diff --git a/include/com.h b/include/com.h
index 0cee78d..379d739 100644
--- a/include/com.h
+++ b/include/com.h
@@ -7,6 +7,7 @@
 //#include <QString>
 #include <QTimer>
 #include <QSerialPort>
+#include <QVector>
 #include "tslib.h"
 #include "controlBus.h"
 #include "interfaces.h"
@@ -32,6 +33,10 @@ class T_com : public QObject        //,  public QPlainTextEdit
 //    QSerialPort *CatSerial = nullptr;
     QSerialPort *CatSerial;
 
+    QVector<uint16_t> readCmds;     // list of active commands sent to DC
+
+
+
     //char oeffneSerialPort();
     char open_Serial_Port();
     void closeSerialPort();
@@ -61,6 +66,9 @@ public:
     bool readFromSerial(QByteArray &data, uint16_t &sendLength);
         // retval: true: data available
 
+    QVector<uint16_t> &getReadCmds() { return readCmds; }
+    QVector<uint16_t> const &getReadCmds() const { return readCmds; }
+
 /*
     uint8_t getAllPortPins(void);
         // rs232pins: all signals bitwise coded in one byte: