diff --git a/EC-GN-JA-PCF-IN/src/main/resources/qst-gyrotron-fast-controller/Configurations/src/thread2/sdn.marte b/EC-GN-JA-PCF-IN/src/main/resources/qst-gyrotron-fast-controller/Configurations/src/thread2/sdn.marte
index cba0c5e..37ea1ad 100644
--- a/EC-GN-JA-PCF-IN/src/main/resources/qst-gyrotron-fast-controller/Configurations/src/thread2/sdn.marte
+++ b/EC-GN-JA-PCF-IN/src/main/resources/qst-gyrotron-fast-controller/Configurations/src/thread2/sdn.marte
@@ -14,12 +14,15 @@
       //! unused: SDN header has no use in this appliation 
       Header = {
         Type = uint8
-        NumberOfDimensions = 1
-        NumberOfElements = 52
+        NumberOfElements = 48
+      }
+      //! unused: not used for nothing
+      Dummy = {
+        Type = uint8
+        NumberOfElements = 4
       }
       ESDNTime = {
         Type = uint32
-        NumberOfDimensions = 1
         NumberOfElements = 1
       }
       Command = {