Correct the data type of the OPC_port property

Femto-DS/Femto.py

@@ -41,7 +41,7 @@ class Femto(Device):
         OPC_Server_Name
             - Type:'DevString'
         OPC_Server_Port
-            - Type:'DevString'
+            - Type:'DevULong'
         OPC_time_out
             - Type:'DevULong'
     """
@@ -58,8 +58,8 @@ class Femto(Device):
     )
 
     OPC_Server_Port = device_property(
-        dtype='DevString',
-        default_value="55555"
+        dtype='DevULong',
+        default_value=55555
     )
 
     OPC_time_out = device_property(

Femto-DS/Femto.xmi

@@ -11,7 +11,7 @@
       <DefaultPropValue>okeanos</DefaultPropValue>
     </deviceProperties>
     <deviceProperties name="OPC_Server_Port" description="">
-      <type xsi:type="pogoDsl:StringType"/>
+      <type xsi:type="pogoDsl:UIntType"/>
       <status abstract="false" inherited="false" concrete="true" concreteHere="true"/>
       <DefaultPropValue>55555</DefaultPropValue>
     </deviceProperties>