Fix multiple poller situational problems

AutoTools.DocBuilder/Program.cs

@@ -32,7 +32,7 @@ Console.WriteLine($"{filePath}");
 
 StringBuilder markdownBuilder = new StringBuilder();
 
-var plcNames = Enum.GetNames<PlcType>().OrderBy(x => x).ToArray();
+var plcNames = Enum.GetNames<PlcType>().Where(x => x != PlcType.Unknown.ToString()).OrderBy(x => x).ToArray();
 
 void WritePlcTypeTable(string[] names) {
 

Examples.BasicEthernet/Program.cs

@@ -67,9 +67,6 @@ internal class Program {
 
             plc.ConfigureConnection("192.168.178.55", 9094);
             await plc.ConnectAsync();
-            //await plc.SendCommandAsync($"%EE#RR0000100");
-            //await plc.SendCommandAsync($"%EE#RCCR09030903");
-            await plc.SendCommandAsync($"%EE#RP0000000067");
 
         }
 

Examples.WPF/App.xaml

@@ -0,0 +1,9 @@
+<Application x:Class="Examples.WPF.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:Examples.WPF"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>

Examples.WPF/App.xaml.cs

@@ -0,0 +1,85 @@
+using Examples.WPF.ViewModels;
+using MewtocolNet;
+using MewtocolNet.Logging;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Media;
+using System.Windows.Navigation;
+
+namespace Examples.WPF;
+
+public partial class App : Application {
+
+    public static AppViewModel ViewModel { get; private set; } = null!;
+
+    public static new App Current = null!;
+
+    public static new MainWindow MainWindow = null!;
+
+    public static ObservableCollection<TextBlock> LoggerItems = null!;
+
+    internal static event Action? LogEventProcessed;
+
+    protected override void OnStartup(StartupEventArgs e) {
+
+        ViewModel = new AppViewModel();
+
+        Current = this;
+        LoggerItems = new();
+
+        Logger.LogLevel = LogLevel.Verbose;
+        Logger.DefaultTargets = LoggerTargets.Trace;
+
+        Logger.OnNewLogMessage((d, l, m) => {
+
+            Application.Current.Dispatcher.BeginInvoke(() => {
+
+                Brush msgColor = null!;
+
+                switch (l) {
+                    case LogLevel.Error:
+                    msgColor = Brushes.Red;
+                    break;
+                    case LogLevel.Change:
+                    msgColor = Brushes.Blue;
+                    break;
+                    case LogLevel.Verbose:
+                    msgColor = Brushes.Gold;
+                    break;
+                    case LogLevel.Critical:
+                    msgColor = Brushes.Gray;
+                    break;
+                }
+
+                if (LoggerItems.Count > 1000) LoggerItems.RemoveAt(0);
+
+                var contRun = msgColor == null ? new Run(m) : new Run(m) {
+                    Foreground = msgColor,
+                };
+
+                LoggerItems.Add(new TextBlock {
+                    Inlines = {
+                        new Run($"[{d:hh:mm:ss:ff}] ") {
+                            Foreground = Brushes.LimeGreen,
+                        },
+                        contRun
+                    }
+                });
+
+                LogEventProcessed?.Invoke();
+
+            }, System.Windows.Threading.DispatcherPriority.Background);
+
+        });
+
+    }
+
+}

Examples.WPF/AssemblyInfo.cs

@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]

Examples.WPF/Examples.WPF.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net7.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+  <ItemGroup>
+	<ProjectReference Include="..\MewtocolNet\MewtocolNet.csproj" />
+  </ItemGroup>
+
+</Project>

Examples.WPF/MainWindow.xaml

@@ -0,0 +1,162 @@
+<Window x:Class="Examples.WPF.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Examples.WPF"
+        d:DataContext="{d:DesignInstance local:MainWindow, IsDesignTimeCreatable=True}"
+        mc:Ignorable="d"
+        MinWidth="500"
+        MinHeight="400"
+        Height="600"
+        Width="800"
+        Title="MewtocolNet WPF Demo">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition/>
+            <RowDefinition Height="auto"/>
+            <RowDefinition MinHeight="30" Height="150"/>
+        </Grid.RowDefinitions>
+        <ContentControl x:Name="mainContent"/>
+        <GridSplitter Grid.Row="1"
+                      HorizontalAlignment="Stretch"
+                      Background="Gray" 
+                      ShowsPreview="true"
+                      Height="5">
+            <GridSplitter.Template>
+                <ControlTemplate>
+                    <Separator/>
+                </ControlTemplate>
+            </GridSplitter.Template>
+        </GridSplitter>
+        <Grid Grid.Row="2">
+
+            <Grid.RowDefinitions>
+                <RowDefinition Height="auto"/>
+                <RowDefinition/>
+                <RowDefinition Height="20"/>
+            </Grid.RowDefinitions>
+
+            <Border Background="LightGray"/>
+
+            <StackPanel HorizontalAlignment="Left"
+                        Orientation="Horizontal">
+
+                <TextBlock Text="Logger"
+                           Margin="5"/>
+
+                <Border Width="1"
+                        Margin="5"
+                        Background="Gray"/>
+
+                <StackPanel Orientation="Horizontal">
+
+                    <TextBlock Text="Rx"
+                               Margin="5"/>
+
+                    <Ellipse IsEnabled="{Binding AppViewModel.Plc.IsReceiving, Mode=OneWay}"
+                             Fill="Lime"
+                             Width="10"
+                             Height="10">
+                        <Ellipse.Style>
+                            <Style TargetType="Ellipse">
+                                <Style.Triggers>
+                                    <Trigger Property="IsEnabled" Value="False">
+                                        <Setter Property="Opacity" Value=".1"/>
+                                    </Trigger>
+                                </Style.Triggers>
+                            </Style>
+                        </Ellipse.Style>
+                    </Ellipse>
+
+                    <TextBlock Text="Tx"
+                           Margin="5"/>
+
+                    <Ellipse Fill="Orange"
+                             IsEnabled="{Binding AppViewModel.Plc.IsSending, Mode=OneWay}"
+                             Width="10"
+                             Height="10">
+                        <Ellipse.Style>
+                            <Style TargetType="Ellipse">
+                                <Style.Triggers>
+                                    <Trigger Property="IsEnabled" Value="False">
+                                        <Setter Property="Opacity" Value=".1"/>
+                                    </Trigger>
+                                </Style.Triggers>
+                            </Style>
+                        </Ellipse.Style>
+                    </Ellipse>
+
+                    <Border Width="1"
+                            Margin="5"
+                            Background="Gray"/>
+
+                    <TextBlock Text="{Binding AppViewModel.Plc.BytesPerSecondDownstream, Mode=OneWay}"
+                               VerticalAlignment="Center"/>
+                    
+                    <Border Width="1"
+                            Margin="5"
+                            Background="Gray"/>
+
+                    <TextBlock Text="{Binding AppViewModel.Plc.BytesPerSecondUpstream, Mode=OneWay}"
+                               VerticalAlignment="Center"/>
+                    
+                    <StackPanel.Style>
+                        <Style TargetType="StackPanel">
+                            <Style.Triggers>
+                                <DataTrigger Binding="{Binding AppViewModel.PlcIsNull}" Value="True">
+                                    <Setter Property="Visibility" Value="Collapsed"/>
+                                </DataTrigger>
+                            </Style.Triggers>
+                        </Style>
+                    </StackPanel.Style>
+
+                </StackPanel>
+                
+            </StackPanel>
+
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Right">
+                
+                <Button Content="Expand"
+                        Margin="2"/>
+
+                <ToggleButton Content="Autoscroll"
+                              IsChecked="True"
+                              Margin="2"
+                              x:Name="autoScrollBtn"/>
+                
+            </StackPanel>
+
+            <ListBox Grid.Row="1"
+                     Background="Black"
+                     Foreground="White"
+                     BorderThickness="0"
+                     VirtualizingPanel.IsVirtualizing="true" 
+                     VirtualizingPanel.VirtualizationMode="Recycling"
+                     ScrollViewer.HorizontalScrollBarVisibility="Disabled"
+                     ScrollViewer.VerticalScrollBarVisibility="Disabled"
+                     ItemsSource="{Binding LoggerItems, Mode=OneWay}"
+                     x:Name="loggerList">
+                <ItemsControl.ItemsPanel>
+                    <ItemsPanelTemplate>
+                        <StackPanel Orientation="Vertical"/>
+                    </ItemsPanelTemplate>
+                </ItemsControl.ItemsPanel>
+                <ItemsControl.ItemTemplate>
+                    <DataTemplate>
+                        <ContentPresenter Content="{Binding}"/>
+                    </DataTemplate>
+                </ItemsControl.ItemTemplate>
+            </ListBox>
+
+            <Border Background="Black"
+                    Grid.Row="2">
+                <TextBlock Text=">"
+                           Foreground="White"
+                           Margin="5,0,0,0"/>
+            </Border>
+            
+        </Grid>
+    </Grid>
+</Window>

