dio_can_read_using_ftp_c

	status.i4.v = dio_can_read_using_ftp_c(device_indices.i4a.r,
					       properties.i2a.r,
					       can_ftps.i4a.r,
					       ftp_classes.i4a.r,
					       errors.i2a.r
					       [,num_devices.i4.v])

	This routine determines whether or not a device or a list of
	devices can be read via the Fast Time Plot protocol.

	device_indices	device index or array of device indices
	properties	list of property indices (If the first value is less
			than zero, all devices will be submitted with the
			same property.  The property value used will be the
			absolute value of this argument.)
			(constants are in dbprops)
	can_ftps	returned Fast Time Plot capability or array of returned
			capabilities
			(TRUE -> device can be read via FTP protocol,
			 FALSE -> device cannot be read via FTP protocol,
			 DIO_INVALID_DATA -> error occurred in reading data)
			(A value of NULL can be passed for this argument if
			 this information is not needed.)
	ftp_classes	returned FTP class code(s) (constants are in 'ftp')
			(A value of NULL can be passed for this argument if
			 this information is not needed.)
	errors		returned error status or array of errors
	[num_devices]	number of devices (default is 1)

	This function returns ACNET status values as follows:

	OK			success
	DIO_MEMFAIL		memory allocation failure
	negative value		ACNET format error indicating overall failure
	positive value		number of devices in error indicating partial
				success

	This function requires the following include files:

	cnsparam_h, diolib_h, dbprops_h, ftp_h, acnet_errors_h

	Related functions:

	dio_can_ftp_c, dio_get_ftp_class_c, dio_ftp_class_info_c,
	dio_build_ftp_list_c, dio_get_ftp_list_c, dio_get_raw_ftp_list_c,
	dio_get_status_ftp_list_c, dio_cancel_ftp_list_c,
	dio_can_read_using_snapshot_c, dio_can_snapshot_c,
	dio_get_snapshot_class_c, dio_can_trigger_snapshot_c,
	dio_snapshot_class_info_c, sr_sda_get_ftp_list_c,
	sr_sda_get_raw_ftp_list_c, error_in_list(_c)

	C/C++ usage:

	short	properties[NUM_DEVICES] = {PRREAD, PREAD};
	short	errors[NUM_DEVICES];
	int	status;
	static const int	device_indices[NUM_DEVICES] = {7085, 7046};
	int	can_ftps[NUM_DEVICES];
	int	num_devices = NUM_DEVICES;
	int	ftp_classes[NUM_DEVICES];

	status = dio_can_read_using_ftp_c(device_indices,properties,can_ftps,
					  ftp_classes,errors,num_devices);