def import_syscal_bin(self, filename, **kwargs):
        """Syscal import

        timestep: int or :class:`datetime.datetime`
            if provided use this value to set the 'timestep' column of the
            produced dataframe. Default: 0

        """
        timestep = kwargs.get('timestep', None)
        if 'timestep' in kwargs:
            del (kwargs['timestep'])
        self.logger.info('IRIS Syscal Pro bin import')
        with LogDataChanges(self, filter_action='import'):
            data, electrodes, topography = reda_syscal.import_bin(
                filename, **kwargs
            )
            if timestep is not None:
                data['timestep'] = timestep
            self._add_to_container(data)
        if kwargs.get('verbose', False):
            print('Summary:')
            self._describe_data(data)
Syscal import

        timestep: int or :class:`datetime.datetime`
            if provided use this value to set the 'timestep' column of the
            produced dataframe. Default: 0