Index: sources/canbus/frameinterface.cpp
===================================================================
diff -u -rd3f98384e9400f8acb84c88dee75f1c480986998 -r9392f5be540bb428dc64757ef2e50a4d4e5090a8
--- sources/canbus/frameinterface.cpp	(.../frameinterface.cpp)	(revision d3f98384e9400f8acb84c88dee75f1c480986998)
+++ sources/canbus/frameinterface.cpp	(.../frameinterface.cpp)	(revision 9392f5be540bb428dc64757ef2e50a4d4e5090a8)
@@ -155,7 +155,7 @@
 
     if (!ok){
         qDebug() << "ERROR :" << "Unexpected Channel";
-        qDebug() << Format::toHexString(mFrameId, false, 3) + " -- " + vFrame.payload().toHex(' ');
+        qDebug() << Format::toHexString(mFrameId, false, eLenChannelDigit) + " -- " + vFrame.payload().toHex(' ');
         return;
     }
 
Index: sources/canbus/messagebuilder.cpp
===================================================================
diff -u -r561055268da68e24fe91a1148b76bf1785dae14d -r9392f5be540bb428dc64757ef2e50a4d4e5090a8
--- sources/canbus/messagebuilder.cpp	(.../messagebuilder.cpp)	(revision 561055268da68e24fe91a1148b76bf1785dae14d)
+++ sources/canbus/messagebuilder.cpp	(.../messagebuilder.cpp)	(revision 9392f5be540bb428dc64757ef2e50a4d4e5090a8)
@@ -89,7 +89,7 @@
         vPayload += (mAction >> 8) & 0xFF;//high byte
         vPayload +=  mAction       & 0xFF;// low byte
     } else {
-        QString mHexString = Format::toHexString(vAction, false, 3);
+        QString mHexString = Format::toHexString(vAction, false, eLenMessageIDDigits);
         qDebug() << "ERROR :" << tr("Incorrect Action ID '%1'").arg(mHexString);
         return false;
     }
@@ -117,7 +117,7 @@
         }
     }
     if (vData.length() < len) {
-        QString mHexString = Format::toHexString(vAction, false, 3);
+        QString mHexString = Format::toHexString(vAction, false, eLenMessageIDDigits);
         qDebug() << "ERROR :" << tr("Not enough data has been provided for the Message ID '%1'").arg(mHexString);
         qDebug() << vData.toHex('.');
         return false;
@@ -232,8 +232,8 @@
         quint8 mBeenRead = 0;
         if ( ! checkCRC(crcData, mExpected, mBeenRead ) ) {  // CRC is always next byte after Data
             qDebug() << "ERROR :" << tr("CRC error, expected %1 but got %2")
-                        .arg(Format::toHexString(mExpected, true, 2))
-                        .arg(Format::toHexString(mBeenRead, true, 2));
+                        .arg(Format::toHexString(mExpected, true, eLenCRCDigits))
+                        .arg(Format::toHexString(mBeenRead, true, eLenCRCDigits));
             return false;
         }
     }
@@ -385,10 +385,10 @@
                 byteList[i] = QByteArray("\033[36m") + byteList[i].constData() + QByteArray("\033[0m");
             }
         }
-        view = Format::toHexString(vCan_Id, false, 3).toLatin1() + "   " + byteList.join('.');
+        view = Format::toHexString(vCan_Id, false, eLenChannelDigits).toLatin1() + "   " + byteList.join('.');
         fprintf(stderr, "%s\n", view.constData());
     } else {
-        view = Format::toHexString(vCan_Id, false, 3).toLatin1() + "   " + vPayload.toHex('.');
+        view = Format::toHexString(vCan_Id, false, eLenChannelDigits).toLatin1() + "   " + vPayload.toHex('.');
         fprintf(stderr, "%s\n", view.constData());
     }
 }
Index: sources/canbus/messageglobals.h
===================================================================
diff -u -rc5389647e2259e67f8e6d923f3481d7d3f4eab68 -r9392f5be540bb428dc64757ef2e50a4d4e5090a8
--- sources/canbus/messageglobals.h	(.../messageglobals.h)	(revision c5389647e2259e67f8e6d923f3481d7d3f4eab68)
+++ sources/canbus/messageglobals.h	(.../messageglobals.h)	(revision 9392f5be540bb428dc64757ef2e50a4d4e5090a8)
@@ -56,6 +56,11 @@
     eLenSyncByte        =   1, ///< The length of Sync byte at the beginning of each header frame
     eLenActionId        =   2, ///< The length of MessageID bytes (2) at the beginning of each header frame after sync
     eLenLength          =   1, ///< The length of data length value byte at the beginning of each header frame after MessageID
+
+    eLenCRCDigits       =   2,
+    eLenChannelDigits   =   3,
+    eLenMessageIDDigits =   4,
+
 };
 
 /*!
Index: sources/canbus/messageinterpreter.cpp
===================================================================
diff -u -r561055268da68e24fe91a1148b76bf1785dae14d -r9392f5be540bb428dc64757ef2e50a4d4e5090a8
--- sources/canbus/messageinterpreter.cpp	(.../messageinterpreter.cpp)	(revision 561055268da68e24fe91a1148b76bf1785dae14d)
+++ sources/canbus/messageinterpreter.cpp	(.../messageinterpreter.cpp)	(revision 9392f5be540bb428dc64757ef2e50a4d4e5090a8)
@@ -306,7 +306,7 @@
  */
 void MessageInterpreter::printUnhandled(const Message &vMessage)
 {
-    QString mActionIdHexString = Format::toHexString(vMessage.actionId, false, 3);
+    QString mActionIdHexString = Format::toHexString(vMessage.actionId, false, eLenMessageIDDigits);
     qDebug() << "WARNG :" << tr("Unhandled Message ID (HD)");
     qDebug().noquote() << QString(mActionIdHexString + "   " + vMessage.data.toHex('.')).toLatin1();
     qDebug() << "";