diff --git a/csharp/Lib/Protocols/Modbus/Protocol/Frames/Accessors/Accessors.cs b/csharp/Lib/Protocols/Modbus/Protocol/Frames/Accessors/Accessors.cs
index 92282070e..45f8f8b6a 100644
--- a/csharp/Lib/Protocols/Modbus/Protocol/Frames/Accessors/Accessors.cs
+++ b/csharp/Lib/Protocols/Modbus/Protocol/Frames/Accessors/Accessors.cs
@@ -8,10 +8,7 @@ public static class Accessors
     public static MbByte    ByteAt   (this ArraySegment<Byte> data, Byte i) => new MbByte(data, i);
     public static MbWord    WordAt   (this ArraySegment<Byte> data, Byte i) => new MbWord(data, i);
     public static MbAddress AddressAt(this ArraySegment<Byte> data, Byte i) => new MbAddress(data, i);
-
-    public static MbRegisters RegistersAt(this ArraySegment<Byte> data, Byte i) => new MbRegisters(data, i);
-    public static MbBits      BitsAt     (this ArraySegment<Byte> data, Byte i) => new MbBits(data, i);
-    
-
+    public static MbWords   WordsAt  (this ArraySegment<Byte> data, Byte i) => new MbWords(data, i);
+    public static MbBits    BitsAt   (this ArraySegment<Byte> data, Byte i) => new MbBits(data, i);
     public static MbByte<T> ByteAt<T>(this ArraySegment<Byte> data,Byte i) where T : struct, IConvertible => new MbByte<T>(data, i);
 }
\ No newline at end of file
diff --git a/csharp/Lib/Protocols/Modbus/Protocol/Frames/Accessors/MbRegisters.cs b/csharp/Lib/Protocols/Modbus/Protocol/Frames/Accessors/MbWords.cs
similarity index 71%
rename from csharp/Lib/Protocols/Modbus/Protocol/Frames/Accessors/MbRegisters.cs
rename to csharp/Lib/Protocols/Modbus/Protocol/Frames/Accessors/MbWords.cs
index a2124a9fa..fdc7be0c2 100644
--- a/csharp/Lib/Protocols/Modbus/Protocol/Frames/Accessors/MbRegisters.cs
+++ b/csharp/Lib/Protocols/Modbus/Protocol/Frames/Accessors/MbWords.cs
@@ -3,20 +3,18 @@ using InnovEnergy.Lib.Utils;
 
 namespace InnovEnergy.Lib.Protocols.Modbus.Protocol.Frames.Accessors;
 
-public readonly struct MbRegisters : IReadOnlyList<UInt16>
+public readonly struct MbWords : IReadOnlyList<UInt16>
 {
     private readonly ArraySegment<Byte> _Data;
 
-    internal MbRegisters(ArraySegment<Byte> data, Byte startIndex) : this(data, startIndex, CountWords(data, startIndex))
+    internal MbWords(ArraySegment<Byte> data, Byte startIndex) : this(data, startIndex, CountWords(data, startIndex))
     { }
 
-
-
-    internal MbRegisters(ArraySegment<Byte> data, Byte startIndex, UInt16 wordCount) : this(data.Array!, startIndex, wordCount)
+    internal MbWords(ArraySegment<Byte> data, Byte startIndex, UInt16 wordCount) : this(data.Array!, startIndex, wordCount)
     {
     }
 
-    internal MbRegisters(Byte[] data, Byte startIndex, UInt16 wordCount)
+    internal MbWords(Byte[] data, Byte startIndex, UInt16 wordCount)
     {
         _Data = new ArraySegment<Byte>(data, startIndex, wordCount * 2);
     }
@@ -62,6 +60,8 @@ public readonly struct MbRegisters : IReadOnlyList<UInt16>
 
     public UInt16 this[Int32 index]
     {
+        // a single register is always big endian (according to standard)
+        
         get
         {
             var i = index * 2;
@@ -71,5 +71,12 @@ public readonly struct MbRegisters : IReadOnlyList<UInt16>
 
             return (UInt16) (hi | lo);
         }
+
+        set
+        {
+             var i = index * 2;
+            _Data[i + 0] = (Byte)(value >> 8);
+            _Data[i + 1] = (Byte)(value & 0xFF);
+        }
     }
 }
\ No newline at end of file