Forced flush buffer after a write.

src/FlexHV.py

@@ -193,6 +193,8 @@ class FlexHV(PyTango.Device_4Impl):
             # self.debug_stream("argout: " + argout)
             if self.get_state() == PyTango.DevState.FAULT:
                 self.set_state(PyTango.DevState.ON)
+            time.sleep(0.1)
+            self.socket.Read()
             return 1
         except Exception, e:
             self.error_stream("Socket connection raised exception.")