diff --git a/qgroundcontrol.pro b/qgroundcontrol.pro
index 7acfdb2873c9fa9ed279c8f67f5db340e5ac1520..8b9f3c4ab42479b19276cf4874d9c1c8254342ac 100644
--- a/qgroundcontrol.pro
+++ b/qgroundcontrol.pro
@@ -156,7 +156,6 @@ HEADERS += src/MG.h \
     src/ui/map/Waypoint2DIcon.h \
     src/ui/map/MAV2DIcon.h \
     src/ui/map/QGC2DIcon.h
-
 SOURCES += src/main.cc \
     src/Core.cc \
     src/uas/UASManager.cc \
@@ -227,8 +226,12 @@ win32 {
     LIBS += -LC:\OPAL-RT\RT-LAB7.2.4\Common\bin \
         -lOpalApi
     INCLUDEPATH += src/lib/opalrt
-    SOURCES += src/comm/OpalLink.cc
+    SOURCES += src/comm/OpalLink.cc \
+               src/comm/Parameter.cc \
+               src/comm/QGCParamID.cc
     HEADERS += src/comm/OpalLink.h \
-               src/comm/OpalRT.h
+        src/comm/OpalRT.h \
+        src/comm/Parameter.h \
+        src/comm/QGCParamID.h
     DEFINES += OPAL_RT
 }
diff --git a/src/comm/OpalLink.cc b/src/comm/OpalLink.cc
index a18f1f573903be3c5b643fdacba356287e825da7..1b39066008ba233c8c44979f443e4452fa005ba0 100644
--- a/src/comm/OpalLink.cc
+++ b/src/comm/OpalLink.cc
@@ -81,6 +81,7 @@ void OpalLink::writeBytes(const char *bytes, qint64 length)
         case MAVLINK_MSG_ID_PARAM_REQUEST_LIST:
             {
                 qDebug() << "OpalLink::writeBytes(): request params";
+                getParameterList();
                 mavlink_message_t param;
                 char paramName[] = "NAV_FILT_INIT";
                 mavlink_msg_param_value_pack(systemID, componentID, &param,
@@ -183,7 +184,7 @@ void OpalLink::setSignals(double *values)
     if (returnValue != EOK)
     {
         setLastErrorMsg();
-        displayErrorMsg();
+        displayLastErrorMsg();
     }
 }
 void OpalLink::getSignals()
@@ -255,7 +256,7 @@ void OpalLink::getSignals()
         else if (returnVal != EAGAIN)
         {
             getSignalsTimer->stop();
-            displayErrorMsg();
+            displayLastErrorMsg();
         }
     }
 
@@ -269,6 +270,77 @@ void OpalLink::getSignals()
 
 }
 
+void OpalLink::getParameterList()
+{
+    /* inputs */
+    unsigned short allocatedParams=0;
+    unsigned short allocatedPathLen=0;
+    unsigned short allocatedNameLen=0;
+    unsigned short allocatedVarLen=0;
+
+    /* outputs */
+    unsigned short numParams;
+    unsigned short *idParam=NULL;
+    unsigned short maxPathLen;
+    char **path=NULL;
+    unsigned short maxNameLen;
+    char **name=NULL;
+    unsigned short maxVarLen;
+    char **var=NULL;
+
+    int returnValue;
+
+    returnValue = OpalGetParameterList(allocatedParams, &numParams, idParam,
+                             allocatedPathLen, &maxPathLen, path,
+                             allocatedNameLen, &maxNameLen, name,
+                             allocatedVarLen, &maxVarLen, var);
+    if (returnValue!=E2BIG)
+    {
+        setLastErrorMsg();
+        displayLastErrorMsg();
+        return;
+    }
+
+    // allocate memory for parameter list
+
+    idParam = new unsigned short[numParams];
+    allocatedParams = numParams;
+
+    path = new char*[numParams];
+    for (int i=0; i<numParams; i++)
+        path[i]=new char[maxPathLen];
+    allocatedPathLen = maxPathLen;
+
+    name = new char*[numParams];
+    for (int i=0; i<numParams; i++)
+        name[i] = new char[maxNameLen];
+    allocatedNameLen = maxNameLen;
+
+    var = new char*[numParams];
+    for (int i=0; i<numParams; i++)
+        var[i] = new char[maxVarLen];
+    allocatedVarLen = maxVarLen;
+
+    returnValue = OpalGetParameterList(allocatedParams, &numParams, idParam,
+                             allocatedPathLen, &maxPathLen, path,
+                             allocatedNameLen, &maxNameLen, name,
+                             allocatedVarLen, &maxVarLen, var);
+
+    if (returnValue != EOK)
+    {
+        setLastErrorMsg();
+        displayLastErrorMsg();
+        return;
+    }
+
+    qDebug() << "Num params: " << numParams << endl;
+    qDebug() << "Name\tPath\tVar" << endl;
+    for (int i=0; i<numParams; i++)
+        qDebug() << qSetFieldWidth(20) << name[i] << qSetFieldWidth(5) << idParam[i]
+                << qSetFieldWidth(50) << path[i];
+
+}
+
 /*
  *
   Administrative
@@ -318,7 +390,7 @@ bool OpalLink::connect()
     else
     {
         connectState = false;
-        displayErrorMsg();
+        displayLastErrorMsg();
     }
 
