diff --git a/src/ATBAPP/DeviceControllerDiag.cpp b/src/ATBAPP/DeviceControllerDiag.cpp
index e781fad..a7d546e 100644
--- a/src/ATBAPP/DeviceControllerDiag.cpp
+++ b/src/ATBAPP/DeviceControllerDiag.cpp
@@ -5,6 +5,9 @@
 #include <QUuid>
 #include <QDebug>
 
+#include "support/JSON.h"
+
+
 DeviceControllerDiag::DeviceControllerDiag(PersistentData *pData, QObject *parent)
     : QObject(parent)
     , coinProcessorType(nsDeviceControllerInterface::COIN_PROCESSOR::ESCROW)
@@ -543,6 +546,16 @@ void DeviceControllerDiag::private_sendDiagEvent(DeviceController::State result)
 
     this->lastState = result;
 
+    /**
+     * Variant: send 'parameter' as JSON:
+     *
+        JSON::setPrettySerialize(false);
+        JSON::JsonObject json = JSON::objectBuilder()
+                  ->set("description", parameter)
+            ->create();
+        QString parameterJsonString = JSON::serialize(json);
+    */
+
     ATBMachineEvent *machineEvent = new ATBMachineEvent(
                 eventId,
                 "DC",
@@ -553,8 +566,6 @@ void DeviceControllerDiag::private_sendDiagEvent(DeviceController::State result)
                 ""         // second level info
                 );
 
-    //emit diagResponse(machineEvent);
-
     QCoreApplication::postEvent(eventReceiver, machineEvent);
 
 }