diff --git a/MQTTBatterySDL/module.php b/MQTTBatterySDL/module.php
index 1d8de02..5a01818 100644
--- a/MQTTBatterySDL/module.php
+++ b/MQTTBatterySDL/module.php
@@ -42,7 +42,16 @@ class MQTTBatterySDL extends IPSModule
     {
         parent::ApplyChanges();
 
-        $this->SetReceiveDataFilter('.*');
+        $suffix = $this->ReadPropertyString('TopicSuffix');
+
+        if ($suffix == '') {
+            $this->SetStatus(IS_INACTIVE);
+            return;
+        }
+
+        $filter = '.*"Topic":"(feedback-request|remote-control-request)\/' . preg_quote($suffix, '/') . '".*';
+
+        $this->SetReceiveDataFilter($filter);
 
         $this->SetStatus(IS_ACTIVE);
     }
@@ -327,9 +336,44 @@ class MQTTBatterySDL extends IPSModule
         return $json;
     }
 
-    public function ReceiveData($JSONString)
+public function ReceiveData($JSONString)
 {
-    IPS_LogMessage('MQTTBatterySDL', $JSONString);
+    $data = json_decode($JSONString, true);
+
+    $this->SendDebug('ReceiveData', $JSONString, 0);
+
+    if (!is_array($data)) {
+        return;
+    }
+
+    $topic = $data['Topic'] ?? '';
+    $payload = $data['Payload'] ?? '';
+
+    $suffix = $this->ReadPropertyString('TopicSuffix');
+
+    if ($topic === 'feedback-request/' . $suffix) {
+        $json = $this->BuildReadResponse();
+
+        $this->PublishMQTT(
+            'feedback-response/' . $suffix,
+            $json
+        );
+
+        return;
+    }
+
+    if ($topic === 'remote-control-request/' . $suffix) {
+        $json = $this->HandleRemoteControlJSON($payload);
+
+        if ($json !== null) {
+            $this->PublishMQTT(
+                'remote-control-response/' . $suffix,
+                $json
+            );
+        }
+
+        return;
+    }
 }
 
     private function IsValidVariable(int $id)