status.i4.v = dio_get_ftp_list_c(list_id.i4.v, max_points.i4.v,
					 num_points.i4a.r, points.sa.r,

	This routine retrieves fast time plot data for a list of devices
	that were requested by an earlier call to dio_build_ftp_list_c.
	This routine should be called frequently since data will be
	streaming in from the front end(s) constantly at about a 2 Hz rate.
	A returned overall status of DIO_PEND indicates that no new data
	for this list has arrived since the previous call to this routine.

	list_id		list ID returned from a previous call to
	max_points	maximum number of points to return per device
	num_points	returned array of number of valid points per device
	points		returned data points  (Allow "max_points" per device.)
			(array of structures of type DIO_FTP_POINT)
	errors		array of ACNET status values

	This function returns status values as follows:

	OK			success
	DIO_MEMFAIL		memory allocation failure
	DIO_NOLIST		requested list does not exist
	DIO_BADARG		invalid number of points requested
	DIO_PEND		no new data is available
	DIO_TIMEOUT		no data has returned from a front end
				in the timeout period, list cancelled
	negative value		ACNET format error indicating overall failure
	positive value		number of devices in error indicating partial

	This function requires the following include files:

	cnsparam_h, cns_data_structs_h, diolib_h, acnet_errors_h

	Related functions:

	dio_build_ftp_list_c, dio_get_raw_ftp_list_c, dio_get_status_ftp_list_c,
	dio_cancel_ftp_list_c, dio_can_read_using_ftp_c, dio_can_ftp_c,
	dio_ftp_class_info_c, dio_get_snapshot_list_c,
	dio_build_snapshot_list_c, dio_cancel_snapshot_list_c,
	dio_rearm_snapshot_list_c, dio_can_read_using_snapshot_c,
	dio_can_snapshot_c, dio_can_trigger_snapshot_c, sr_sda_get_ftp_list_c,
	sr_sda_get_raw_ftp_list_c, error_in_list(_c)

	C/C++ usage:

	short	errors[NUM_DEVICES];
	int	status;
	int	list_id;
	int	max_points = MAX_POINTS;
	int	num_points[NUM_DEVICES];

	status = dio_get_ftp_list_c(list_id,max_points,num_points,
				    (DIO_FTP_POINT *) points,errors);