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+! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+!   Copyright by The HDF Group.                                               *
+!   Copyright by the Board of Trustees of the University of Illinois.         *
+!   All rights reserved.                                                      *
+!                                                                             *
+!   This file is part of HDF5.  The full HDF5 copyright notice, including     *
+!   terms governing use, modification, and redistribution, is contained in    *
+!   the files COPYING and Copyright.html.  COPYING can be found at the root   *
+!   of the source code distribution tree; Copyright.html can be found at the  *
+!   root level of an installed copy of the electronic HDF5 document set and   *
+!   is linked from the top-level documents page.  It can also be found at     *
+!   http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+!   access to either file, you may request a copy from help@hdfgroup.org.     *
+! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+!
+!
+! The following example shows how to write and read to/from an existing dataset.
+! It opens the file created in the previous example, obtains the dataset
+! identifier, writes the data to the dataset in the file,
+! then reads the dataset  to memory.
+!
+! This example is used in the HDF5 Tutorial.
+
+PROGRAM H5_RDWT
+
+  USE HDF5 ! This module contains all necessary modules
+
+  IMPLICIT NONE
+
+  CHARACTER(LEN=8), PARAMETER :: filename = "dsetf.h5" ! File name
+  CHARACTER(LEN=4), PARAMETER :: dsetname = "dset"     ! Dataset name
+
+  INTEGER(HID_T) :: file_id       ! File identifier
+  INTEGER(HID_T) :: dset_id       ! Dataset identifier
+
+  INTEGER     ::   error ! Error flag
+  INTEGER     ::  i, j
+
+  INTEGER, DIMENSION(4,6) :: dset_data, data_out ! Data buffers
+  INTEGER(HSIZE_T), DIMENSION(2) :: data_dims
+
+  !
+  ! Initialize the dset_data array.
+  !
+  DO i = 1, 4
+     DO j = 1, 6
+        dset_data(i,j) = (i-1)*6 + j
+     END DO
+  END DO
+
+  !
+  ! Initialize FORTRAN interface.
+  !
+  CALL h5open_f(error)
+
+  !
+  ! Open an existing file.
+  !
+  CALL h5fopen_f (filename, H5F_ACC_RDWR_F, file_id, error)
+
+  !
+  ! Open an existing dataset.
+  !
+  CALL h5dopen_f(file_id, dsetname, dset_id, error)
+
+  !
+  ! Write the dataset.
+  !
+  data_dims(1) = 4
+  data_dims(2) = 6
+  CALL h5dwrite_f(dset_id, H5T_NATIVE_INTEGER, dset_data, data_dims, error)
+
+  !
+  ! Read the dataset.
+  !
+  CALL h5dread_f(dset_id, H5T_NATIVE_INTEGER, data_out, data_dims, error)
+
+  !
+  ! Close the dataset.
+  !
+  CALL h5dclose_f(dset_id, error)
+
+  !
+  ! Close the file.
+  !
+  CALL h5fclose_f(file_id, error)
+
+  !
+  ! Close FORTRAN interface.
+  !
+  CALL h5close_f(error)
+
+END PROGRAM H5_RDWT
+
+
+