
|
||||
foreach (var variableData in dPollList)
|
||||
{
|
||||
_opcUaNodeIdVariableDic.Add(variableData.OpcUaNodeId, variableData);
|
||||
}
|
||||
|
||||
NlogHelper.Info($"加载OpcUa轮询变量:{dPollList.Count}个");
|
||||
_pollVariableDic.Add(opcUaDevice.Id, dPollList);
|
||||
//查找设备中所有要订阅的变量
|
||||
var dSubList = opcUaDevice.VariableTables?.SelectMany(vt => vt.DataVariables)
|
||||
.Where(vd => vd.IsActive == true &&
|
||||
vd.ProtocolType == ProtocolType.OpcUA &&
|
||||
vd.OpcUaUpdateType == OpcUaUpdateType.OpcUaSubscription)
|
||||
.ToList();
|
||||
_subVariableDic.Add(opcUaDevice.Id, dSubList);
|
||||
NlogHelper.Info($"加载OpcUa订阅变量:{dSubList.Count}个");
|
||||
}
|
||||
|
||||
_opcUaPollVariableDic.Add(opcUaDevice.Id, dPollList);
|
||||
Console.WriteLine("已更新OPC UA轮询变量字典");
|
||||
//查找设备中所有要订阅的变量
|
||||
var dSubList = opcUaDevice?.VariableTables?.SelectMany(vt => vt.DataVariables)
|
||||
.Where(vd => vd.IsActive == true &&
|
||||
vd.ProtocolType == ProtocolType.OpcUA &&
|
||||
vd.OpcUaUpdateType == OpcUaUpdateType.OpcUaSubscription)
|
||||
.ToList();
|
||||
_opcUaSubVariableDic.Add(opcUaDevice.Id, dSubList);
|
||||
}
|
||||
|
||||
|
||||
//连接服务器
|
||||
await ConnectOpcUaService();
|
||||
// // 添加订阅变量
|
||||
SetupOpcUaSubscription();
|
||||
|
||||
await PollOpcUaVariable();
|
||||
catch (Exception e)
|
||||
{
|
||||
NotificationHelper.ShowError($"加载OpcUa变量的过程中发生了错误:{e.Message}");
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 连接到 OPC UA 服务器并订阅或轮询指定的变量。
|
||||
/// </summary>
|
||||
/// <param name="variable">要订阅或轮询的变量信息。</param>
|
||||
/// <param name="device">变量所属的设备信息。</param>
|
||||
private async Task ConnectOpcUaService()
|
||||
private void ConnectOpcUaService()
|
||||
{
|
||||
foreach (Device device in _opcUaDevices)
|
||||
foreach (Device device in _deviceDic.Values)
|
||||
{
|
||||
Session session = null;
|
||||
// 检查是否已存在到该终结点的活动会话。
|
||||
if (_opcUaSessions.TryGetValue(device.OpcUaEndpointUrl, out session) && session.Connected)
|
||||
if (_sessionsDic.TryGetValue(device.OpcUaEndpointUrl, out session) && session.Connected)
|
||||
{
|
||||
NlogHelper.Info($"已连接到 OPC UA 终结点: {device.OpcUaEndpointUrl}");
|
||||
NlogHelper.Info($"已连接到 OPC UA 服务器: {device.OpcUaEndpointUrl}");
|
||||
continue;
|
||||
}
|
||||
else
|
||||
{
|
||||
session = await OpcUaServiceHelper.CreateOpcUaSessionAsync(device.OpcUaEndpointUrl);
|
||||
if (session == null)
|
||||
return; // 连接失败,直接返回
|
||||
|
||||
_opcUaSessions[device.OpcUaEndpointUrl] = session;
|
||||
}
|
||||
session = ServiceHelper.CreateOpcUaSession(device.OpcUaEndpointUrl);
|
||||
if (session == null)
|
||||
return; // 连接失败,直接返回
|
||||
|
||||
_sessionsDic[device.OpcUaEndpointUrl] = session;
|
||||
}
|
||||
}
|
||||
|
||||
private async Task PollOpcUaVariable()
|
||||
private void PollOpcUaVariable()
|
||||
{
|
||||
while (!_cancellationTokenSource.Token.IsCancellationRequested)
|
||||
NlogHelper.Info("OpcUa轮询变量线程已启动,开始轮询变量....");
|
||||
while (!_stopdEvent.WaitOne(0))
|
||||
{
|
||||
try
|
||||
{
|
||||
foreach (var deviceId in _opcUaPollVariableDic.Keys.ToList())
|
||||
foreach (var deviceId in _pollVariableDic.Keys.ToList())
|
||||
{
|
||||
await Task.Delay(100,_cancellationTokenSource.Token);
|
||||
var device = _dataServices.Devices.FirstOrDefault(d => d.Id == deviceId);
|
||||
if (device == null || device.OpcUaEndpointUrl == String.Empty)
|
||||
Thread.Sleep(100);
|
||||
if (!_deviceDic.TryGetValue(deviceId, out var device) || device.OpcUaEndpointUrl == null)
|
||||
{
|
||||
NlogHelper.Warn(
|
||||
$"OpcUa轮询变量时,在DataService中未找到ID为 {deviceId} 的设备,或其服务器地址为空,请检查!");
|
||||
$"OpcUa轮询变量时,在deviceDic中未找到ID为 {deviceId} 的设备,或其服务器地址为空,请检查!");
|
||||
continue;
|
||||
}
|
||||
|
||||
