From 49d7237c7958e6e2eeed513ce6f6069cfacb06ae Mon Sep 17 00:00:00 2001
From: ig <ig ig@devnullmail.com>
Date: Tue, 20 Jun 2023 09:50:47 +0200
Subject: [PATCH] introduce AmptStatus.Null

---
 csharp/Lib/Devices/AMPT/AmptStatus.cs | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/csharp/Lib/Devices/AMPT/AmptStatus.cs b/csharp/Lib/Devices/AMPT/AmptStatus.cs
index 6f1b2af0d..2b3df5422 100644
--- a/csharp/Lib/Devices/AMPT/AmptStatus.cs
+++ b/csharp/Lib/Devices/AMPT/AmptStatus.cs
@@ -1,18 +1,19 @@
-using InnovEnergy.Lib.StatusApi.DeviceTypes;
 using InnovEnergy.Lib.Units.Composite;
 
 namespace InnovEnergy.Lib.Devices.AMPT;
 
-public class AmptStatus : IMppt
+public class AmptStatus 
 {
-    public AmptStatus(DcBus dc, IReadOnlyList<DcBus> strings)
+    public AmptStatus(DcBus? dc, IReadOnlyList<DcBus> strings)
     {
         Dc = dc;
         Strings = strings;
     }
 
-    public DcBus Dc { get; }
+    public DcBus? Dc { get; }
     public IReadOnlyList<DcBus> Strings { get; }
+    
+    public static AmptStatus Null { get; } = new AmptStatus(null, Array.Empty<DcBus>());
 }