diff --git a/VGT_Sub/module.php b/VGT_Sub/module.php
index 5a53ea2..fa39dcd 100644
--- a/VGT_Sub/module.php
+++ b/VGT_Sub/module.php
@@ -4,126 +4,124 @@ declare(strict_types=1);
 
 class VGT_Sub extends IPSModule
 {
+    private bool $Subscribed = false;
+
     public function Create()
     {
         parent::Create();
 
-        $this->RegisterPropertyString("DeviceID", "");
+        // MQTT CLIENT – NICHT Splitter!
+        $this->ConnectParent('{C6D2AEB3-6E1F-4B2E-8E69-3A1A00246850}');
 
-        // --- Variablen für Feedback ---
-        $this->RegisterVariableFloat("PowerProduction", "Power Production", "", 10);
-        $this->RegisterVariableBoolean("IsReady", "Is Ready", "", 11);
-        $this->RegisterVariableBoolean("IsRunning", "Is Running", "", 12);
-        $this->RegisterVariableFloat("StateOfCharge", "State of Charge", "", 13);
-        $this->RegisterVariableFloat("MinSOC", "Min SOC", "", 14);
-        $this->RegisterVariableFloat("MaxSOC", "Max SOC", "", 15);
+        $this->RegisterPropertyString('DeviceID', '');
 
-        // --- Variablen für Remote Control ---
-        $this->RegisterVariableFloat("PowerSetpoint", "Power Setpoint", "", 20);
-        $this->RegisterVariableString("Strategy", "Strategy", "", 21);
+        // Feedback Variablen
+        $this->RegisterVariableFloat('PowerProduction', 'Power Production', '', 10);
+        $this->RegisterVariableFloat('StateOfCharge', 'State of Charge', '', 11);
+        $this->RegisterVariableBoolean('IsRunning', 'Is Running', '', 12);
+        $this->RegisterVariableBoolean('IsReady', 'Is Ready', '', 13);
+        $this->RegisterVariableFloat('MinSOC', 'Min SOC', '', 14);
+        $this->RegisterVariableFloat('MaxSOC', 'Max SOC', '', 15);
 
-        // Debug-Variablen
-        $this->RegisterVariableString("FeedbackRequestPayload", "Feedback Request", "", 90);
-        $this->RegisterVariableString("RemoteControlPayload", "Remote Control Request", "", 91);
+        // Remote Control
+        $this->RegisterVariableFloat('PowerSetpoint', 'Power Setpoint', '', 20);
+        $this->RegisterVariableString('Strategy', 'Strategy', '', 21);
 
-        // MQTT Splitter (NUR dieser ist korrekt)
-        $this->ConnectParent("{F7A0DD2E-7684-95C0-64C2-D2A9DC47577B}");
+        // Debug
+        $this->RegisterVariableString('FeedbackRequestPayload', 'Feedback Request', '', 90);
+        $this->RegisterVariableString('RemoteControlPayload', 'Remote Control', '', 91);
     }
 
     public function ApplyChanges()
     {
         parent::ApplyChanges();
-        $this->ConnectParent("{F7A0DD2E-7684-95C0-64C2-D2A9DC47577B}");
+        $this->ConnectParent('{C6D2AEB3-6E1F-4B2E-8E69-3A1A00246850}');
+        $this->Subscribed = false;
     }
 
-    public function RequestAction($Ident, $Value)
+    private function Log($t, $m)
     {
-        SetValue($this->GetIDForIdent($Ident), $Value);
+        IPS_LogMessage("VGT_Sub/$t", $m);
+        $this->SendDebug($t, $m, 0);
     }
 
-
-    /* =====================================================================================
-     * MQTT Funktionen
-     * ===================================================================================== */
-
-    private function Subscribe(string $topic)
+    private function SafeSend(array $p)
     {
-        $this->SendDataToParent(json_encode([
-            "DataID" => "{F7A0DD2E-7684-95C0-64C2-D2A9DC47577B}",
-            "Buffer" => [
-                "Topic" => $topic,
-                "QualityOfService" => 0
-            ]
-        ]));
+        $parent = @IPS_GetInstance($this->InstanceID)['ConnectionID'] ?? 0;
+        if ($parent === 0) return;
+        if (IPS_GetInstance($parent)['InstanceStatus'] !== 102) return;
+        @$this->SendDataToParent(json_encode($p));
+    }
+
+    private function EnsureSubscribe()
+    {
+        if ($this->Subscribed) return;
+        $this->Subscribed = true;
+
+        $this->SafeSend([
+            'DataID'           => '{043EA491-0325-4ADD-8FC2-A30C8EEB4D3F}',
+            'PacketType'       => 8,
+            'QualityOfService' => 0,
+            'Retain'           => false,
+            'Topic'            => '#',
+            'Payload'          => ''
+        ]);
+
+        $this->Log("Subscribe", "#");
     }
 