_opcUaSessions.TryGetValue(device.OpcUaEndpointUrl, out Session session);
|
||||
_sessionsDic.TryGetValue(device.OpcUaEndpointUrl, out Session session);
|
||||
if (session == null || !session.Connected)
|
||||
{
|
||||
NlogHelper.Warn(
|
||||
$"用于 {device.OpcUaEndpointUrl} 的 OPC UA 会话未连接。正在尝试重新连接...");
|
||||
// 尝试重新连接会话
|
||||
await ConnectOpcUaService();
|
||||
continue;
|
||||
if (!_stopdEvent.WaitOne(0))
|
||||
{
|
||||
NlogHelper.Warn(
|
||||
$"用于 {device.OpcUaEndpointUrl} 的 OPC UA 会话未连接。正在尝试重新连接...");
|
||||
// 尝试重新连接会话
|
||||
ConnectOpcUaService();
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
var nodesToRead = new ReadValueIdCollection();
|
||||
if (!_opcUaPollVariableDic.TryGetValue(deviceId, out var variableList))
|
||||
if (!_pollVariableDic.TryGetValue(deviceId, out var variableList))
|
||||
{
|
||||
continue;
|
||||
}
|
||||
@@ -285,7 +259,7 @@ namespace PMSWPF.Services
|
||||
foreach (var variable in variableList)
|
||||
{
|
||||
// 获取变量的轮询间隔。
|
||||
if (!_pollingIntervals.TryGetValue(variable.PollLevelType, out var interval))
|
||||
if (!ServiceHelper.PollingIntervals.TryGetValue(variable.PollLevelType, out var interval))
|
||||
{
|
||||
NlogHelper.Info($"未知的轮询级别 {variable.PollLevelType},跳过变量 {variable.Name}。");
|
||||
continue;
|
||||
@@ -316,8 +290,7 @@ namespace PMSWPF.Services
|
||||
out DiagnosticInfoCollection diagnosticInfos);
|
||||
|
||||
if (results == null || results.Count == 0)
|
||||
return;
|
||||
Console.WriteLine($"结果循环数量----------------------:{results.Count}");
|
||||
continue;
|
||||
for (int i = 0; i < results.Count; i++)
|
||||
{
|
||||
var value = results[i];
|
||||
@@ -337,11 +310,12 @@ namespace PMSWPF.Services
|
||||
continue;
|
||||
}
|
||||
|
||||
Console.WriteLine($"轮询变量:{variable.Name}");
|
||||
|
||||
// 更新变量数据
|
||||
variable.DataValue = value.Value.ToString();
|
||||
variable.DisplayValue = value.Value.ToString(); // 或者根据需要进行格式化
|
||||
variable.UpdateTime = DateTime.Now;
|
||||
NlogHelper.Info($"轮询变量:{variable.Name},值:{variable.DataValue}");
|
||||
// Console.WriteLine($"结果变量跟更新时间:{variable.UpdateTime}");
|
||||
// await _dataServices.UpdateVariableDataAsync(variable);
|
||||
}
|
||||
@@ -349,11 +323,11 @@ namespace PMSWPF.Services
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
NlogHelper.Error($"OPC UA 轮询期间发生错误: {ex.Message}", ex);
|
||||
NotificationHelper.ShowError($"OPC UA 轮询期间发生错误: {ex.Message}", ex);
|
||||
}
|
||||
}
|
||||
|
||||
NlogHelper.Info($"OPC UA 变量轮询已停止。");
|
||||
NlogHelper.Info("OpcUa轮询变量线程已停止。");
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
@@ -372,74 +346,32 @@ namespace PMSWPF.Services
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 根据 PollLevelType 获取轮询间隔。
|
||||
/// </summary>
|
||||
/// <param name="pollLevelType">轮询级别类型。</param>
|
||||
/// <returns>时间间隔。</returns>
|
||||
private TimeSpan GetPollInterval(PollLevelType pollLevelType)
|
||||
{
|
||||
return pollLevelType switch
|
||||
{
|
||||
PollLevelType.OneSecond => TimeSpan.FromSeconds(1),
|
||||
PollLevelType.FiveSeconds => TimeSpan.FromSeconds(5),
|
||||
PollLevelType.TenSeconds => TimeSpan.FromSeconds(10),
|
||||
PollLevelType.ThirtySeconds => TimeSpan.FromSeconds(30),
|
||||
PollLevelType.OneMinute => TimeSpan.FromMinutes(1),
|
||||
PollLevelType.FiveMinutes => TimeSpan.FromMinutes(5),
|
||||
PollLevelType.TenMinutes => TimeSpan.FromMinutes(10),
|
||||
PollLevelType.ThirtyMinutes => TimeSpan.FromMinutes(30),
|
||||
PollLevelType.OneHour => TimeSpan.FromHours(1),
|
||||
_ => TimeSpan.FromSeconds(1), // 默认1秒
|
||||
};
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 断开与指定 OPC UA 服务器的连接。
|
||||
/// </summary>
|
||||
/// <param name="endpointUrl">OPC UA 服务器的终结点 URL。</param>
|
||||