Examples.WPF/MainWindow.xaml.cs

@@ -0,0 +1,57 @@
+using Examples.WPF.ViewModels;
+using Examples.WPF.Views;
+using MewtocolNet;
+using MewtocolNet.Logging;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace Examples.WPF;
+
+public partial class MainWindow : Window {
+
+    public ObservableCollection<TextBlock> LoggerItems => App.LoggerItems;
+
+    public AppViewModel AppViewModel => App.ViewModel;
+
+    public MainWindow() {
+
+        InitializeComponent();
+
+        this.DataContext = this;
+        App.MainWindow = this;
+
+        mainContent.Content = new ConnectView();
+
+        loggerList.PreviewMouseWheel += (s, e) => {
+
+            autoScrollBtn.IsChecked = false;
+
+        };
+
+        App.LogEventProcessed += () => {
+
+            Application.Current.Dispatcher.BeginInvoke(() => {
+
+                if (autoScrollBtn?.IsChecked != null && autoScrollBtn.IsChecked.Value)
+                    loggerList.ScrollIntoView(App.LoggerItems.Last());
+
+            }, System.Windows.Threading.DispatcherPriority.Send);
+
+        };
+
+    }
+
+}

Examples.WPF/ViewModels/AppViewModel.cs

@@ -0,0 +1,30 @@
+using MewtocolNet;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Examples.WPF.ViewModels {
+
+    public class AppViewModel : ViewModelBase {
+
+        private IPlc? plc;
+
+        public bool PlcIsNull => plc == null;
+
+        public bool PlcIsNotNull => plc != null;
+
+        public IPlc? Plc {
+            get => plc; 
+            set {
+                plc = value;
+                OnPropChange();
+                OnPropChange(nameof(PlcIsNull));
+                OnPropChange(nameof(PlcIsNotNull));
+            }
+        }
+
+    }
+
+}

Examples.WPF/ViewModels/ConnectViewViewModel.cs

@@ -0,0 +1,117 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration.Internal;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Threading;
+using MewtocolNet;
+using MewtocolNet.ComCassette;
+
+namespace Examples.WPF.ViewModels;
+
+internal class ConnectViewViewModel : ViewModelBase {
+
+    private bool hasComports = false;   
+    private IEnumerable<int> baudRates = null!;
+    private IEnumerable<string> comPorts = null!;
+    private IEnumerable<CassetteInformation> foundCassettes = null!;
+
+    private string selectedIP = "192.168.115.210";
+    private string selectedPort = "9094";
+    private bool isConnecting;
+
+    public IEnumerable<int> BaudRates { 
+        get => baudRates; 
+        set {
+            baudRates = value;
+            OnPropChange();
+        }
+    }
+
+    public IEnumerable<string> ComPorts {
+        get => comPorts;
+        set {
+            comPorts = value;
+            OnPropChange();
+        }
+    }
+
+    public IEnumerable<CassetteInformation> FoundCassettes {
+        get => foundCassettes;
+        set {
+            foundCassettes = value;
+            OnPropChange();
+        }
+    }
+
+    public bool HasComports {
+        get => hasComports;
+        set {
+            hasComports = value;
+            OnPropChange();
+        }
+    }
+
+    public string SelectedIP {
+        get { return selectedIP; }
+        set {
+            selectedIP = value;
+            OnPropChange();
+        }
+    }
+
+
+    public string SelectedPort {
+        get { return selectedPort; }
+        set {
+            selectedPort = value;
+            OnPropChange();
+        }
+    }
+
+    public bool IsConnecting {
+        get { return isConnecting; }
+        set { 
+            isConnecting = value;
+            OnPropChange();
+        }
+    }
+
+    private DispatcherTimer tm;
+
+    public ConnectViewViewModel() {
+
+        BaudRates = Mewtocol.GetUseableBaudRates();
+        ScanTimerTick(null, null!);
+
+        tm = new DispatcherTimer {
+            Interval = TimeSpan.FromSeconds(3),
+        };
+        tm.Tick += ScanTimerTick;
+
+        tm.Start();
+
+    }
+
+    private async void ScanTimerTick(object? sender, EventArgs e) {
+
+        ComPorts = Mewtocol.GetSerialPortNames();
+        HasComports = ComPorts != null && ComPorts.Count() > 0;
+
+        var found = await CassetteFinder.FindClientsAsync(timeoutMs: 1000);
+        if (FoundCassettes == null || !Enumerable.SequenceEqual(found, FoundCassettes))
+            FoundCassettes = found;
+
+    }
+
+    internal void SelectedCassette (CassetteInformation cassette) {
+
+        SelectedIP = cassette.IPAddress.ToString();
+        SelectedPort = cassette.Port.ToString();
+
+    }
+
+    internal void EndTimer() => tm.Stop();
+
+}

Examples.WPF/ViewModels/PlcDataViewViewModel.cs

@@ -0,0 +1,14 @@
+using MewtocolNet;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Examples.WPF.ViewModels;
+
+public class PlcDataViewViewModel : ViewModelBase {
+
+    public IPlc Plc => App.ViewModel.Plc!;
+
+}

Examples.WPF/ViewModels/ViewModelBase.cs

@@ -0,0 +1,18 @@
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+namespace Examples.WPF.ViewModels;
+
+public abstract class ViewModelBase : INotifyPropertyChanged {
+
+    public event PropertyChangedEventHandler? PropertyChanged;
+
+    public void PropChange(string _name) {
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(_name));
+    }
+
+    protected void OnPropChange([CallerMemberName] string propertyName = null) {
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+    }
+
+}

