diff --git a/fhem/contrib/ch.eick/Klimaanlage/MHI_Heavy.txt b/fhem/contrib/ch.eick/Klimaanlage/MHI_Heavy.txt
index 078d0f3dc..8d2bfc542 100644
--- a/fhem/contrib/ch.eick/Klimaanlage/MHI_Heavy.txt
+++ b/fhem/contrib/ch.eick/Klimaanlage/MHI_Heavy.txt
@@ -117,5 +117,147 @@ attr MHI_Heavy showBody 1
 attr MHI_Heavy showError 1
 attr MHI_Heavy sortby 212
 attr MHI_Heavy timeout 7
-attr MHI_Heavy userReadings contents_airconStat_test:contents_airconStat.* { my $airconStat = encode_base64(ReadingsVal("$NAME","contents_airconStat","")) ;; $airconStat =~ s/\n//g ;; $airconStat }
+attr MHI_Heavy userReadings contents_airconStat_Status:contents_airconStat:.* {\
+ use MIME::Base64;;\
+\
+    my $dev = "MHI_Heavy";;\
+    my $hash = $defs{$dev};;\
+\
+    # Rohdaten aus Reading holen\
+    my $raw = ReadingsVal($dev,"contents_airconStat","");;\
+    return if($raw eq "");;\
+\
+    # Base64 decodieren\
+    my $bytes = decode_base64($raw);;\
+    my @b = unpack("C*", $bytes);;\
+\
+    # --- Debug: Alle Bytes anzeigen ---\
+    my $hex = join " ", map { sprintf "%02X", $_ } @b;;\
+    Log 1, "Aircon Debug Bytes: $hex";;\
+\
+    # --- Power: Byte 2, Bit 0 ---\
+    my $power = ($b[2] & 0x01) ? "On" : "Off";;\
+\
+    # --- Mode ---\
+  # Mode aus Byte 26\
+   my ($index) = grep { $b[$_] == 0x81 && $b[$_+1] == 0x04 } 0..$#b-1;;\
+   my $modeByte = $b[$index+2];;\
+    my %modeMap = (\
+      0x01 => "Auto",\
+      0x09 => "Cool",\
+      0x11 => "Heat",\
+      0x0D => "Fan",\
+      0x05 => "Dry",\
+);;\
+my $mode = exists $modeMap{$modeByte} ? $modeMap{$modeByte} : "Unknown";;\
+\
+  # === Temperaturen ===\
+    my $setTemp  = $b[29] / 2;;   # Solltemperatur\
+\
+\
+  # === RoomTemp (Bytes 45+46 Little Endian) ===\
+    my $roomTemp = (($b[46] << 8) + $b[45]) / 1585;;  # Skalierung passend für App-Werte\
+\
+    # === Außentemperatur (Bytes 30,31) ===\
+    my $outTemp = (($b[31] << 8) + $b[33]) / 10;;  # Zehntelgrad °C\
+\
+    # --- Fan ---\
+    my $fanbyte = $b[3] & 0x0F;;\
+    my %fanmap = (\
+      0x0F => "Auto",\
+      0x08 => "1",\
+      0x09 => "2",\
+      0x0A => "3",\
+      0x0E => "4"\
+);;\
+my $fan = $fanmap{$fanbyte} // "Unknown";;\
+\
+    # --- Swing / Lamellen ---\
+    #-------- Vertikal------\
+    my $b2 = $b[2];;\
+    my $b3 = $b[3];;\
+\
+my %vertical_map = (\
+    0 => 'auto',\
+    1 => 'highest',\
+    2 => 'middle',\
+    3 => 'normal',\
+    4 => 'lowest',\
+);;\
+\
+my $vert;;\
+\
+# Erkennen anhand von Byte 2 & 3\
+if ( ($b2 & 0xC0) == 0xC0 && ($b3 & 0x80) == 0x80 ) {\
+    $vert = $vertical_map{0};;\
+} else {\
+    my $pos;;\
+    if    ( ($b3 & 0xB0) == 0x80 ) { $pos = 1;; } # highest\
+    elsif ( ($b3 & 0xB0) == 0x90 ) { $pos = 2;; } # middle\
+    elsif ( ($b3 & 0xB0) == 0xA0 ) { $pos = 3;; } # normal\
+    elsif ( ($b3 & 0xB0) == 0xB0 ) { $pos = 4;; } # lowest\
+    else { $pos = -1;; }\
+\
+    $vert = defined $vertical_map{$pos} ? $vertical_map{$pos} : "unknown";;\
+}\
+\
+# ----- Horizontal ---------\
+\
+#Horizontale Lamellenstellung aus Bytes dekodieren\
+# Byte 11 und 12 enthalten die horizontale Windrichtung\
+my $b11 = $b[11];;\
+my $b12 = $b[12];;\
+\
+my %horizontal_map = (\
+  0 => 'auto',\
+  1 => 'left-left',\
+  2 => 'left-center',\
+  3 => 'center-center',\
+  4 => 'center-right',\
+  5 => 'right-right',\
+  6 => 'left-right',\
+  7 => 'right-left',\
+);;\
+\
+my $hor;;\
+\
+# Prüfen, ob Auto/Swing aktiv ist\
+if ( ($b12 & 0x03) == 0x03 ) {\
+    $hor = $horizontal_map{0};; # auto\
+} else {\
+    # untere 4 Bits von Byte 11 enthalten Positionscode (0x10–0x16)\
+    my $pos = ($b11 & 0x0F);;\
+    # 0x10 -> 0, 0x11 -> 1, ..., 0x16 -> 6\
+    $hor = $horizontal_map{$pos} // "unknown";;\
+}\
+ \
+# ab hier muss noch weiteres Reverseenginnering betrieben werden.\
+ \
+\
+    # --- Humidity ---\
+    my $humidity = $b[5];; # direktes Byte, %\
+\
+    # --- LED ---\
+    my $led = $b[6];;\
+\
+    # --- Energie kWh ---\
+    my $energy = ($b[10]<<8 | $b[11])/10;;  # Beispielberechnung\
+\
+    # --- Readings setzen ---\
+    readingsBeginUpdate($hash);;\
+    readingsBulkUpdate($hash,"contents_airconStat_Power",$power);;\
+    readingsBulkUpdate($hash,"contents_airconStat_Mode",$mode);;\
+    readingsBulkUpdate($hash,"contents_airconStat_Fan",$fan);;\
+    readingsBulkUpdate($hash,"contents_airconStat_LamelleVert",$vert);;\
+    readingsBulkUpdate($hash,"contents_airconStat_LamelleHor",$hor);;\
+    readingsBulkUpdate($hash,"contents_airconStat_TempRoom",sprintf("%.1f",$roomTemp));;\
+    readingsBulkUpdate($hash,"contents_airconStat_TempOut",sprintf("%.1f",$outTemp));;\
+    readingsBulkUpdate($hash,"contents_airconStat_TempSet",sprintf("%.1f",$setTemp));;\
+    readingsBulkUpdate($hash,"contents_airconStat_Humidity",$humidity);;\
+    readingsBulkUpdate($hash,"contents_airconStat_LED",$led);;\
+    readingsBulkUpdate($hash,"contents_airconStat_Energy_kWh",sprintf("%.1f",$energy));;\
+    readingsEndUpdate($hash,1);;\
+\
+    return 1;;\
+}
 attr MHI_Heavy verbose 5
\ No newline at end of file