private async Task DisconnectOpcUaSession(string endpointUrl)
|
||||
{
|
||||
NlogHelper.Info($"正在断开 OPC UA 会话: {endpointUrl}");
|
||||
if (_opcUaSessions.TryGetValue(endpointUrl, out var session))
|
||||
{
|
||||
if (_opcUaSubscriptions.TryGetValue(endpointUrl, out var subscription))
|
||||
{
|
||||
// 删除订阅。
|
||||
subscription.Delete(true);
|
||||
_opcUaSubscriptions.Remove(endpointUrl);
|
||||
}
|
||||
|
||||
|
||||
// 关闭会话。
|
||||
session.Close();
|
||||
_opcUaSessions.Remove(endpointUrl);
|
||||
NotificationHelper.ShowInfo($"已从 OPC UA 服务器断开连接: {endpointUrl}");
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 断开所有 OPC UA 会话。
|
||||
/// </summary>
|
||||
private async Task DisconnectAllOpcUaSessions()
|
||||
private void DisconnectAllOpcUaSessions()
|
||||
{
|
||||
NlogHelper.Info("正在断开所有 OPC UA 会话...");
|
||||
foreach (var endpointUrl in _opcUaSessions.Keys.ToList())
|
||||
foreach (var endpointUrl in _sessionsDic.Keys.ToList())
|
||||
{
|
||||
await DisconnectOpcUaSession(endpointUrl);
|
||||
}
|
||||
}
|
||||
NlogHelper.Info($"正在断开 OPC UA 会话: {endpointUrl}");
|
||||
if (_sessionsDic.TryGetValue(endpointUrl, out var session))
|
||||
{
|
||||
if (_subscriptionsDic.TryGetValue(endpointUrl, out var subscription))
|
||||
{
|
||||
// 删除订阅。
|
||||
subscription.Delete(true);
|
||||
_subscriptionsDic.Remove(endpointUrl);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 处理变量数据变化的事件。
|
||||
/// 当数据库中的变量信息发生变化时,此方法被调用以重新加载和配置 OPC UA 变量。
|
||||
/// </summary>
|
||||
/// <param name="sender">事件发送者。</param>
|
||||
/// <param name="variableDatas">变化的变量数据列表。</param>
|
||||
private async void HandleVariableDataChanged(List<VariableData> variableDatas)
|
||||
{
|
||||
NlogHelper.Info("变量数据已更改。正在重新加载 OPC UA 变量。");
|
||||
await LoadOpcUaVariables();
|
||||
|
||||
// 关闭会话。
|
||||
session.Close();
|
||||
_sessionsDic.Remove(endpointUrl);
|
||||
NotificationHelper.ShowInfo($"已从 OPC UA 服务器断开连接: {endpointUrl}");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -451,15 +383,19 @@ namespace PMSWPF.Services
|
||||
/// <param name="endpointUrl">OPC UA 服务器的终结点 URL。</param>
|
||||
private void SetupOpcUaSubscription()
|
||||
{
|
||||
foreach (var deviceId in _opcUaSubVariableDic.Keys)
|
||||
foreach (var deviceId in _subVariableDic.Keys)
|
||||
{
|
||||
var device = _dataServices.Devices.FirstOrDefault(d => d.Id == deviceId);
|
||||
Subscription subscription = null;
|
||||
// 得到session
|
||||
_opcUaSessions.TryGetValue(device.OpcUaEndpointUrl, out var session);
|
||||
if (!_sessionsDic.TryGetValue(device.OpcUaEndpointUrl, out var session))
|
||||
{
|
||||
NlogHelper.Info($"从OpcUa会话字典中获取会话失败: {device.OpcUaEndpointUrl} ");
|
||||
continue;
|
||||
}
|
||||
|
||||
// 判断设备是否已经添加了订阅
|
||||
if (_opcUaSubscriptions.TryGetValue(device.OpcUaEndpointUrl, out subscription))
|
||||
if (_subscriptionsDic.TryGetValue(device.OpcUaEndpointUrl, out subscription))
|
||||
{
|
||||
NlogHelper.Info($"OPC UA 终结点 {device.OpcUaEndpointUrl} 已存在订阅。");
|
||||
}
|
||||
@@ -469,11 +405,11 @@ namespace PMSWPF.Services
|
||||
subscription.PublishingInterval = 1000; // 发布间隔(毫秒)
|
||||
session.AddSubscription(subscription);
|
||||
subscription.Create();
|
||||
_opcUaSubscriptions[device.OpcUaEndpointUrl] = subscription;
|
||||
_subscriptionsDic[device.OpcUaEndpointUrl] = subscription;
|
||||
}
|
||||
|
||||
// 将变量添加到订阅
|
||||
foreach (VariableData variable in _opcUaSubVariableDic[deviceId])
|
||||
foreach (VariableData variable in _subVariableDic[deviceId])
|
||||
{
|
||||
// 7. 创建监控项并添加到订阅中。
|
||||
MonitoredItem monitoredItem = new MonitoredItem(subscription.DefaultItem);
|
||||
@@ -490,7 +426,7 @@ namespace PMSWPF.Services
|
||||
subscription.ApplyChanges(); // 应用更改
|
||||
