Index: simulator/Simulator.ui
===================================================================
diff -u -rb4e6b92304a715cba0c33fe101922ceee4174465 -r7e3d9ea9dd57df70239038bab352a6a049696dbc
--- simulator/Simulator.ui	(.../Simulator.ui)	(revision b4e6b92304a715cba0c33fe101922ceee4174465)
+++ simulator/Simulator.ui	(.../Simulator.ui)	(revision 7e3d9ea9dd57df70239038bab352a6a049696dbc)
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>831</width>
-    <height>928</height>
+    <height>929</height>
    </rect>
   </property>
   <property name="font">
@@ -990,6 +990,9 @@
            <property name="maximum">
             <number>8000</number>
            </property>
+           <property name="value">
+            <number>8000</number>
+           </property>
           </widget>
          </item>
          <item row="1" column="0">
@@ -1178,6 +1181,9 @@
            <property name="maximum">
             <number>480</number>
            </property>
+           <property name="value">
+            <number>480</number>
+           </property>
           </widget>
          </item>
          <item row="2" column="0">
@@ -1250,12 +1256,32 @@
           </widget>
          </item>
          <item row="3" column="1">
-          <widget class="QSlider" name="horizontalSlider">
+          <widget class="QSlider" name="sldDurationValue">
+           <property name="maximum">
+            <number>480</number>
+           </property>
            <property name="orientation">
             <enum>Qt::Horizontal</enum>
            </property>
           </widget>
          </item>
+         <item row="3" column="0">
+          <widget class="QLabel" name="label_14">
+           <property name="text">
+            <string>Value</string>
+           </property>
+          </widget>
+         </item>
+         <item row="3" column="2">
+          <widget class="QLabel" name="label_18">
+           <property name="text">
+            <string>0</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
         </layout>
        </item>
        <item row="3" column="0" colspan="5">
@@ -1299,6 +1325,9 @@
            <property name="text">
             <string/>
            </property>
+           <property name="checked">
+            <bool>true</bool>
+           </property>
           </widget>
          </item>
         </layout>
@@ -1327,6 +1356,9 @@
            <property name="singleStep">
             <number>50</number>
            </property>
+           <property name="value">
+            <number>600</number>
+           </property>
           </widget>
          </item>
          <item row="2" column="0">
@@ -2976,5 +3008,21 @@
     </hint>
    </hints>
   </connection>
+  <connection>
+   <sender>sldDurationValue</sender>
+   <signal>valueChanged(int)</signal>
+   <receiver>label_18</receiver>
+   <slot>setNum(int)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>144</x>
+     <y>605</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>252</x>
+     <y>602</y>
+    </hint>
+   </hints>
+  </connection>
  </connections>
 </ui>
Index: simulator/run.py
===================================================================
diff -u -refb0dcc34f39f35d41f43cca9667db17fd97c844 -r7e3d9ea9dd57df70239038bab352a6a049696dbc
--- simulator/run.py	(.../run.py)	(revision efb0dcc34f39f35d41f43cca9667db17fd97c844)
+++ simulator/run.py	(.../run.py)	(revision 7e3d9ea9dd57df70239038bab352a6a049696dbc)
@@ -182,6 +182,7 @@
     sldUfVolume: QtWidgets.QSlider
     sldArterialValue: QtWidgets.QSlider
     sldVenousValue: QtWidgets.QSlider
+    sldDurationValue: QtWidgets.QSlider
     # tables
     tblSalineSubMode: QtWidgets.QTableWidget
     tblSalineUFStates: QtWidgets.QTableWidget
@@ -202,6 +203,7 @@
         """
         self.spnDurationMin = self.find_spinbox('spnDurationMin')
         self.spnDurationMax = self.find_spinbox('spnDurationMax')
+        self.sldDurationValue = self.find_slider('sldDurationValue')
         self.spnUFVolumeMin = self.find_spinbox('spnUFVolumeMin')
         self.spnUFVolumeMax = self.find_spinbox('spnUFVolumeMax')
         self.spnDialysateMin = self.find_spinbox('spnDialysateMin')
@@ -211,6 +213,8 @@
         self.timer.start(1000)
         self.timer.timeout.connect(self.do_ranges_data)
 
+        self.sldDurationValue.valueChanged.connect(self.do_duration_data)
+
     def setup_uf_adjustment(self):
         """
         sets up the treatment Ultrafiltration adjustment GUI section
@@ -346,6 +350,14 @@
         self.spnVenousLimitHigh.setValue(Ranges.VENOUS_PRESSURE_HIGH_DEF)
 
     @Slot()
+    def do_duration_data(self, value):
+        """
+        sends the duration message
+        :return: none
+        """
+        denaliMessages.setTreatmentTime(self.spnDurationMax.value() * 60, value)
+
+    @Slot()
     def do_sb_accept(self):
         """
         the slot for accept saline bolus button
@@ -471,9 +483,14 @@
         :return: none
         """
         if self.chkRangesBroadcast.isChecked():
+            duration_min = self.spnDurationMin.value()
+            duration_max = self.spnDurationMax.value()
+            self.sldDurationValue.setMinimum(duration_min * 60 )
+            self.sldDurationValue.setMaximum(duration_max * 60 )
+
             denaliMessages.setTreatmentParamRanges(
-                self.spnDurationMin.value(),
-                self.spnDurationMax.value(),
+                duration_min,
+                duration_max,
                 self.spnUFVolumeMin.value(),
                 self.spnUFVolumeMax.value(),
                 self.spnDialysateMin.value(),
Index: tst_Internals/test.py
===================================================================
diff -u -r08e394d6afe01356f9ab4da613180112ff86f32d -r7e3d9ea9dd57df70239038bab352a6a049696dbc
--- tst_Internals/test.py	(.../test.py)	(revision 08e394d6afe01356f9ab4da613180112ff86f32d)
+++ tst_Internals/test.py	(.../test.py)	(revision 7e3d9ea9dd57df70239038bab352a6a049696dbc)
@@ -15,16 +15,13 @@
 
 from dialin.squish import utils
 from dialin.squish import unittests
-from dialin.utils.base import is_interface_present, is_interface_up
 
 
 def main():
     utils.tstStart(__file__)
     
     unittests.test_python_version()
     unittests.test_crc8()
-    test.compare(is_interface_present("can0"), True, "CAN interface is present")
-    test.compare(is_interface_up("can0"), True, "CAN interface is up")
     unittests.test_can0()
 
     utils.tstDone()