using Admin.NET.Core.Service;
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namespace WCS.Application;
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public static class PLCTaskAction
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{
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private static readonly ISqlSugarClient _db = SqlSugarSetup.ITenant.GetConnectionScope(SqlSugarConst.MainConfigId);
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private static List<WcsPlc> listPlc;
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private static List<WcsDevice> listPlcDevice;
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private static List<WcsStation> listPlcStation;
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private static List<PLCUtil> listPlcUtil = new List<PLCUtil>();
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private static CancellationTokenSource cts;//取消线程标识
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public static event EventHandler DeviceValueChangeEvent;
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static PLCTaskAction()
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{
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//订阅事件
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DeviceValueChangeEvent += PLCService.OnChangeEvent;
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listPlc = _db.Queryable<WcsPlc>().ToList();
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listPlcDevice = _db.Queryable<WcsDevice>().ToList();
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listPlcStation = _db.Queryable<WcsStation>().ToList();
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}
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/// <summary>
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/// 初始化PLC连接
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/// </summary>
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public static void Init()
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{
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if (listPlcUtil.Count != 0)
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{
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cts.Cancel();
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listPlc = _db.Queryable<WcsPlc>().ToList();
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listPlcDevice = _db.Queryable<WcsDevice>().ToList();
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listPlcStation = _db.Queryable<WcsStation>().ToList();
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//等待几秒钟，把已有线程取消掉再连接
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Thread.Sleep(5000);
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foreach (var modPlcUtil in listPlcUtil)
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{
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modPlcUtil.Close();
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}
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listPlcUtil.Clear();
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}
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foreach (var modPlc in listPlc)
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{
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var plc = new PLCUtil(modPlc);
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listPlcUtil.Add(plc);
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}
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cts = new CancellationTokenSource();
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StartRead();
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}
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/// <summary>
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/// 开启读取plc线程
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/// </summary>
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public static void StartRead()
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{
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foreach (var modPlc in listPlc)
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{
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Task.Run(() =>
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{
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var _modplc = modPlc;
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while (true)
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{
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//取消线程 关闭PLC连接
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if (cts.Token.IsCancellationRequested)
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{
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foreach (var modPlcUtil in listPlcUtil)
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{
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modPlcUtil.Close();
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}
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throw new OperationCanceledException();
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}
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try
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{
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var modPlcUtil = listPlcUtil.FirstOrDefault(s => s.PlcId == modPlc.Id);
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if (modPlcUtil == null)
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{
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modPlcUtil = new PLCUtil(modPlc);
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listPlcUtil.Add(modPlcUtil);
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}
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var listDevice = listPlcDevice.Where(s => s.PlcId == _modplc.Id).ToList();
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//循环读设备
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foreach (var modDevice in listDevice.Where(s => s.Level == DeviceLevelEnum.DB))
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{
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var (result, value) = modPlcUtil.GetPlcDBValue(modDevice.PosType.Value, modDevice.DbNumber, modDevice.PlcPos);
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if (result.IsSucceed)
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{
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//无流程跳出
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if (value == 0)
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continue;
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var dto = modDevice.Adapt<WcsDeviceDto>();
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dto.Value = value;
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dto.Type = _modplc.Type;
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dto.PLCUtil = modPlcUtil;
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dto.listStation = listPlcStation.Where(s => s.DeviceId == modDevice.Id).ToList();
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dto.listDevice = listDevice.Where(s => s.StationNum == modDevice.StationNum).ToList();
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//这里触发值变更事件
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DeviceValueChangeEvent?.Invoke(dto, EventArgs.Empty);
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}
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else
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{
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//删除当前连接 下一次循环重新连接
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Console.WriteLine("连接断开...");
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modPlcUtil.Close();
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listPlcUtil.Remove(modPlcUtil);
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}
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}
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Thread.Sleep(3000);
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}
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catch (Exception ex)
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{
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}
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}
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}, cts.Token);
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}
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}
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/// <summary>
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/// 停止服务
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/// </summary>
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public static void Stop()
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{
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cts.Cancel();
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}
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}
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