Examples.WPF/Views/ConnectView.xaml

@@ -0,0 +1,129 @@
+<UserControl x:Class="Examples.WPF.Views.ConnectView"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:Examples.WPF.Views"
+             xmlns:vm="clr-namespace:Examples.WPF.ViewModels"
+             mc:Ignorable="d" 
+             d:DataContext="{d:DesignInstance vm:ConnectViewViewModel, IsDesignTimeCreatable=True}"
+             d:DesignHeight="450" d:DesignWidth="800">
+    <Grid Margin="10">
+        <StackPanel>
+
+            <StackPanel.Resources>
+                <Style TargetType="TextBox">
+                    <Setter Property="Padding" Value="5"/>
+                </Style>
+            </StackPanel.Resources>
+            
+            <StackPanel>
+                <TextBlock Text="Connect to a PLC"
+                           FontSize="24"/>
+                <Label Content="Set your connection type"/>
+                <ComboBox SelectedIndex="0" x:Name="conTypeCombo">
+                    <ComboBoxItem>Ethernet</ComboBoxItem>
+                    <ComboBoxItem IsEnabled="{Binding HasComports}">Serial</ComboBoxItem>
+                </ComboBox>
+            </StackPanel>
+
+            <Separator/>
+
+            <StackPanel MinWidth="200">
+
+                <TextBlock Text="Cassettes"/>
+
+                <DataGrid ItemsSource="{Binding FoundCassettes}"
+                          SelectionChanged="SelectedCassette"
+                          AutoGenerateColumns="False"
+                          MinHeight="150"
+                          MaxHeight="200"
+                          IsReadOnly="True">
+                    <DataGrid.Columns>
+                        <DataGridTextColumn Header="Name" Binding="{Binding Name}" Width=".5*"/>
+                        <DataGridTextColumn Header="IP" Binding="{Binding IPAddress}" Width=".3*"/>
+                        <DataGridTextColumn Header="Port" Binding="{Binding Port}" Width=".3*"/>
+                        <DataGridCheckBoxColumn Header="DHCP" Binding="{Binding UsesDHCP}" Width="auto"/>
+                        <DataGridTextColumn Header="MAC" Binding="{Binding MacAddressStr, Mode=OneWay}" Width="auto"/>
+                        <DataGridTextColumn Header="Status" Binding="{Binding Status}" Width="auto"/>
+                    </DataGrid.Columns>
+                    <DataGrid.RowStyle>
+                        <Style TargetType="{x:Type DataGridRow}">
+                            <Style.Triggers>
+                                <DataTrigger Binding="{Binding Port}" Value="0">
+                                    <Setter Property="IsEnabled" Value="False"/>
+                                </DataTrigger>
+                            </Style.Triggers>
+                        </Style>
+                    </DataGrid.RowStyle>
+                </DataGrid>
+
+                <TextBlock Text="Connection"/>
+
+                <StackPanel Orientation="Horizontal">
+                    <Label Content="IP Address"
+                           VerticalAlignment="Center"/>
+                    <TextBox Text="{Binding SelectedIP}"
+                             VerticalAlignment="Center"/>
+                    <Label Content="Port"
+                           VerticalAlignment="Center"/>
+                    <TextBox Text="{Binding SelectedPort}"
+                             VerticalAlignment="Center"/>
+                    <Button Content="Connect"
+                            Click="ClickedConnectEth"
+                            VerticalAlignment="Center"
+                            Padding="5"
+                            Margin="10,0,0,0">
+                        <Button.Style>
+                            <Style TargetType="Button">
+                                <Style.Triggers>
+                                    <DataTrigger Binding="{Binding IsConnecting}">
+                                        <Setter Property="IsEnabled" Value="False"/>
+                                    </DataTrigger>
+                                </Style.Triggers>
+                            </Style>
+                        </Button.Style>
+                    </Button>
+                </StackPanel>
+
+                <StackPanel.Style>
+                    <Style TargetType="StackPanel">
+                        <Setter Property="Visibility" Value="Collapsed"/>
+                        <Style.Triggers>
+                            <DataTrigger Binding="{Binding SelectedIndex, ElementName=conTypeCombo}" Value="0">
+                                <Setter Property="Visibility" Value="Visible"/>
+                            </DataTrigger>
+                        </Style.Triggers>
+                    </Style>
+                </StackPanel.Style>
+                
+            </StackPanel>
+
+            <StackPanel MinWidth="200" 
+                        HorizontalAlignment="Left">
+
+                <StackPanel Orientation="Vertical">
+                    <Label Content="COM Port"/>
+                    <ComboBox ItemsSource="{Binding ComPorts}"
+                              SelectedIndex="0"/>
+                    <Label Content="BaudRate"/>
+                    <ComboBox ItemsSource="{Binding BaudRates}"
+                              SelectedIndex="0"/>
+                </StackPanel>
+
+                <StackPanel.Style>
+                    <Style TargetType="StackPanel">
+                        <Setter Property="Visibility" Value="Collapsed"/>
+                        <Style.Triggers>
+                            <DataTrigger Binding="{Binding SelectedIndex, ElementName=conTypeCombo}" Value="1">
+                                <Setter Property="Visibility" Value="Visible"/>
+                            </DataTrigger>
+                        </Style.Triggers>
+                    </Style>
+                </StackPanel.Style>
+
+            </StackPanel>
+
+        </StackPanel>
+    </Grid>
+</UserControl>

Examples.WPF/Views/ConnectView.xaml.cs

@@ -0,0 +1,78 @@
+using Examples.WPF.ViewModels;
+using MewtocolNet;
+using MewtocolNet.ComCassette;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace Examples.WPF.Views;
+
+/// <summary>
+/// Interaktionslogik für ConnectView.xaml
+/// </summary>
+public partial class ConnectView : UserControl {
+
+    private ConnectViewViewModel viewModel;
+
+    public ConnectView() {
+
+        InitializeComponent();
+        viewModel = new ConnectViewViewModel();
+        this.DataContext = viewModel;
+
+        Unloaded += (s, e) => viewModel.EndTimer();
+
+    }
+
+    private void SelectedCassette(object sender, SelectionChangedEventArgs e) {
+
+        var cassette = (CassetteInformation)((DataGrid)sender).SelectedItem;
+        if (cassette == null) return;
+
+        viewModel.SelectedCassette(cassette);
+
+    }
+
+    private void ClickedConnectEth(object sender, RoutedEventArgs e) {
+
+        Application.Current.Dispatcher.BeginInvoke(async () => {
+
+            viewModel.IsConnecting = true;
+
+            var parsedInt = int.Parse(viewModel.SelectedPort);
+
+            App.ViewModel.Plc = Mewtocol.Ethernet(viewModel.SelectedIP, parsedInt)
+            .WithPoller()
+            .WithRegisters(b => {
+                b.Struct<short>("DT0").Build();
+                b.Struct<short>("DT0").AsArray(30).Build();
+            })
+            .Build();
+
+            await App.ViewModel.Plc.ConnectAsync();
+
+            if (App.ViewModel.Plc.IsConnected) {
+
+                App.MainWindow.mainContent.Content = new PlcDataView();
+
+            }
+
+            viewModel.IsConnecting = false;
+
+        }, System.Windows.Threading.DispatcherPriority.Send);
+
+    }
+
+}

