SUBROUTINE MINIMG(LUNIT,MINI)

C$$$  SUBPROGRAM DOCUMENTATION BLOCK
C
C SUBPROGRAM:    MINIMG
C   PRGMMR: WOOLLEN          ORG: NP20       DATE: 1994-01-06
C
C ABSTRACT: THIS SUBROUTINE PACKS THE VALUE OF MINI INTO SECTION 1 OF
C   THE BUFR MESSAGE THAT IS CURRENTLY OPEN WITHIN MEMORY FOR LUNIT,
C   SO THAT THIS VALUE THEN BECOMES THE MINUTES COMPONENT OF THE
C   SECTION 1 DATE-TIME FOR THE MESSAGE.  THIS SUBROUTINE SHOULD ONLY
C   BE CALLED WHEN LOGICAL UNIT LUNIT HAS BEEN OPENED FOR OUTPUT
C   OPERATIONS.
C
C PROGRAM HISTORY LOG:
C 1994-01-06  J. WOOLLEN -- ORIGINAL AUTHOR (ENTRY POINT IN MSGINI)
C 1998-07-08  J. WOOLLEN -- REPLACED CALL TO CRAY LIBRARY ROUTINE
C                           "ABORT" WITH CALL TO NEW INTERNAL BUFRLIB
C                           ROUTINE "BORT" (IN PARENT ROUTINE MSGINI)
C 1999-11-18  J. WOOLLEN -- THE NUMBER OF BUFR FILES WHICH CAN BE
C                           OPENED AT ONE TIME INCREASED FROM 10 TO 32
C                           (NECESSARY IN ORDER TO PROCESS MULTIPLE
C                           BUFR FILES UNDER THE MPI) (IN PARENT
C                           ROUTINE MSGINI)
C 2000-09-19  J. WOOLLEN -- MAXIMUM MESSAGE LENGTH INCREASED FROM
C                           10,000 TO 20,000 BYTES (IN PARENT ROUTINE
C                           MSGINI)
C 2002-05-14  J. WOOLLEN -- CHANGED FROM AN ENTRY POINT TO INCREASE
C                           PORTABILITY TO OTHER PLATFORMS
C 2003-11-04  J. ATOR    -- ADDED DOCUMENTATION
C 2003-11-04  S. BENDER  -- ADDED REMARKS/BUFRLIB ROUTINE
C                           INTERDEPENDENCIES
C 2003-11-04  D. KEYSER  -- UNIFIED/PORTABLE FOR WRF; ADDED HISTORY
C                           DOCUMENTATION; OUTPUTS MORE COMPLETE
C                           DIAGNOSTIC INFO WHEN ROUTINE TERMINATES
C                           ABNORMALLY
C 2004-08-09  J. ATOR    -- MAXIMUM MESSAGE LENGTH INCREASED FROM
C                           20,000 TO 50,000 BYTES
C 2005-11-29  J. ATOR    -- USE PKBS1
C
C USAGE:    CALL MINIMG (LUNIT, MINI)
C   INPUT ARGUMENT LIST:
C     LUNIT    - INTEGER: FORTRAN LOGICAL UNIT NUMBER FOR BUFR FILE
C     MINI     - INTEGER: MINUTES VALUE TO BE PACKED
C
C REMARKS:
C    THIS ROUTINE CALLS:        BORT     PKBS1    STATUS
C    THIS ROUTINE IS CALLED BY: None
C                               Normally called only by application
C                               programs.
C
C ATTRIBUTES:
C   LANGUAGE: FORTRAN 77
C   MACHINE:  PORTABLE TO ALL PLATFORMS
C$$$

      INCLUDE 'bufrlib.prm'

      COMMON /BITBUF/ MAXBYT,IBIT,IBAY(MXMSGLD4),MBYT(NFILES),
     .                MBAY(MXMSGLD4,NFILES)

      CALL STATUS(LUNIT,LUN,IL,IM)
      IF(IL.EQ.0) GOTO 900
      IF(IL.LT.0) GOTO 901
      IF(IM.EQ.0) GOTO 902

      CALL PKBS1(MINI,MBAY(1,LUN),'MINU')

C  EXITS
C  -----

      RETURN
900   CALL BORT('BUFRLIB: MINIMG - OUTPUT BUFR FILE IS CLOSED, IT '//
     . 'MUST BE OPEN FOR OUTPUT')
901   CALL BORT('BUFRLIB: MINIMG - OUTPUT BUFR FILE IS OPEN FOR '//
     . 'INPUT, IT MUST BE OPEN FOR OUTPUT')
902   CALL BORT('BUFRLIB: MINIMG - A MESSAGE MUST BE OPEN IN OUTPUT '//
     . 'BUFR FILE, NONE ARE')
      END