dio_change_ftd_lst(_c)

	status.i4.v = dio_change_ftd_lst(list_id.i4.r, ftd.i2.r, errors.i2a.r)

	status.i4.v = dio_change_ftd_lst_c(list_id.i4.v, ftd.i2.v, errors.i2a.r)

	This routine changes the Frequency Time Descriptor (FTD) for a
	list of devices previously built via a call to dio_bld_get(_c)
	or dio_bld_get_raw(_c).

	list_id		list ID returned from a previous call to
			'dio_bld_get(_raw)(_c)'
	ftd		Frequency Time Descriptor
			(FTD_ONESHOT -> one shot,
			 FTD_DEFAULT -> use database default FTD,
			 FTD_1HZ -> 1 Hz request (Note: This value can be
				    multiplied by an integer constant to
				    retrieve data every "constant" seconds.),
			 FTD_EVENT_MASK OR'ed with TCLK event value -> read
			 on TCLK event (event constants are in 'tclk_events')
			 (can use the macro BUILD_EVENT_FTD(event) or
			  BUILD_EVENT_PLUS_DELAY_FTD(event,delay) in 'macro'))
	errors		array of returned ACNET status values (one for each
			device in the list)

	This function returns status values as follows:

	OK			success
	DIO_NOLIST		requested list does not exist
	DIO_UNAVAIL		not valid in this context (MIO in use)
	negative value		ACNET format error indicating overall failure
	positive value		number of first device in error

	This function requires the following include files:

	diolib_h, acnet_errors_h, tclk_events_h, macro_h

	Related functions:

	dio_bld_get(_c), dio_bld_get_raw(_c), dio_change_ftd,
	dio_get_lst_raw(_c), dio_get_directed_list_raw_c, dio_get_lst,
	dio_get_directed_list, dio_extract_read_list_status_c,
	error_in_list(_c)

	C/C++ usage:

	short		errors[NUM_DEVICES];
	short		ftd = FTD_1HZ;
	int		status;
	int		list_id;

	status = dio_change_ftd_lst_c(list_id,ftd,errors);