Examples.WPF/Views/PlcDataView.xaml

@@ -0,0 +1,76 @@
+<UserControl x:Class="Examples.WPF.Views.PlcDataView"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:vm="clr-namespace:Examples.WPF.ViewModels"
+             xmlns:local="clr-namespace:Examples.WPF.Views"
+             mc:Ignorable="d" 
+             d:DataContext="{d:DesignInstance vm:PlcDataViewViewModel, IsDesignTimeCreatable=True}"
+             d:DesignHeight="450" 
+             d:DesignWidth="800">
+    <Grid Margin="10">
+        
+        <Grid.RowDefinitions>
+            <RowDefinition Height="auto"/>
+            <RowDefinition/>
+            <RowDefinition/>
+        </Grid.RowDefinitions>
+
+        <StackPanel>
+
+            <TextBlock>
+                
+                <Run Text="{Binding Plc.PlcInfo.TypeName, Mode=OneWay}"
+                     FontSize="24"
+                     FontWeight="SemiBold"/>
+
+                <Run Text="{Binding Plc.PlcInfo.CpuVersion, StringFormat='v{0}', Mode=OneWay}"
+                     FontSize="24"
+                     FontWeight="Light"/>
+
+            </TextBlock>
+
+            <TextBlock Text="{Binding Plc.PlcInfo.TypeCode, StringFormat='#{0:X}', Mode=OneWay}"
+                       FontSize="18"/>
+
+            <ItemsControl ItemsSource="{Binding Plc.PlcInfo.OperationModeTags, Mode=OneWay}">
+                <ItemsControl.ItemsPanel>
+                    <ItemsPanelTemplate>
+                        <StackPanel Orientation="Horizontal"/>
+                    </ItemsPanelTemplate>
+                </ItemsControl.ItemsPanel>
+                <ItemsControl.ItemTemplate>
+                    <DataTemplate>
+                        <Border Background="LightGray"
+                                CornerRadius="5"
+                                Margin="2"
+                                Padding="5">
+                            <TextBlock Text="{Binding}"/>
+                        </Border>
+                    </DataTemplate>
+                </ItemsControl.ItemTemplate>
+            </ItemsControl>
+
+            <ItemsControl ItemsSource="{Binding Plc.PlcInfo.HardwareInformationTags, Mode=OneWay}">
+                <ItemsControl.ItemsPanel>
+                    <ItemsPanelTemplate>
+                        <StackPanel Orientation="Horizontal"/>
+                    </ItemsPanelTemplate>
+                </ItemsControl.ItemsPanel>
+                <ItemsControl.ItemTemplate>
+                    <DataTemplate>
+                        <Border Background="LightGray"
+                                CornerRadius="5"
+                                Margin="2"
+                                Padding="5">
+                            <TextBlock Text="{Binding}"/>
+                        </Border>
+                    </DataTemplate>
+                </ItemsControl.ItemTemplate>
+            </ItemsControl>
+
+        </StackPanel>
+        
+    </Grid>
+</UserControl>

Examples.WPF/Views/PlcDataView.xaml.cs

@@ -0,0 +1,32 @@
+using Examples.WPF.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace Examples.WPF.Views;
+
+public partial class PlcDataView : UserControl {
+
+    private PlcDataViewViewModel viewModel;
+
+    public PlcDataView() {
+        
+        InitializeComponent();
+
+        viewModel = new PlcDataViewViewModel();
+        this.DataContext = viewModel;
+
+    }
+
+}

MewtocolNet.sln

@@ -23,7 +23,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AutoTools.ChmDataExtract",
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AutoTools.DocBuilder", "AutoTools.DocBuilder\AutoTools.DocBuilder.csproj", "{00ACA0AB-3988-4EF7-98A6-B39A36B136DA}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Examples.ProgramReadWrite", "Examples.ProgramReadWrite\Examples.ProgramReadWrite.csproj", "{51BDABAA-05B0-4802-AA37-243DAE22D5DC}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Examples.ProgramReadWrite", "Examples.ProgramReadWrite\Examples.ProgramReadWrite.csproj", "{51BDABAA-05B0-4802-AA37-243DAE22D5DC}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Examples.WPF", "Examples.WPF\Examples.WPF.csproj", "{C8A486EA-6054-4B77-859E-BFEEA93658CF}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -143,6 +145,18 @@ Global
 		{51BDABAA-05B0-4802-AA37-243DAE22D5DC}.Release|x64.Build.0 = Release|Any CPU
 		{51BDABAA-05B0-4802-AA37-243DAE22D5DC}.Release|x86.ActiveCfg = Release|Any CPU
 		{51BDABAA-05B0-4802-AA37-243DAE22D5DC}.Release|x86.Build.0 = Release|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Debug|x64.Build.0 = Debug|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Debug|x86.Build.0 = Debug|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Release|x64.ActiveCfg = Release|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Release|x64.Build.0 = Release|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Release|x86.ActiveCfg = Release|Any CPU
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -154,6 +168,7 @@ Global
 		{5A9DE453-AD64-4F8D-8215-3BB26674D164} = {BAEF983A-EFF2-48DF-A74E-57084166BB4D}
 		{00ACA0AB-3988-4EF7-98A6-B39A36B136DA} = {BAEF983A-EFF2-48DF-A74E-57084166BB4D}
 		{51BDABAA-05B0-4802-AA37-243DAE22D5DC} = {323729B0-5FB2-4592-9FA6-220C46BBF84C}
+		{C8A486EA-6054-4B77-859E-BFEEA93658CF} = {323729B0-5FB2-4592-9FA6-220C46BBF84C}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {4ABB8137-CD8F-4691-9802-9ED371012F47}

MewtocolNet/ComCassette/CassetteFinder.cs

@@ -1,4 +1,5 @@
-using System;
+using MewtocolNet.Logging;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net;
@@ -16,6 +17,8 @@ namespace MewtocolNet.ComCassette {
 
         public static async Task<IEnumerable<CassetteInformation>> FindClientsAsync(string ipSource = null, int timeoutMs = 100) {
 
+            Logger.Log("Scanning for cassettes over UDP");
+
             var from = new IPEndPoint(IPAddress.Any, 0);
 
             var interfacesTasks = new List<Task<List<CassetteInformation>>>();
@@ -67,7 +70,9 @@ namespace MewtocolNet.ComCassette {
 
             }
 
-            return decomposed;
+            Logger.Log($"Found {decomposed.Count} cassettes");
+
+            return decomposed.OrderBy(x => x.IPAddress.ToString());
 
         }
 

MewtocolNet/ComCassette/CassetteInformation.cs

@@ -50,6 +50,11 @@ namespace MewtocolNet.ComCassette {
         /// </summary>
         public byte[] MacAddress { get; private set; }
 
+        /// <summary>
+        /// Mac address of the cassette formatted as a MAC string (XX:XX:XX:XX:XX) 
+        /// </summary>
+        public string MacAddressStr => MacAddress.ToHexString(":");
+
         /// <summary>
         /// The source endpoint the cassette is reachable from
         /// </summary>
@@ -177,6 +182,38 @@ namespace MewtocolNet.ComCassette {
 
         }
 
+        public static bool operator ==(CassetteInformation a, CassetteInformation b) => EqualProps(a, b);
+
+        public static bool operator !=(CassetteInformation a, CassetteInformation b) => !EqualProps(a, b);
+
+        private static bool EqualProps (CassetteInformation a, CassetteInformation b) {
+
+            if (a is null && b is null) return true;
+            if (!(a is null) && b is null) return false;
+            if (!(b is null) && a is null) return false;
+
+            return a.Name == b.Name &&
+                   a.UsesDHCP == b.UsesDHCP &&
+                   a.IPAddress.ToString() == b.IPAddress.ToString() &&
+                   a.SubnetMask.ToString() == b.SubnetMask.ToString() &&
+                   a.GatewayAddress.ToString() == b.GatewayAddress.ToString() &&
+                   a.MacAddressStr == b.MacAddressStr &&
+                   a.FirmwareVersion == b.FirmwareVersion &&
+                   a.Port == b.Port &&
+                   a.Status == b.Status;
+
+        }
+
+        public override bool Equals(object obj) {
+
+            if ((obj == null) || !this.GetType().Equals(obj.GetType())) {
+                return false;
+            } else {
+                return (CassetteInformation)obj == this;
+            }
+
+        }
+
     }
 
