diff --git a/S7.Net/Types/Class.cs b/S7.Net/Types/Class.cs
index 0dd78fa..225f3f8 100644
--- a/S7.Net/Types/Class.cs
+++ b/S7.Net/Types/Class.cs
@@ -153,11 +153,9 @@ namespace S7.Net.Types
                     numBytes = Math.Ceiling(numBytes);
                     if ((numBytes / 2 - Math.Floor(numBytes / 2.0)) > 0)
                         numBytes++;
-                    // hier auswerten
-                    uint sourceUInt = DWord.FromBytes(bytes[(int)numBytes + 3],
-                                                                       bytes[(int)numBytes + 2],
-                                                                       bytes[(int)numBytes + 1],
-                                                                       bytes[(int)numBytes + 0]);
+                    var wordBuffer = new byte[4];
+                    Array.Copy(bytes, (int)numBytes, wordBuffer, 0, wordBuffer.Length);
+                    uint sourceUInt = DWord.FromByteArray(wordBuffer);
                     value = sourceUInt.ConvertToInt();
                     numBytes += 4;
                     break;
@@ -165,12 +163,9 @@ namespace S7.Net.Types
                     numBytes = Math.Ceiling(numBytes);
                     if ((numBytes / 2 - Math.Floor(numBytes / 2.0)) > 0)
                         numBytes++;
-                    // hier auswerten
-                    value = DWord.FromBytes(
-                        bytes[(int)numBytes],
-                        bytes[(int)numBytes + 1],
-                        bytes[(int)numBytes + 2],
-                        bytes[(int)numBytes + 3]);
+                    var wordBuffer2 = new byte[4];
+                    Array.Copy(bytes, (int)numBytes, wordBuffer2, 0, wordBuffer2.Length);
+                    value = DWord.FromByteArray(wordBuffer2);
                     numBytes += 4;
                     break;
                 case "Single":