diff --git a/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml b/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml
index 90ddc3f..23ecc20 100644
--- a/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml
+++ b/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml
@@ -4,9 +4,9 @@
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:PamhagenSysCtrl.Windows"
-        Title="Schema - Anlagensteuerung Pamhagen" Height="800" Width="1600">
+        Title="Schema - Anlagensteuerung Pamhagen" Height="800" Width="1600" MinWidth="1500" MinHeight="800">
     <Grid MouseMove="SchemeCanvas_MouseMove" MouseLeftButtonDown="SchemeCanvas_MouseLeftButtonDown" MouseLeftButtonUp="SchemeCanvas_MouseLeftButtonUp">
-        <Canvas x:Name="SchemeCanvas">
+        <Canvas x:Name="SchemeCanvas" Width="1550" Height="750" VerticalAlignment="Center" HorizontalAlignment="Center" SnapsToDevicePixels="True">
         </Canvas>
     </Grid>
 </Window>