 }

MewtocolNet/DataLists/CodeDescriptions.cs

@@ -1,6 +1,6 @@
 using System.Collections.Generic;
 
-namespace MewtocolNet.Helpers {
+namespace MewtocolNet.DataLists {
 
     internal class CodeDescriptions {
 

MewtocolNet/Helpers/MewtocolHelpers.cs

@@ -159,6 +159,40 @@ namespace MewtocolNet {
 
         }
 
+        /// <summary>
+        /// Splits a string by uppercase words
+        /// </summary>
+        internal static IEnumerable<string> SplitByAlternatingCase(this string str) {
+
+            var words = new List<string>();
+            var result = new StringBuilder();
+
+            for (int i = 0; i < str.Length; i++) {
+
+                char lastCh = str[Math.Max(0, i - 1)];
+                char ch = str[i];
+
+                if (char.IsUpper(ch) && char.IsLower(lastCh) && result.Length > 0) {
+                    words.Add(result.ToString().Trim());
+                    result.Clear();
+                }
+
+                result.Append(ch);
+
+            }
+
+            if (!string.IsNullOrEmpty(result.ToString()))
+                words.Add(result.ToString().Trim());
+
+            return words;
+
+        }
+
+        /// <summary>
+        /// Splits a string by uppercase words and joins them with the given seperator
+        /// </summary>
+        internal static string JoinSplitByUpperCase(this string str, string seperator = " ") => string.Join(seperator, str.SplitByAlternatingCase());
+
         internal static string Ellipsis(this string str, int maxLength) {
 
             if (string.IsNullOrEmpty(str) || str.Length <= maxLength)
@@ -366,7 +400,7 @@ namespace MewtocolNet {
 
         }
 
-#if DEBUG
+        #if DEBUG
 
         internal static bool WasTestedLive(this PlcType plcT) {
 
@@ -396,7 +430,7 @@ namespace MewtocolNet {
 
         }
 
-#endif
+        #endif
 
         #endregion
 
@@ -444,6 +478,7 @@ namespace MewtocolNet {
 
         #endregion
 
+
     }
 
 }

MewtocolNet/Helpers/ParsedPlcName.cs

@@ -14,12 +14,12 @@ namespace MewtocolNet {
         /// <summary>
         /// Whole name of the PLC
         /// </summary>
-        public string WholeName { get; internal set; }
+        public string WholeName { get; internal set; } = "Unknown PLC";
 
         /// <summary>
         /// The family group of the PLC
         /// </summary>
-        public string Group { get; internal set; }
+        public string Group { get; internal set; } = "Unknown Group";
 
         /// <summary>
         /// The Memory size of the PLC
@@ -29,17 +29,17 @@ namespace MewtocolNet {
         /// <summary>
         /// The subtype strings of the plc
         /// </summary>
-        public string[] SubTypes { get; internal set; }
+        public string[] SubTypes { get; internal set; } = new string[] { "N/A" };
 
         /// <summary>
         /// Typecode of the parsed string
         /// </summary>
-        public int TypeCode { get; internal set; }  
+        public int TypeCode { get; internal set; }
 
         /// <summary>
         /// The encoded name, same as enum name
         /// </summary>
-        public string EncodedName { get; internal set; }    
+        public string EncodedName { get; internal set; } = "Unknown";
 
         /// <summary>
         /// True if the model is discontinued
@@ -55,6 +55,10 @@ namespace MewtocolNet {
 
         internal static ParsedPlcName PlcDeconstruct(string wholeStr) {
 
+            if(wholeStr == "Unknown") {
+                return new ParsedPlcName();
+            }
+
             var reg = new Regex(@"(?<group>[A-Za-z0-9]*)_(?<size>[A-Za-z0-9]*)(?:__)?(?<additional>.*)");
             var match = reg.Match(wholeStr);
 

MewtocolNet/IPlc.cs

@@ -18,11 +18,21 @@ namespace MewtocolNet {
         /// </summary>
         bool IsConnected { get; }
 
+        /// <summary>
+        /// This device is sending a message to the plc
+        /// </summary>
+        bool IsSending { get; } 
+
         /// <summary>
         /// The current transmission speed in bytes per second
         /// </summary>
         int BytesPerSecondUpstream { get; }
 
+        /// <summary>
+        /// This device is receiving a message from the plc
+        /// </summary>
+        bool IsReceiving { get; }
+
         /// <summary>
         /// The current transmission speed in bytes per second
         /// </summary>

MewtocolNet/Logging/Logger.cs

@@ -22,9 +22,11 @@ namespace MewtocolNet.Logging {
 
         static Logger () {
 
+            var isConsoleApplication = Console.LargestWindowWidth != 0;
+
             OnNewLogMessage((d, l, m) => {
 
-                if(DefaultTargets.HasFlag(LoggerTargets.Console)) {
+                if(isConsoleApplication && DefaultTargets.HasFlag(LoggerTargets.Console)) {
 
                     switch (l) {
                         case LogLevel.Error:
@@ -88,5 +90,15 @@ namespace MewtocolNet.Logging {
 
         }
 
+        internal static void LogError (string message, MewtocolInterface sender = null) => Log(message, LogLevel.Error, sender);
+
+        internal static void Log (string message, MewtocolInterface sender = null) => Log(message, LogLevel.Info, sender);
+
+        internal static void LogChange (string message, MewtocolInterface sender = null) => Log(message, LogLevel.Change, sender);
+
+        internal static void LogVerbose (string message, MewtocolInterface sender = null) => Log(message, LogLevel.Verbose, sender);
+
+        internal static void LogCritical (string message, MewtocolInterface sender = null) => Log(message, LogLevel.Critical, sender);
+
     }
 }

MewtocolNet/Mewtocol.cs

@@ -19,7 +19,72 @@ namespace MewtocolNet
     /// </summary>
     public static class Mewtocol {
 
-        #region Build Order 1
+        #region Data Access
+
+        /// <summary>
+        /// Lists all usable COM port names
+        /// </summary>
+        /// <returns></returns>
+        public static IEnumerable<string> GetSerialPortNames () => SerialPort.GetPortNames();
+
+        /// <summary>
+        /// Lists all usable serial baud rates
+        /// </summary>
+        /// <returns></returns>
+        public static IEnumerable<int> GetUseableBaudRates() => Enum.GetValues(typeof(BaudRate)).Cast<BaudRate>().Select(x => (int)x);
+
+        /// <summary>
+        /// Lists all useable source endpoints of the device this is running on for usage with PLCs
+        /// </summary>
+        public static IEnumerable<IPEndPoint> GetSourceEndpoints() {
+
+            foreach (var netIf in GetUseableNetInterfaces()) {
+
+                var addressInfo = netIf.GetIPProperties().UnicastAddresses
+                .FirstOrDefault(x => x.Address.AddressFamily == AddressFamily.InterNetwork);
+
+                yield return new IPEndPoint(addressInfo.Address, 9094);
+
+            }
+
+        }
+
+        /// <summary>
+        /// Lists all useable network interfaces of the device this is running on for usage with PLCs
+        /// </summary>
+        public static IEnumerable<NetworkInterface> GetUseableNetInterfaces() {
+
+            foreach (NetworkInterface netInterface in NetworkInterface.GetAllNetworkInterfaces()) {
+
+                bool isEthernet =
+                netInterface.NetworkInterfaceType == NetworkInterfaceType.Ethernet ||
+                netInterface.NetworkInterfaceType == NetworkInterfaceType.Ethernet3Megabit ||
+                netInterface.NetworkInterfaceType == NetworkInterfaceType.FastEthernetFx ||
+                netInterface.NetworkInterfaceType == NetworkInterfaceType.FastEthernetT ||
+                netInterface.NetworkInterfaceType == NetworkInterfaceType.GigabitEthernet;
+
+                bool isWlan = netInterface.NetworkInterfaceType == NetworkInterfaceType.Wireless80211;
+
+                bool isUsable = netInterface.OperationalStatus == OperationalStatus.Up;
+
+                if (!isUsable) continue;
+                if (!(isWlan || isEthernet)) continue;
+
+                IPInterfaceProperties ipProps = netInterface.GetIPProperties();
+                var hasUnicastInfo = ipProps.UnicastAddresses
+                .Any(x => x.Address.AddressFamily == AddressFamily.InterNetwork);
+
+                if (!hasUnicastInfo) continue;
+
+                yield return netInterface;
+
+            }
+
+        }
+
+        #endregion
+
+        #region Interface building step 1
 
