OpenOPC.py 文件源码

def close(self, del_object=True):
      """Disconnect from the currently connected OPC server"""

      try:
         self.remove(self.groups())

      except pythoncom.com_error, err:
         error_msg = 'Disconnect: %s' % self._get_error_str(err)
         raise OPCError, error_msg

      except OPCError:
         pass

      finally:
         if self.trace: self.trace('Disconnect()')
         self._opc.Disconnect()

         # Remove this object from the open gateway service
         if self._open_serv and del_object:
            self._open_serv.release_client(self._open_self)