}
|
||||
|
||||
NlogHelper.Info($"设备: {device.Name}, 添加了 {(_opcUaSubVariableDic[deviceId]?.Count ?? 0)} 个订阅变量。");
|
||||
NlogHelper.Info($"设备: {device.Name}, 添加了 {(_subVariableDic[deviceId]?.Count ?? 0)} 个订阅变量。");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -10,6 +10,8 @@ using S7.Net;
|
||||
using PMSWPF.Models;
|
||||
using PMSWPF.Enums;
|
||||
using PMSWPF.Helper;
|
||||
using S7.Net.Types;
|
||||
using DateTime = System.DateTime;
|
||||
|
||||
namespace PMSWPF.Services
|
||||
{
|
||||
@@ -21,46 +23,31 @@ namespace PMSWPF.Services
|
||||
// 数据服务实例,用于访问和操作应用程序数据,如设备配置。
|
||||
private readonly DataServices _dataServices;
|
||||
|
||||
// 存储 S7设备,键为设备Id,值为会话对象。
|
||||
private readonly Dictionary<int, Device> _deviceDic;
|
||||
|
||||
// 储存所有要轮询更新的变量,键是Device.Id,值是这个设备所有要轮询的变量
|
||||
private readonly Dictionary<int, List<VariableData>> _pollVariableDic; // Key: VariableData.Id
|
||||
|
||||
// 存储S7 PLC客户端实例的字典,键为设备ID,值为Plc对象。
|
||||
private readonly Dictionary<int, Plc> _s7PlcClients = new Dictionary<int, Plc>();
|
||||
private readonly Dictionary<string, Plc> _s7PlcClientDic;
|
||||
|
||||
// 储存所有变量的字典,方便通过id获取变量对象
|
||||
private readonly Dictionary<int, VariableData> _variableDic;
|
||||
// S7轮询一次读取的变量数,不得大于15
|
||||
private readonly int S7PollOnceReadMultipleVars = 9;
|
||||
// S7轮询一遍后的等待时间
|
||||
private readonly int S7PollOnceSleepTimeMs = 100;
|
||||
|
||||
// 轮询数据的线程。
|
||||
private Thread _pollingThread;
|
||||
|
||||
// 用于取消轮询操作的CancellationTokenSource。
|
||||
private CancellationTokenSource _cancellationTokenSource;
|
||||
private ManualResetEvent _reloadEvent = new ManualResetEvent(false);
|
||||
private ManualResetEvent _stopEvent = new ManualResetEvent(false);
|
||||
|
||||
// 读取变量计数器。
|
||||
private int readCount = 0;
|
||||
|
||||
// 跳过变量计数器(未到轮询时间)。
|
||||
private int TGCount = 0;
|
||||
|
||||
// 定义不同轮询级别的间隔时间。
|
||||
private readonly Dictionary<PollLevelType, TimeSpan> _pollingIntervals = new Dictionary<PollLevelType, TimeSpan>
|
||||
{
|
||||
{ PollLevelType.TenMilliseconds, TimeSpan.FromMilliseconds((int)PollLevelType.TenMilliseconds) },
|
||||
{
|
||||
PollLevelType.HundredMilliseconds, TimeSpan.FromMilliseconds((int)PollLevelType.HundredMilliseconds)
|
||||
},
|
||||
{
|
||||
PollLevelType.FiveHundredMilliseconds,
|
||||
TimeSpan.FromMilliseconds((int)PollLevelType.FiveHundredMilliseconds)
|
||||
},
|
||||
{ PollLevelType.OneSecond, TimeSpan.FromMilliseconds((int)PollLevelType.OneSecond) },
|
||||
{ PollLevelType.FiveSeconds, TimeSpan.FromMilliseconds((int)PollLevelType.FiveSeconds) },
|
||||
{ PollLevelType.TenSeconds, TimeSpan.FromMilliseconds((int)PollLevelType.TenSeconds) },
|
||||
{ PollLevelType.TwentySeconds, TimeSpan.FromMilliseconds((int)PollLevelType.TwentySeconds) },
|
||||
{ PollLevelType.ThirtySeconds, TimeSpan.FromMilliseconds((int)PollLevelType.ThirtySeconds) },
|
||||
{ PollLevelType.OneMinute, TimeSpan.FromMilliseconds((int)PollLevelType.OneMinute) },
|
||||
{ PollLevelType.ThreeMinutes, TimeSpan.FromMilliseconds((int)PollLevelType.ThreeMinutes) },
|
||||
{ PollLevelType.FiveMinutes, TimeSpan.FromMilliseconds((int)PollLevelType.FiveMinutes) },
|
||||
{ PollLevelType.TenMinutes, TimeSpan.FromMilliseconds((int)PollLevelType.TenMinutes) },
|
||||
{ PollLevelType.ThirtyMinutes, TimeSpan.FromMilliseconds((int)PollLevelType.ThirtyMinutes) }
|
||||
};
|
||||
|
||||
// 存储S7设备列表。
|
||||
private List<Device>? _s7Devices;
|
||||
private Thread _serviceMainThread;
|
||||
|
||||
/// <summary>
|
||||
/// 构造函数,注入ILogger和DataServices。
|
||||
@@ -70,6 +57,10 @@ namespace PMSWPF.Services
|
||||
public S7BackgroundService(DataServices dataServices)
|
||||
{
|
||||
_dataServices = dataServices;
|
||||