         /// <summary>
         /// Builds a ethernet based Mewtocol Interface
@@ -92,58 +157,9 @@ namespace MewtocolNet
 
         }
 
-        /// <summary>
-        /// Lists all useable source endpoints of the device this is running on for usage with PLCs
-        /// </summary>
-        public static IEnumerable<IPEndPoint> GetSourceEndpoints () {
-
-            foreach (var netIf in GetUseableNetInterfaces()) {
-
-                var addressInfo = netIf.GetIPProperties().UnicastAddresses
-                .FirstOrDefault(x => x.Address.AddressFamily == AddressFamily.InterNetwork);
-
-                yield return new IPEndPoint(addressInfo.Address, 9094);
-
-            }
-
-        }
-
-        /// <summary>
-        /// Lists all useable network interfaces of the device this is running on for usage with PLCs
-        /// </summary>
-        public static IEnumerable<NetworkInterface> GetUseableNetInterfaces () {
-
-            foreach (NetworkInterface netInterface in NetworkInterface.GetAllNetworkInterfaces()) {
-
-                bool isEthernet =
-                netInterface.NetworkInterfaceType == NetworkInterfaceType.Ethernet ||
-                netInterface.NetworkInterfaceType == NetworkInterfaceType.Ethernet3Megabit ||
-                netInterface.NetworkInterfaceType == NetworkInterfaceType.FastEthernetFx ||
-                netInterface.NetworkInterfaceType == NetworkInterfaceType.FastEthernetT ||
-                netInterface.NetworkInterfaceType == NetworkInterfaceType.GigabitEthernet;
-
-                bool isWlan = netInterface.NetworkInterfaceType == NetworkInterfaceType.Wireless80211;
-
-                bool isUsable = netInterface.OperationalStatus == OperationalStatus.Up;
-
-                if (!isUsable) continue;
-                if (!(isWlan || isEthernet)) continue;
-
-                IPInterfaceProperties ipProps = netInterface.GetIPProperties();
-                var hasUnicastInfo = ipProps.UnicastAddresses
-                .Any(x => x.Address.AddressFamily == AddressFamily.InterNetwork);
-
-                if (!hasUnicastInfo) continue;
-
-                yield return netInterface;
-
-            }
-
-        }
-
         #endregion
 
-        #region Build Order 2
+        #region Interface building step 2
 
         public class PollLevelConfigurator {
 
@@ -389,7 +405,7 @@ namespace MewtocolNet
 
         #endregion
 
-        #region BuildLevel 3
+        #region Interface building step 3
 
         public class EndInit<T> {
 

MewtocolNet/MewtocolFrameResponse.cs

@@ -1,6 +1,7 @@
-using MewtocolNet.Helpers;
+using MewtocolNet.DataLists;
 
-namespace MewtocolNet {
+namespace MewtocolNet
+{
 
     public struct MewtocolFrameResponse {
 

MewtocolNet/MewtocolInterface.cs

@@ -69,6 +69,8 @@ namespace MewtocolNet {
         internal volatile bool pollerFirstCycle;
         internal bool usePoller = false;
         internal MemoryAreaManager memoryManager;
+        private volatile bool isReceiving;
+        private volatile bool isSending;
 
         #endregion
 
@@ -101,6 +103,15 @@ namespace MewtocolNet {
         /// <inheritdoc/>
         public int StationNumber => stationNumber;
 
+        /// <inheritdoc/>
+        public bool IsSending {
+            get => isSending;
+            private set {
+                isSending = value;
+                OnPropChange();
+            }
+        }
+
         /// <inheritdoc/>
         public int BytesPerSecondUpstream {
             get { return bytesPerSecondUpstream; }
@@ -110,6 +121,15 @@ namespace MewtocolNet {
             }
         }
 
+        /// <inheritdoc/>
+        public bool IsReceiving { 
+            get => isReceiving; 
+            private set {
+                isReceiving = value;
+                OnPropChange();
+            }
+        }
+
         /// <inheritdoc/>
         public int BytesPerSecondDownstream {
             get { return bytesPerSecondDownstream; }
@@ -148,14 +168,13 @@ namespace MewtocolNet {
 
             memoryManager = new MemoryAreaManager(this);
 
+            WatchPollerDemand();
+
             Connected += MewtocolInterface_Connected;
             RegisterChanged += OnRegisterChanged;
 
             void MewtocolInterface_Connected(object sender, PlcConnectionArgs args) {
 
-                if (usePoller)
-                    AttachPoller();
-
                 IsConnected = true;
 
             }
@@ -290,10 +309,14 @@ namespace MewtocolNet {
 
                 SetUpstreamStopWatchStart();
 
+                IsSending = true;
+
                 //write inital command
                 byte[] writeBuffer = Encoding.UTF8.GetBytes(frame);
                 stream.Write(writeBuffer, 0, writeBuffer.Length);
 
+                IsSending = false;
+
                 //calculate the expected number of frames from the message request
                 int? wordsCountRequested = null;
                 if (onReceiveProgress != null) {
@@ -391,7 +414,9 @@ namespace MewtocolNet {
                     SetDownstreamStopWatchStart();
 
                     byte[] buffer = new byte[RecBufferSize];
+                    IsReceiving = true;
                     int bytesRead = await stream.ReadAsync(buffer, 0, buffer.Length);
+                    IsReceiving = false;
 
                     CalcDownstreamSpeed(bytesRead);
 
@@ -411,7 +436,9 @@ namespace MewtocolNet {
 
                         //request next frame
                         var writeBuffer = Encoding.UTF8.GetBytes($"%{GetStationNumber()}**&\r");
+                        IsSending = true;
                         await stream.WriteAsync(writeBuffer, 0, writeBuffer.Length);
+                        IsSending = false;
                         Logger.Log($">> Requested next frame", LogLevel.Critical, this);
                         wasMultiFramedResponse = true;
 
@@ -527,6 +554,8 @@ namespace MewtocolNet {
 
         private protected virtual void OnDisconnect() {
 
+            IsReceiving = false;
+            IsSending = false;
             BytesPerSecondDownstream = 0;
             BytesPerSecondUpstream = 0;
             PollerCycleDurationMs = 0;

MewtocolNet/MewtocolInterfaceRegisterHandling.cs

@@ -17,6 +17,8 @@ namespace MewtocolNet {
     /// </summary>
     public abstract partial class MewtocolInterface {
 
