_diffrn_data_frame.array_id ARRAYID
    _diffrn_data_frame.array_section_id SECTIONID
    _diffrn_data_frame.binary_id BINID
    _diffrn_data_frame.center_fast CENF
    _diffrn_data_frame.center_slow CENS
    _diffrn_data_frame.center_units UNITS
    _diffrn_data_frame.detector_element_id ELEMENTID
    _diffrn_data_frame.id FRAMEID
    _diffrn_data_frame.details DETAILS

    -->

    /entry:NXentry
      /instrument:NXinstrument
       /DETECTORNAME:NXdetector_group
       /DETECTORELEMENTNAME:NXdetector
          /CBF_diffrn_data_frame__section_id=[SECTIONIDARRAY]
          /CBF_diffrn_data_frame__binary_id=[BINARYIDARRAY]
          /CBF_diffrn_data_frame__center_fast_slow=[CENTERARRAY]
            @units="UNITS"
          /CBF_diffrn_data_frame__details=["DETAILSARRAY"]

    inserts either ARRAYID (if SECTIONID is not specified or SECTIONID
    into the element of SECTIONIDARRY for this frame and for this detector
    element (see below);

    inserts BINID
    into the element of BINARYIDARRAY for this frame and for this detector
    element (see below);

    inserts CENF
    into the element of CENTERARRAY for this frame, for this detector element
    and for the fast centre (see below);

    inserts CENS
    into the element of CENTERARRAY for this frame, for this detector element
    and for the slow centre (see below);

    only one CENTERARRY unit is provided.  If there is variation, the values in
    CENTERARRAY should be rescaled to uniform units.

    _diffrn_data_frame.detector_element_id ELEMENTID -->
    ELEMENTID used to index into the arrays of this category by the ordinal of
    the matching ELEMENTID in DIFFRN_DETECTOR_ELEMENT__id for the fast index;

    FRAMEID used to index into the arrays of this category by the ordinal of
    the matching ELEMENTID in DIFFRN_DETECTOR_ELEMENT__id for the slow index
    by matching FRAMEID against _diffrn_scan_frame.frame_id and using
    _diffrn_scan_frame.frame_number from the same row.

    inserts DETAILS
    into the element of DETAILSARRAY for this frame and for this detector
    element (see below);

    The arrays created in the mapping have a slow index of the number of frames
    and a fast index of the number of detector elements.  There is a middle
    index for CENTERARRAY in the order fast and then slow.