dio_alarm_limit_class

	DIO_ALARM_LIMIT_CLASS(alarm_flags)

	This macro takes an analog alarm flag word and returns the
	alarm limit type. 

	alarm_flags	alarm flags word returned by dio_get_alarm(_c),
			dio_get_alrm_lst, or dio_get_db_alarm(_c)

	This macro returns values as follows:

	DIO_NOMTOL		nominal/tolerance limits
	DIO_NOMPER		nominal/percent tolerance limits
	DIO_MINMAX		minimum/maximum limits

	This macro is found in: diolib_h

	Related macros:

	DIO_ALARM_IS_DISPLAYED, DIO_ALARM_IS_LOGGED, DIO_ALARM_IS_EVENT,
	DIO_ALARM_IS_HIGH, DIO_ALARM_IS_LOW, DIO_ALARM_IS_DIGITAL,
	DIO_ALARM_LIMIT_SIZE, DIO_ALARM_IS_ABORT_INHIBIT, DIO_ALARM_IS_ABORT,
	DIO_ALARM_IS_BAD, DIO_ALARM_IS_ENABLED