status.i4.v = dio_scaling_length_list_c(device_indices.i4a.r,
						properties.i2a.r, lengths.i2a.r,
						errors.i2a.r [,num_devices.i4.v]

	This routine returns the default input data length for scaling
	device_indices	device index or array of device indices
	properties	property index or array of property indices
			(PRREAD -> reading property,
			 PRSET -> setting property,
			 PRBSTS -> basic status property,
			 PRBCTL -> basic control property)
			(If the first value is less than zero, all devices
			 use a property index which is equal to the absolute
			 value of this argument.)
	lengths		returned array of scaling services input data
			lengths in bytes (1, 2, or 4)
	errors		returned ACNET status value or array of returned
			status values (A status of DBM_NOREC indicates that
			the requested PDB does not exist.)
	[num_devices]	number of devices in list
	[options]	retrieval options
			(DIO_OPT_NONE -> no options selected (default),
			 DIO_OPT_ALLOW_OBSOLETE -> return data for obsolete

	This function returns status values as follows:

	OK			success
	DIO_BADARG		invalid property index or number of
				devices passed
	DIO_MEMFAIL		memory allocation failure
	negative value		other ACNET format error
	positive value		number of devices in error

	This function requires the following include files:

	dbprops_h, diolib_h, acnet_errors_h

	Related functions:

	dio_scaling_len(_c), dio_status_scaling_length_c,
	dio_control_scaling_length_c, dio_is_display_dec(_c),
	dio_is_display_short(_c), dio_scaling, dio_scaling_transforms_c,
	dio_is_controlled_set_list, dio_data_type_info_c, error_in_list(_c)

	C/C++ usage:

	short	errors[NUM_DEVICES];
	short	properties = -PRSET;
	short	lengths[NUM_DEVICES];
	int	status;
	static const int	device_indices[NUM_DEVICES] = {14430, 14431};
	int	num_devices = NUM_DEVICES;
	unsigned int	options = DIO_OPT_NONE;

	status = dio_scaling_length_list_c(device_indices,properties,