_deviceDic = new();
|
||||
_pollVariableDic = new();
|
||||
_s7PlcClientDic = new();
|
||||
_variableDic = new();
|
||||
// 订阅设备列表变更事件,以便在设备配置更新时重新加载。
|
||||
_dataServices.OnDeviceListChanged += HandleDeviceListChanged;
|
||||
}
|
||||
@@ -79,15 +70,10 @@ namespace PMSWPF.Services
|
||||
/// </summary>
|
||||
/// <param name="sender">事件发送者。</param>
|
||||
/// <param name="devices">更新后的设备列表。</param>
|
||||
private void HandleDeviceListChanged(object sender, List<Device> devices)
|
||||
private void HandleDeviceListChanged(List<Device> devices)
|
||||
{
|
||||
// 过滤出S7协议且激活的设备。
|
||||
_s7Devices = devices.Where(d => d.ProtocolType == ProtocolType.S7 && d.IsActive)
|
||||
.ToList();
|
||||
// 当设备列表变化时,更新PLC客户端
|
||||
// 这里需要更复杂的逻辑来处理连接的关闭和新连接的建立
|
||||
// 简单起见,这里只做日志记录
|
||||
NlogHelper.Info("设备列表已更改。S7客户端可能需要重新初始化。");
|
||||
_reloadEvent.Set();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
@@ -96,237 +82,272 @@ namespace PMSWPF.Services
|
||||
public void StartService()
|
||||
{
|
||||
NlogHelper.Info("S7后台服务正在启动。");
|
||||
// 创建一个CancellationTokenSource,用于控制轮询线程的取消。
|
||||
_cancellationTokenSource = new CancellationTokenSource();
|
||||
|
||||
// 创建并启动轮询线程。
|
||||
_pollingThread = new Thread(() => PollingLoop(_cancellationTokenSource.Token))
|
||||
{
|
||||
IsBackground = true // 设置为后台线程,随主程序退出而退出
|
||||
};
|
||||
_pollingThread.Start();
|
||||
_reloadEvent.Set();
|
||||
_serviceMainThread = new Thread(Execute);
|
||||
_serviceMainThread.IsBackground = true;
|
||||
_serviceMainThread.Name = "S7ServiceMainThread";
|
||||
_serviceMainThread.Start();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 轮询循环方法,在新线程中执行,周期性地读取S7设备数据。
|
||||
/// </summary>
|
||||
/// <param name="stoppingToken">用于取消轮询的CancellationToken。</param>
|
||||
private void PollingLoop(CancellationToken stoppingToken)
|
||||
private void Execute()
|
||||
{
|
||||
NlogHelper.Info("S7轮询线程已启动。");
|
||||
// 注册取消回调,当服务停止时记录日志。
|
||||
stoppingToken.Register(() => NlogHelper.Info("S7后台服务正在停止。"));
|
||||
|
||||
// 初始加载S7设备列表。
|
||||
_s7Devices = _dataServices.Devices?.Where(d => d.ProtocolType == ProtocolType.S7 && d.IsActive)
|
||||
.ToList();
|
||||
|
||||
// 轮询循环,直到收到取消请求。
|
||||
while (!stoppingToken.IsCancellationRequested)
|
||||
{
|
||||
// _logger.LogDebug("S7后台服务正在执行后台工作。");
|
||||
// _logger.LogDebug($"开始轮询变量,当前时间:{DateTime.Now}");
|
||||
readCount = 0;
|
||||
TGCount = 0;
|
||||
|
||||
Stopwatch stopwatch = Stopwatch.StartNew(); // 启动计时器,测量轮询耗时
|
||||
PollS7Devices(stoppingToken); // 执行S7设备轮询
|
||||
stopwatch.Stop(); // 停止计时器
|
||||
// _logger.LogDebug($"结束轮询变量,当前时间:{DateTime.Now}");
|
||||
NlogHelper.Info($"读取变量数:{readCount}个,跳过变量数:{TGCount}",throttle:true);
|
||||
|
||||
// 短暂休眠以防止CPU占用过高,并控制轮询频率。
|
||||
Thread.Sleep(100);
|
||||
}
|
||||
|
||||
NlogHelper.Info("S7轮询线程已停止。");
|
||||
}
|
||||
|
||||
|
||||
/// <summary>
|
||||
/// 初始化或重新连接PLC客户端。
|
||||
/// </summary>
|
||||
/// <param name="device">S7设备。</param>
|
||||
/// <returns>连接成功的Plc客户端实例,如果连接失败则返回null。</returns>
|
||||
private Plc? InitializePlcClient(Device device)
|
||||
{
|
||||
// 检查字典中是否已存在该设备的PLC客户端。
|
||||
if (!_s7PlcClients.TryGetValue(device.Id, out var plcClient))
|
||||
{
|
||||
// 如果不存在,则创建新的Plc客户端。
|
||||
try
|
||||
{
|
||||
plcClient = new Plc(device.CpuType, device.Ip, (short)device.Prot, device.Rack, device.Slot);
|
||||
plcClient.Open(); // 尝试打开连接。
|
||||
_s7PlcClients[device.Id] = plcClient; // 将新创建的客户端添加到字典。
|
||||
NlogHelper.Info($"已连接到S7 PLC: {device.Name} ({device.Ip})");
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
NotificationHelper.ShowError($"连接S7 PLC失败: {device.Name} ({device.Ip})", ex);
|
||||
return null; // 连接失败,返回null。
|
||||
}
|
||||
}
|
||||
