10      1     ACK   VERSION     8      0      C  YYYYMMDD        ACK VERSION 19980129 BETA
   20      1     ACK   HEADRxxx   71      0      C                  FIELDS TO CONTAIN THE HEADER OF THE ORGINAL MESSAGE RECEIVED
   30      1     ACK   CODERxxx    2      0      N                  ERROR MESSAGE CODE
   40      1     ACK   MNEMRxxx    8      0      C                  FIELD NAME OF FIELD CONTAINING THE ERROR
   50      1     ACK   DATARxxx   71      0      C                  DATA OF FIELD CONTAINING THE ERROR
   60      1     ACK   OCOMRxxx   71      0      C                  COMMENTS PERTAINING TO THE ERROR