     emit connected(connectState);
@@ -330,7 +402,7 @@ bool OpalLink::disconnect()
     return false;
 }
 
-void OpalLink::displayErrorMsg()
+void OpalLink::displayLastErrorMsg()
 {
     setLastErrorMsg();
     QMessageBox msgBox;
diff --git a/src/comm/OpalLink.h b/src/comm/OpalLink.h
index f281ccf7f61d4336c9e4d84721a0a1a70933023d..34768c7c2aa6935da901e5e78f3ded3e294e4cc1 100644
--- a/src/comm/OpalLink.h
+++ b/src/comm/OpalLink.h
@@ -32,6 +32,7 @@ This file is part of the QGROUNDCONTROL project
 
 #include <QMutex>
 #include <QDebug>
+#include <QTextStreamManipulator>
 #include <QMessageBox>
 #include <QTimer>
 #include <QQueue>
@@ -148,7 +149,7 @@ protected:
 //    QMutex getSignalsMutex;
     QString lastErrorMsg;
     void setLastErrorMsg();
-    void displayErrorMsg();
+    void displayLastErrorMsg();
 
     void setName(QString name);
 
@@ -165,6 +166,8 @@ protected:
     const int systemID;
     const int componentID;
 
+    void getParameterList();
+
 
 };
 
diff --git a/src/comm/OpalRT.h b/src/comm/OpalRT.h
index f26a727c190032af40cc78a409514ca63d2e6808..ea0005dbcedba91b3a02a05c70e323a6c0e7776c 100644
--- a/src/comm/OpalRT.h
+++ b/src/comm/OpalRT.h
@@ -43,6 +43,6 @@ namespace OpalRT
         B_W_0,
         B_W_1,
         B_W_2
-    };
+    };       
 }
 #endif // OPALRT_H
diff --git a/src/comm/Parameter.cc b/src/comm/Parameter.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d59c810973a9485f9ae1964fe06e03fd1932db0a
--- /dev/null
+++ b/src/comm/Parameter.cc
@@ -0,0 +1,6 @@
+#include "Parameter.h"
+using namespace OpalRT;
+
+Parameter::Parameter()
+{
+}
diff --git a/src/comm/Parameter.h b/src/comm/Parameter.h
new file mode 100644
index 0000000000000000000000000000000000000000..2fb9ba1e4d12a0c8710c4c67f949541b70a4a815
--- /dev/null
+++ b/src/comm/Parameter.h
@@ -0,0 +1,25 @@
+#ifndef PARAMETER_H
+#define PARAMETER_H
+
+#include <QString>
+#include "mavlink_types.h"
+#include "QGCParamID.h"
+
+namespace OpalRT
+{
+class Parameter
+{
+public:
+    Parameter();
+
+protected:
+    QString *simulinkName;
+    QString *simulinkPath;
+    unsigned short opalID;
+
+    QGCParamID *paramID;
+    uint8_t componentID;
+};
+}
+
+#endif // PARAMETER_H
diff --git a/src/comm/QGCParamID.cc b/src/comm/QGCParamID.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b497dfd1be0ccfad2ea17181039e8d14be59590f
--- /dev/null
+++ b/src/comm/QGCParamID.cc
@@ -0,0 +1,6 @@
+#include "QGCParamID.h"
+using namespace OpalRT;
+
+QGCParamID::QGCParamID()
+{
+}
diff --git a/src/comm/QGCParamID.h b/src/comm/QGCParamID.h
new file mode 100644
index 0000000000000000000000000000000000000000..454871875c7a115e780f017721fa0d1eb7a5e16e
--- /dev/null
+++ b/src/comm/QGCParamID.h
@@ -0,0 +1,15 @@
+#ifndef QGCPARAMID_H
+#define QGCPARAMID_H
+
+#include <QString>
+#include <QObject>
+namespace OpalRT
+{
+    class QGCParamID : public QString
+    {
+        Q_OBJECT
+    public:
+        QGCParamID();
+    };
+}
+#endif // QGCPARAMID_H