else if (!plcClient.IsConnected)
|
||||
{
|
||||
// 如果存在但未连接,则尝试重新连接。
|
||||
try
|
||||
{
|
||||
plcClient.Open(); // 尝试重新打开连接。
|
||||
NlogHelper.Info($"已重新连接到S7 PLC: {device.Name} ({device.Ip})");
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
NotificationHelper.ShowError($"重新连接S7 PLC失败: {device.Name} ({device.Ip})", ex);
|
||||
return null; // 重新连接失败,返回null。
|
||||
}
|
||||
}
|
||||
|
||||
return plcClient; // 返回连接成功的Plc客户端。
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 轮询S7设备数据。
|
||||
/// </summary>
|
||||
/// <param name="stoppingToken">取消令牌。</param>
|
||||
private void PollS7Devices(CancellationToken stoppingToken)
|
||||
{
|
||||
// 如果没有活跃的S7设备,则等待一段时间后重试。
|
||||
if (_s7Devices == null || !_s7Devices.Any())
|
||||
{
|
||||
NlogHelper.Info(
|
||||
"未找到活跃的S7设备进行轮询。等待5秒后重试。",throttle:true);
|
||||
try
|
||||
{
|
||||
// 使用CancellationToken来使等待可取消。
|
||||
Task.Delay(TimeSpan.FromSeconds(5), stoppingToken)
|
||||
.Wait(stoppingToken);
|
||||
}
|
||||
catch (OperationCanceledException)
|
||||
{
|
||||
// 如果在等待期间取消,则退出。
|
||||
return;
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
// 遍历所有S7设备。
|
||||
foreach (var device in _s7Devices)
|
||||
{
|
||||
if (stoppingToken.IsCancellationRequested) return; // 如果收到取消请求,则停止。
|
||||
|
||||
// 尝试获取或初始化PLC客户端连接。
|
||||
var plcClient = InitializePlcClient(device);
|
||||
if (plcClient == null)
|
||||
{
|
||||
continue; // 如果连接失败,则跳过当前设备。
|
||||
}
|
||||
|
||||
|
||||
// 读取设备变量。
|
||||
ReadDeviceVariables(plcClient, device, stoppingToken);
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 读取设备的S7变量并更新其值。
|
||||
/// </summary>
|
||||
/// <param name="plcClient">已连接的Plc客户端实例。</param>
|
||||
/// <param name="device">S7设备。</param>
|
||||
/// <param name="stoppingToken">取消令牌。</param>
|
||||
private void ReadDeviceVariables(Plc plcClient, Device device, CancellationToken stoppingToken)
|
||||
{
|
||||
// 过滤出当前设备和S7协议相关的变量。
|
||||
var s7Variables = device.VariableTables
|
||||
.Where(vt => vt.ProtocolType == ProtocolType.S7 && vt.IsActive)
|
||||
.SelectMany(vt => vt.DataVariables)
|
||||
.ToList();
|
||||
|
||||
if (!s7Variables.Any())
|
||||
{
|
||||
NlogHelper.Info($"设备 {device.Name} 没有找到活跃的S7变量。");
|
||||
return;
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
// 遍历并读取每个S7变量。
|
||||
foreach (var variable in s7Variables)
|
||||
while (!_stopEvent.WaitOne(0))
|
||||
{
|
||||
// Stopwatch stopwatch = Stopwatch.StartNew();
|
||||
if (stoppingToken.IsCancellationRequested) return; // 如果取消令牌被请求,则停止读取。
|
||||
|
||||
// 获取变量的轮询间隔。
|
||||
if (!_pollingIntervals.TryGetValue(variable.PollLevelType, out var interval))
|
||||
_reloadEvent.WaitOne();
|
||||
if (_dataServices.Devices == null || _dataServices.Devices.Count == 0)
|
||||
{
|
||||
NlogHelper.Info($"未知轮询级别 {variable.PollLevelType},跳过变量 {variable.Name}。");
|
||||
_reloadEvent.Reset();
|
||||
continue;
|
||||
}
|
||||
|
||||
// 检查是否达到轮询时间。
|
||||
if ((DateTime.Now - variable.LastPollTime) < interval)
|
||||
LoadVariables();
|
||||
ConnectS7Service();
|
||||
if (_pollingThread == null)
|
||||
{
|
||||
TGCount++;
|
||||
continue; // 未到轮询时间,跳过。
|
||||
_pollingThread = new Thread(PollS7Variable);
|
||||
_pollingThread.IsBackground = true;
|
||||
_pollingThread.Name = "S7ServicePollingThread";
|
||||
_pollingThread.Start();
|
||||
}
|
||||
|
||||
_reloadEvent.Reset();
|
||||
}
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
NlogHelper.Error($"S7后台服务主线程运行中发生了错误:{e.Message}",e);
|
||||
DisconnectAllPlc();
|
||||
}
|
||||
}
|
||||
|
||||
private void PollS7Variable()
|
||||
{
|
||||
try
|
||||
{
|
||||
NlogHelper.Info("S7后台服务开始轮询变量....");
|
||||
while (!_stopEvent.WaitOne(0))
|
||||
{
|
||||
Thread.Sleep(S7PollOnceSleepTimeMs);
|
||||
try
|
||||
{
|
||||
// 从PLC读取变量值。
|
||||
var value = plcClient.Read(variable.S7Address);
|
||||
if (value != null)
|
||||
// Stopwatch sw = Stopwatch.StartNew();
|
||||
int varCount = 0;
|
||||
// 遍历并读取每个S7变量。
|
||||
foreach (var deviceId in _pollVariableDic.Keys.ToList())
|
||||
{
|
||||
// 更新变量的原始数据值和显示值。
|
||||
variable.DataValue = value.ToString();
|
||||
variable.DisplayValue
|
||||
= SiemensHelper.ConvertS7Value(value, variable.DataType, variable.Converstion);
|
||||
variable.UpdateTime = DateTime.Now;
|
||||
if (!_deviceDic.TryGetValue(deviceId, out var device))
|
||||
{
|
||||
NlogHelper.Warn($"S7服务轮询时在deviceDic中没有找到Id为:{deviceId}的设备");
|
||||
continue;
|
||||
}
|
||||
|
||||
variable.LastPollTime = DateTime.Now; // 更新最后轮询时间。
|
||||
readCount++;
|
||||
// _logger.LogDebug($"线程ID:{Environment.CurrentManagedThreadId},已读取变量 {variable.Name}: {variable.DataValue}");
|
||||
if (!_s7PlcClientDic.TryGetValue(device.Ip, out var plcClient))
|
||||
{
|
||||
NlogHelper.Warn($"S7服务轮询时没有找到设备I:{deviceId}的初始化好的Plc客户端对象!");
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!plcClient.IsConnected)
|
||||
{
|
||||
NlogHelper.Warn($"S7服务轮询时设备:{device.Name},没有连接,正在重新连接...");
|
||||
ConnectS7Service();
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!_pollVariableDic.TryGetValue(deviceId, out var variableList))
|
||||
{
|
||||
NlogHelper.Warn($"S7服务轮询时没有找到设备I:{deviceId},要轮询的变量列表!");
|
||||
continue;
|
||||
}
|
||||
|
||||
Dictionary<int, DataItem> readVarDic = new Dictionary<int, DataItem>();
|
||||
|
||||
foreach (var variable in variableList)
|
||||
{
|
||||
// 获取变量的轮询间隔。
|
||||
if (!ServiceHelper.PollingIntervals.TryGetValue(variable.PollLevelType, out var interval))
|
||||
{
|
||||
NlogHelper.Info($"未知轮询级别 {variable.PollLevelType},跳过变量 {variable.Name}。");
|
||||
continue;
|
||||
}
|
||||
|
||||
// 检查是否达到轮询时间。
|
||||
if ((DateTime.Now - variable.UpdateTime) < interval)
|
||||
continue; // 未到轮询时间,跳过。
|
||||
|
||||
try
|
||||
{
|
||||
readVarDic.Add(variable.Id, DataItem.FromAddress(variable.S7Address));
|
||||
varCount++;
|
||||
if (readVarDic.Count == S7PollOnceReadMultipleVars)
|
||||
{
|
||||
// 批量读取
|
||||
plcClient.ReadMultipleVars(readVarDic.Values.ToList());
|
||||
// 批量读取后还原结果
|
||||
foreach (var varId in readVarDic.Keys.ToList())
|
||||
{
|
||||
DataItem dataItem = readVarDic[varId];
|
||||
if (!_variableDic.TryGetValue(varId, out var variableData))
|
||||
{
|
||||
NlogHelper.Warn($"S7后台服务批量读取变量后,还原值,在_variableDic中找不到ID为{varId}的变量");
|
||||
continue;
|
||||
}
|
||||
|
||||
// 更新变量的原始数据值和显示值。
|
||||
variableData.DataValue = dataItem.Value.ToString();
|
||||
variableData.UpdateTime = DateTime.Now;
|
||||
Console.WriteLine($"S7轮询变量:{variableData.Name},值:{variableData.DataValue}");
|
||||
}
|
||||
|
||||
readVarDic.Clear();
|
||||
}
|
||||
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
NlogHelper.Warn($"从设备 {device.Name} 读取变量 {variable.Name} 失败:{ex.Message}");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// sw.Stop();
|
||||
// Console.WriteLine(
|
||||
// $"S7轮询设备数:{_pollVariableDic.Count},共轮询变量数:{varCount},总耗时:{sw.ElapsedMilliseconds}ms");
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
NotificationHelper.ShowError( $"从设备 {device.Name} 读取变量 {variable.Name} 失败。",ex);
|
||||
NotificationHelper.ShowError($"S7后台服务在轮询变量过程中发生错误:{ex.Message}", ex);
|
||||
}
|
||||
// stopwatch.Stop();
|
||||
// NlogHelper.Info($"读取变量耗时:{stopwatch.ElapsedMilliseconds}ms ");
|
||||
}
|
||||
|
||||
NlogHelper.Info("S7后台服务轮询变量结束。");
|
||||
}
|
||||
catch (Exception ex)
|
||||
catch (Exception e)
|
||||
{
|
||||
NotificationHelper.ShowError($"设备 {device.Name} 批量读取过程中发生错误。",ex);
|
||||
NlogHelper.Error($"S7后台服务轮询变量线程运行中发生了错误:{e.Message}",e);