     private function Publish(string $topic, string $payload)
     {
-        $this->SendDataToParent(json_encode([
-            "DataID" => "{F7A0DD2E-7684-95C0-64C2-D2A9DC47577B}",
-            "Buffer" => [
-                "Command" => "PUBLISH",
-                "Topic"   => $topic,
-                "Payload" => $payload,
-                "Retain"  => false,
-                "QualityOfService" => 0
-            ]
-        ]));
+        $this->SafeSend([
+            'DataID'           => '{043EA491-0325-4ADD-8FC2-A30C8EEB4D3F}',
+            'PacketType'       => 3,
+            'QualityOfService' => 0,
+            'Retain'           => false,
+            'Topic'            => $topic,
+            'Payload'          => $payload
+        ]);
+
+        $this->Log("Publish", "$topic → $payload");
     }
 
 
-    /* =====================================================================================
-     * ReceiveData – erkennt NUR das tatsächliche Splitter-Format
-     * ===================================================================================== */
     public function ReceiveData($JSONString)
     {
+        $this->EnsureSubscribe();
+
         $data = json_decode($JSONString, true);
-        if (!isset($data["Buffer"])) return;
+        if (!is_array($data)) return;
 
-        $buf = $data["Buffer"];
+        $topic   = $data['Topic']   ?? '';
+        $payload = $data['Payload'] ?? '';
 
-        /* CONNECTED? → Dann subscriben */
-        if (isset($buf["Message"]) && $buf["Message"] === "MQTT_CONNECTED") {
+        if ($topic === '') return;
 
-            $dev = $this->ReadPropertyString("DeviceID");
-            if ($dev) {
-                $this->Subscribe("feedback-request/$dev");
-                $this->Subscribe("remote-control-request/$dev");
-            }
-            return;
-        }
+        $this->Log("RX", "$topic → $payload");
 
-        /* Normale MQTT Message */
-        if (!isset($buf["Topic"]) || !isset($buf["Payload"])) return;
+        $device = $this->ReadPropertyString('DeviceID');
 
-        $topic = $buf["Topic"];
-        $payload = $buf["Payload"];
+        /* ================== FEEDBACK ================== */
 
-        $device = $this->ReadPropertyString("DeviceID");
-
-        /* =====================================================================================
-         * FEEDBACK REQUEST
-         * ===================================================================================== */
         if ($topic === "feedback-request/$device") {
 
-            $this->SetValue("FeedbackRequestPayload", $payload);
+            $this->SetValue('FeedbackRequestPayload', $payload);
 
-            $response = [
+            $resp = [
                 "power_production" => GetValueFloat($this->GetIDForIdent("PowerProduction")),
                 "is_ready"         => GetValueBoolean($this->GetIDForIdent("IsReady")),
                 "is_running"       => GetValueBoolean($this->GetIDForIdent("IsRunning")),
                 "state_of_charge"  => GetValueFloat($this->GetIDForIdent("StateOfCharge")),
                 "min_soc"          => GetValueFloat($this->GetIDForIdent("MinSOC")),
-                "max_soc"          => GetValueFloat($this->GetIDForIdent("MaxSOC")),
+                "max_soc"          => GetValueFloat($this->GetIDForIdent("MaxSOC"))
             ];
 
-            $this->Publish("feedback-response/$device", json_encode($response));
+            $this->Publish("feedback-response/$device", json_encode($resp));
             return;
         }
 
-        /* =====================================================================================
-         * REMOTE CONTROL REQUEST
-         * ===================================================================================== */
+        /* ================== REMOTE CONTROL ================== */
+
         if ($topic === "remote-control-request/$device") {
 
             $this->SetValue("RemoteControlPayload", $payload);
@@ -131,13 +129,11 @@ class VGT_Sub extends IPSModule
             $json = json_decode($payload, true);
             if (!is_array($json)) return;
 
-            if (isset($json["power_setpoint"])) {
+            if (isset($json["power_setpoint"]))
                 SetValueFloat($this->GetIDForIdent("PowerSetpoint"), floatval($json["power_setpoint"]));
-            }
 
-            if (isset($json["strategy"])) {
-                SetValueString($this->GetIDForIdent("Strategy"), strval($json["strategy"]));
-            }
+            if (isset($json["strategy"]))
+                SetValueString($this->GetIDForIdent("Strategy"), $json["strategy"]);
 
             $this->Publish("remote-control-response/$device", json_encode($json));
             return;