+        internal Task heartbeatTask = Task.CompletedTask;
+
         internal Task pollCycleTask;
 
         private List<RegisterCollection> registerCollections = new List<RegisterCollection>();
@@ -39,15 +41,48 @@ namespace MewtocolNet {
             }
         }
 
+        private System.Timers.Timer heartBeatTimer = new System.Timers.Timer();
+
         #region Register Polling
 
+        internal void WatchPollerDemand() {
+
+            memoryManager.MemoryLayoutChanged += () => TestPollerStartNeeded();
+
+            Connected += (s, e) => TestPollerStartNeeded();
+
+            Disconnected += (s, e) => {
+
+                heartBeatTimer.Elapsed -= PollTimerTick;
+                heartBeatTimer.Stop();
+            
+            };
+
+        }
+
+        private void TestPollerStartNeeded () {
+
+            if (!IsConnected) return;
+
+            heartBeatTimer.Interval = 3000;
+            heartBeatTimer.Elapsed += PollTimerTick;
+            heartBeatTimer.Start();
+
+            if (!usePoller) return;
+
+            bool hasCyclic = memoryManager.HasCyclicPollableRegisters();
+            bool hasFirstCycle = memoryManager.HasSingleCyclePollableRegisters();
+
+            if (hasCyclic || hasFirstCycle) AttachPoller();
+
+        }
+
         /// <summary>
         /// Kills the poller completely
         /// </summary>
         internal void KillPoller() {
 
             pollerTaskStopped = true;
-            ClearRegisterVals();
 
         }
 
@@ -56,8 +91,7 @@ namespace MewtocolNet {
         /// </summary>
         internal void AttachPoller() {
 
-            if (!pollerTaskStopped)
-                return;
+            if (!pollerTaskStopped) return;
 
             PollerCycleDurationMs = 0;
             pollerFirstCycle = true;
@@ -66,6 +100,15 @@ namespace MewtocolNet {
 
         }
 
+        private void PollTimerTick(object sender, System.Timers.ElapsedEventArgs e) {
+
+            heartbeatTask = Task.Run(async () => {
+                Logger.LogVerbose("Sending heartbeat", this);
+                await GetPLCInfoAsync();
+            });
+
+        }
+
         /// <summary>
         /// Runs a single poller cycle manually,
         /// useful if you want to use a custom update frequency
@@ -86,10 +129,11 @@ namespace MewtocolNet {
 
         }
 
-        //polls all registers one by one (slow)
+        //performs one poll cycle, one cycle is defined as getting all regster values
+        //and (not every cycle) the status of the plc that is performed on a timer basis
         internal async Task Poll() {
 
-            Logger.Log("Poller is attaching", LogLevel.Info, this);
+            Logger.Log("Poller is attaching", this);
 
             pollerTaskStopped = false;
 
@@ -100,37 +144,40 @@ namespace MewtocolNet {
                 pollCycleTask = OnMultiFrameCycle();
                 await pollCycleTask;
 
+                InvokePolledCycleDone();
+
                 if (!IsConnected) {
                     pollerTaskStopped = true;
                     return;
                 }
 
                 pollerFirstCycle = false;
-                InvokePolledCycleDone();
-
+                
             }
 
         }
 
         private async Task OnMultiFrameCycle() {
 
+            //await the timed task before starting a new poller cycle
+            if (!heartbeatTask.IsCompleted) await heartbeatTask;
+
             var sw = Stopwatch.StartNew();
 
-            //await UpdateRCPRegisters();
-
-            //await UpdateDTRegisters();
-
             await memoryManager.PollAllAreasAsync();
 
             sw.Stop();
             PollerCycleDurationMs = (int)sw.ElapsedMilliseconds;
 
+            if (!memoryManager.HasCyclicPollableRegisters()) KillPoller();
+
         }
 
         #endregion
 
         #region Smart register polling methods
 
+        [Obsolete]
         private async Task UpdateRCPRegisters() {
 
             //build booleans

MewtocolNet/PLCInfo.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.ComponentModel;
 using System.Globalization;
 using System.Linq;
@@ -56,9 +57,17 @@ namespace MewtocolNet {
                 operationMode = value;
                 OnPropChange();
                 OnPropChange(nameof(IsRunMode));
+                OnPropChange(nameof(OperationModeTags));
             }
         }
 
+        /// <summary>
+        /// A list of operation mode tags, derived from the OPMode flags
+        /// </summary>
+        public IEnumerable<string> OperationModeTags {
+            get => OperationMode.ToString().Split(',').Select(x => x.JoinSplitByUpperCase().Trim());
+        }
+
         /// <summary>
         /// Hardware information flags about the PLC
         /// </summary>
@@ -67,10 +76,17 @@ namespace MewtocolNet {
             internal set {
                 hardwareInformation = value;
                 OnPropChange();
-
+                OnPropChange(nameof(HardwareInformationTags));
             }
         }
 
+        /// <summary>
+        /// A list of hardware info tags, derived from the HardwareInformation flags
+        /// </summary>
+        public IEnumerable<string> HardwareInformationTags {
+            get => HardwareInformation.ToString().Split(',').Select(x => x.JoinSplitByUpperCase().Trim());
+        }
+
         /// <summary>
         /// Current error code of the PLC
         /// </summary>
@@ -91,15 +107,34 @@ namespace MewtocolNet {
 
         internal bool TryExtendFromEXRT(string msg) {
 
-            var regexEXRT = new Regex(@"\%EE\$EX00RT00(?<icnt>..)(?<mc>..)..(?<cap>..)(?<op>..)..(?<flg>..)(?<sdiag>....)(?<ver>..)(?<hwif>..)(?<nprog>.)(?<progsz>....)(?<hdsz>....)(?<sysregsz>....).*", RegexOptions.IgnoreCase);
+            var regexEXRT = new Regex(@"\%EE\$EX00RT00(?<icnt>..)(?<mc>..)..(?<cap>..)(?<op>..)..(?<flg>..)(?<sdiag>....)(?<ver>..)(?<hwif>..)(?<nprog>.)(?<csumpz>...)(?<psize>...).*", RegexOptions.IgnoreCase);
             var match = regexEXRT.Match(msg);
             if (match.Success) {
 
+                //overwrite the typecode
                 byte typeCodeByte = byte.Parse(match.Groups["mc"].Value, NumberStyles.HexNumber);
                 var overWriteBytes = BitConverter.GetBytes((int)this.TypeCode);
                 overWriteBytes[0] = typeCodeByte;
 
-                this.TypeCode = (PlcType)BitConverter.ToInt32(overWriteBytes, 0);
+                //get the long (4 bytes) prog size 
+                if (match.Groups["psize"]?.Value != null) {
+
+                    var padded = match.Groups["psize"].Value.PadLeft(4, '0');
+
+                    overWriteBytes[1] = byte.Parse(padded.Substring(2, 2), NumberStyles.HexNumber);
+                    overWriteBytes[2] = byte.Parse(padded.Substring(0, 2), NumberStyles.HexNumber);
+
+                }
+
+                var tempTypeCode = BitConverter.ToUInt32(overWriteBytes, 0);
+
+                if (Enum.IsDefined(typeof(PlcType), tempTypeCode)) {
+
+                    this.TypeCode = (PlcType)tempTypeCode;
+                
+                }
+                
+                //overwrite the other vals that are also contained in EXRT
                 this.CpuVersion = match.Groups["ver"].Value.Insert(1, ".");
                 this.HardwareInformation = (HWInformation)byte.Parse(match.Groups["hwif"].Value, NumberStyles.HexNumber);
 