|
||||
DisconnectAllPlc();
|
||||
}
|
||||
}
|
||||
|
||||
private void ConnectS7Service()
|
||||
{
|
||||
try
|
||||
{
|
||||
// 检查字典中是否已存在该设备的PLC客户端。
|
||||
foreach (var device in _deviceDic.Values.ToList())
|
||||
{
|
||||
if (_s7PlcClientDic.TryGetValue(device.Ip, out var plc))
|
||||
{
|
||||
NlogHelper.Info($"已连接到 OPC UA 服务器: {device.Ip}:{device.Prot}");
|
||||
continue;
|
||||
}
|
||||
|
||||
// 如果不存在或者没有连接,则创建新的Plc客户端。
|
||||
var plcClient = new Plc(device.CpuType, device.Ip, (short)device.Prot, device.Rack, device.Slot);
|
||||
plcClient.Open(); // 尝试打开连接。
|
||||
// 将新创建的客户端添加到字典。
|
||||
if (_s7PlcClientDic.ContainsKey(device.Ip))
|
||||
{
|
||||
_s7PlcClientDic[device.Ip] = plcClient;
|
||||
}
|
||||
else
|
||||
{
|
||||
_s7PlcClientDic.Add(device.Ip, plcClient);
|
||||
}
|
||||
|
||||
NotificationHelper.ShowSuccess($"已连接到S7 PLC: {device.Name} ({device.Ip})");
|
||||
}
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
NotificationHelper.ShowError($"S7服务连接PLC的过程中发生错误:{e}");
|
||||
}
|
||||
}
|
||||
|
||||
private void LoadVariables()
|
||||
{
|
||||
try
|
||||
{
|
||||
_deviceDic.Clear();
|
||||
_pollVariableDic.Clear();
|
||||
|
||||
NlogHelper.Info("开始加载S7变量....");
|
||||
var _s7Devices = _dataServices
|
||||
.Devices.Where(d => d.IsActive == true && d.ProtocolType == ProtocolType.S7)
|
||||
.ToList();
|
||||
int varCount = 0;
|
||||
foreach (var device in _s7Devices)
|
||||
{
|
||||
_deviceDic.Add(device.Id, device);
|
||||
// 过滤出当前设备和S7协议相关的变量。
|
||||
var s7Variables = device.VariableTables
|
||||
.Where(vt => vt.ProtocolType == ProtocolType.S7 && vt.IsActive)
|
||||
.SelectMany(vt => vt.DataVariables)
|
||||
.Where(vd => vd.IsActive == true)
|
||||
.ToList();
|
||||
// 将变量存储到字典中,方便以后通过ID快速查找
|
||||
foreach (var s7Variable in s7Variables)
|
||||
{
|
||||
if (_variableDic.ContainsKey(s7Variable.Id))
|
||||
{
|
||||
_variableDic[s7Variable.Id] = s7Variable;
|
||||
}
|
||||
else
|
||||
{
|
||||
_variableDic.Add(s7Variable.Id, s7Variable);
|
||||
}
|
||||
}
|
||||
|
||||
varCount += s7Variables.Count();
|
||||
_pollVariableDic.Add(device.Id, s7Variables);
|
||||
}
|
||||
|
||||
NlogHelper.Info($"S7变量加载成功,共加载S7设备:{_s7Devices.Count}个,变量数:{varCount}");
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
NotificationHelper.ShowError($"S7后台服务加载变量时发生了错误:{e.Message}", e);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/// <summary>
|
||||
/// 停止S7后台服务。
|
||||
/// </summary>
|
||||
public void StopService()
|
||||
{
|
||||
NlogHelper.Info("S7 Background Service is stopping.");
|
||||
NlogHelper.Info("S7后台服务正在关闭....");
|
||||
_stopEvent.Set();
|
||||
|
||||
_pollingThread.Interrupt();
|
||||
_serviceMainThread.Interrupt();
|
||||
DisconnectAllPlc();
|
||||
|
||||
// 发出信号,请求轮询线程停止。
|
||||
_cancellationTokenSource?.Cancel();
|
||||
// 等待轮询线程完成。
|
||||
_pollingThread?.Join();
|
||||
_reloadEvent.Close();
|
||||
_stopEvent.Reset();
|
||||
_stopEvent.Close();
|
||||
// 清空所有字典。
|
||||
_deviceDic.Clear();
|
||||
_s7PlcClientDic.Clear();
|
||||
_pollVariableDic.Clear();
|
||||
NlogHelper.Info("S7后台服务已关闭");
|
||||
}
|
||||
|
||||
private void DisconnectAllPlc()
|
||||
{
|
||||
if (_s7PlcClientDic==null || _s7PlcClientDic.Count == 0)
|
||||
return;
|
||||
// 关闭所有活跃的PLC连接。
|
||||
foreach (var plcClient in _s7PlcClients.Values)
|
||||
foreach (var plcClient in _s7PlcClientDic.Values.ToList())
|
||||
{
|
||||
if (plcClient.IsConnected)
|
||||
{
|
||||
plcClient.Close();
|
||||
NlogHelper.Info($"Closed S7 PLC connection: {plcClient.IP}");
|
||||
NlogHelper.Info($"关闭S7连接: {plcClient.IP}");
|
||||
}
|
||||
}
|
||||
|
||||
_s7PlcClients.Clear(); // 清空PLC客户端字典。
|
||||
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user