Library /sys$common/syshlp/basichelp.hlb Run time errors, INTERR  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Integer error (ERR=51)

  The program contains an integer whose absolute value  is  exceeds  the
  range  for  the  data  type.   Type HELP DATA_TYPES for information on
  valid ranges for BYTE, WORD, and LONG integers and use  only  integers
  in the valid range.