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