Change access path to variables in FEMTO-DS

Femto-DS/Femto.py

@@ -108,8 +108,8 @@ class Femto(Device):
 
             # Now getting a variable node using its browse path
             self.opc_obj = self.client.get_root_node().get_child(["0:Objects",
-                                                "{}:StationMetrics".format(idx),
-                                                "{}:RCU".format(idx)])
+                "{}:FEMTO".format(idx),
+                "{}:RCU_error_spectra".format(idx)])
             print("Connected to the OPC-UA server %s" % (self.OPC_Server_Name))
         except Exception as e:
             print("Failed to connect to the OPC-UA server %s.  Traceback: %s" % (self.OPC_Server_Name, traceback.format_exc()))