@@ -119,20 +154,29 @@ namespace MewtocolNet {
 
                 byte typeCodeByte = byte.Parse(match.Groups["cputype"].Value, NumberStyles.HexNumber);
                 byte capacity = byte.Parse(match.Groups["cap"].Value, NumberStyles.Number);
-                var typeCodeFull = (PlcType)BitConverter.ToInt32(new byte[] { typeCodeByte, capacity, 0, 0}, 0);
+                var tempTypeCode = (PlcType)BitConverter.ToUInt32(new byte[] { typeCodeByte, capacity, 0, 0}, 0);
 
                 float definedProgCapacity = 0;
-                var composedNow = typeCodeFull.ToNameDecompose();
+                PlcType typeCodeFull;
 
-                if (composedNow != null) {
+                if (Enum.IsDefined(typeof(PlcType), tempTypeCode)) {
 
-                    //already recognized the type code, use the capacity value encoded in the enum
-                    definedProgCapacity = composedNow.Size;
+                    typeCodeFull = (PlcType)tempTypeCode;
+
+                    var composedNow = typeCodeFull.ToNameDecompose();
+
+                    if (composedNow != null) {
+
+                        //already recognized the type code, use the capacity value encoded in the enum
+                        definedProgCapacity = composedNow.Size;
+
+                    }
 
                 } else {
 
+                    typeCodeFull = PlcType.Unknown;
                     definedProgCapacity = int.Parse(match.Groups["cap"].Value);
-                
+
                 }
 
                 inf = new PLCInfo {
@@ -147,7 +191,7 @@ namespace MewtocolNet {
 
             }
 
-            inf = default(PLCInfo);
+            inf = default;
             return false;
 
         }
@@ -192,7 +236,7 @@ namespace MewtocolNet {
 
         }
 
-        public override int GetHashCode() => GetHashCode();
+        public override int GetHashCode() => base.GetHashCode();
 
         private protected void OnPropChange([CallerMemberName] string propertyName = null) {
 

MewtocolNet/PublicEnums/PlcType.cs

@@ -21,6 +21,11 @@ namespace MewtocolNet {
     /// </summary>
     public enum PlcType : uint {
 
+        /// <summary>
+        /// Fallback plc type
+        /// </summary>
+        Unknown = 0,
+
         //NON SIMULATION TEST POSSIBLE
         #region FP5 Family (Legacy)
 

MewtocolNet/UnderlyingRegisters/MemoryAreaManager.cs

@@ -11,6 +11,8 @@ namespace MewtocolNet.UnderlyingRegisters {
 
     internal class MemoryAreaManager {
 
+        internal event Action MemoryLayoutChanged;
+
         internal int maxOptimizationDistance = 8;
         internal int maxRegistersPerGroup = -1;
         internal PollLevelOverwriteMode pollLevelOrMode = PollLevelOverwriteMode.Highest;
@@ -20,7 +22,27 @@ namespace MewtocolNet.UnderlyingRegisters {
 
         internal MewtocolInterface mewInterface;
         internal List<PollLevel> pollLevels;
-        internal Dictionary<int, PollLevelConfig> pollLevelConfigs = new Dictionary<int, PollLevelConfig>();
+
+        internal Dictionary<int, PollLevelConfig> pollLevelConfigs = new Dictionary<int, PollLevelConfig>() {
+            { 
+                MewtocolNet.PollLevel.Always, 
+                new PollLevelConfig {
+                    skipNth = 1,
+                }
+            },
+            {
+                MewtocolNet.PollLevel.FirstIteration, 
+                new PollLevelConfig {
+                    skipAllButFirst = true
+                }
+            },
+            {
+                MewtocolNet.PollLevel.Never, 
+                new PollLevelConfig {
+                    skipsAll = true,
+                }
+            }
+        };
 
         private uint pollIteration = 0;
 
@@ -36,11 +58,7 @@ namespace MewtocolNet.UnderlyingRegisters {
 
             wrAreaSize = wrSize;
             dtAreaSize = dtSize;
-            pollLevels = new List<PollLevel> {
-                new PollLevel(wrSize, dtSize) {
-                    level = 1,
-                }
-            };
+            pollLevels = new List<PollLevel>();
 
         }
 
@@ -89,7 +107,20 @@ namespace MewtocolNet.UnderlyingRegisters {
             }
 
             //order 
-            foreach (var lvl in pollLevels) {
+            for (int i = 0; i < pollLevels.Count; i++) {
+
+                PollLevel lvl = pollLevels[i];
+
+                //poll level has no areas
+                if(lvl.dataAreas.Count == 0 &&
+                   lvl.externalRelayInAreas.Count == 0 &&
+                   lvl.externalRelayOutAreas.Count == 0 &&
+                   lvl.internalRelayAreas.Count == 0) {
+
+                    pollLevels.Remove(lvl);
+                    continue;
+
+                }
 
                 foreach (var area in lvl.dataAreas) {
 
@@ -101,28 +132,12 @@ namespace MewtocolNet.UnderlyingRegisters {
 
             }
 
+            MemoryLayoutChanged?.Invoke();
+
         }
 
         private void TestPollLevelExistence(Register reg) {
 
-            if (!pollLevelConfigs.ContainsKey(MewtocolNet.PollLevel.Always)) {
-                pollLevelConfigs.Add(MewtocolNet.PollLevel.Always, new PollLevelConfig {
-                    skipNth = 1,
-                });
-            }
-
-            if (!pollLevelConfigs.ContainsKey(MewtocolNet.PollLevel.FirstIteration)) {
-                pollLevelConfigs.Add(MewtocolNet.PollLevel.FirstIteration, new PollLevelConfig {
-                    skipAllButFirst = true
-                });
-            }
-
-            if (!pollLevelConfigs.ContainsKey(MewtocolNet.PollLevel.Never)) {
-                pollLevelConfigs.Add(MewtocolNet.PollLevel.Never, new PollLevelConfig {
-                    skipsAll = true,
-                });
-            }
-
             if (!pollLevels.Any(x => x.level == reg.pollLevel)) {
 
                 pollLevels.Add(new PollLevel(wrAreaSize, dtAreaSize) {
@@ -354,13 +369,6 @@ namespace MewtocolNet.UnderlyingRegisters {
 
             }
 
-            //get the plc status each n iterations
-            if (pollIteration % 5 == 0) {
-
-                await mewInterface.GetPLCInfoAsync();
-
-            }
-
             if (pollIteration == uint.MaxValue) {
                 pollIteration = uint.MinValue;
             } else {
@@ -494,6 +502,23 @@ namespace MewtocolNet.UnderlyingRegisters {
 
         }
 
+        internal bool HasSingleCyclePollableRegisters() {
+
+            bool hasCyclicPollableLevels = pollLevels.Any(x => x.level != MewtocolNet.PollLevel.FirstIteration);
+
+            return hasCyclicPollableLevels;
+
+        }
+
+        internal bool HasCyclicPollableRegisters () {
+
+            bool hasCyclicPollableLevels = pollLevels
+            .Any(x => x.level != MewtocolNet.PollLevel.Never && x.level != MewtocolNet.PollLevel.FirstIteration &&  x.level != 0);
+
+            return hasCyclicPollableLevels;
+
+        }
+
     }
 
 }

MewtocolTests/TestLinkedLists.cs

@@ -1,10 +1,10 @@
 using MewtocolNet;
 using Xunit;
 using Xunit.Abstractions;
+using MewtocolNet.DataLists;
 
-using MewtocolNet.Helpers;
-
-namespace MewtocolTests {
+namespace MewtocolTests
+{
 
     public class TestLinkedLists {