private static async Task <int> ReadAlarms(ReadAlarmsOptions readOptions, ILoggerFactory loggerFactory) { var client = new Dacs7Client(readOptions.Address, PlcConnectionType.Pg, 5000, loggerFactory) { MaxAmQCalled = (ushort)readOptions.MaxJobs, MaxAmQCalling = (ushort)readOptions.MaxJobs }; var logger = loggerFactory?.CreateLogger("Dacs7Cli.ReadAlarms"); try { long msTotal = 0; await client.ConnectAsync(); try { var sw = new Stopwatch(); sw.Start(); var c = new CancellationTokenSource(); _ = Task.Factory.StartNew(() => { Console.ReadKey(); c.Cancel(); }); while (true) { var results = await client.ReceiveAlarmUpdatesAsync(c.Token); if (results.HasAlarms) { foreach (var alarm in results.Alarms) { Console.WriteLine($"Alarm update: ID: {alarm.Id} MsgNumber: {alarm.MsgNumber} IsAck: {alarm.IsAck} ", alarm); } } else if (!results.ChannelClosed) { await results.CloseUpdateChannel(); break; } else { break; } } sw.Stop(); msTotal += sw.ElapsedMilliseconds; logger?.LogDebug($"ReadAlarmsTime: {sw.Elapsed}"); } catch (Exception ex) { logger?.LogError($"Exception in read alarms {ex.Message}."); } } catch (Exception ex) { logger?.LogError($"An error occured in ReadAlarms: {ex.Message} - {ex.InnerException?.Message}"); return(1); } finally { await client.DisconnectAsync(); } return(0); }