diff --git a/src/setting_defines.h b/src/setting_defines.h
--- a/src/setting_defines.h
+++ b/src/setting_defines.h
@@ -25,6 +25,7 @@ const char SettingGroup_Port[] = "Port";
 const char SettingGroup_DataFormat[] = "DataFormat";
 const char SettingGroup_Binary[] = "DataFormat_Binary";
 const char SettingGroup_ASCII[] = "DataFormat_ASCII";
+const char SettingGroup_CustomFrame[] = "DataFormat_CustomFrame";
 const char SettingGroup_Channels[] = "Channels";
 const char SettingGroup_Plot[] = "Plot";
 const char SettingGroup_Commands[] = "Commands";
@@ -54,4 +55,14 @@ const char SG_Binary_Endianness[] = "end
 // ascii reader keys
 const char SG_ASCII_NumOfChannels[] = "numOfChannels";
 
+// framed reader keys
+const char SG_CustomFrame_NumOfChannels[] = "numOfChannels";
+const char SG_CustomFrame_FrameStart[] = "frameStart";
+const char SG_CustomFrame_FixedSize[] = "fixedSize";
+const char SG_CustomFrame_FrameSize[] = "frameSize";
+const char SG_CustomFrame_NumberFormat[] = "numberFormat";
+const char SG_CustomFrame_Endianness[] = "endianness";
+const char SG_CustomFrame_Checksum[] = "checksum";
+const char SG_CustomFrame_DebugMode[] = "debugMode";
+
 #endif // SETTING_DEFINES_H