Library /sys$common/syshlp/dbg$help.hlb DEBUG, Messages, BITRANGE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 bit range out of limits

    Facility: DEBUG, VMS Debugger

    Explanation: The EVALUATE command specified a bit field that is
    too wide.

    User Action: The low limit of the bit field is 0 and the high
    limit is 31; the maximum range is 31:0.