Specifications

Engineering Standard –NSW
Signalling SMS 02
Cerberus Level Crossing Monitor Equipment
March 2005 Version 1.2 © Australian Rail Track Corporation Page 98 of 118
This document is uncontrolled when printed.
8. Log Interpretation
8.1 General
Log entries are displayed in the following format:
DOW dd-mm-yy hh:mm:ss.f TYPE NUMBER NAME
STATE
where
DOW is the day of the week. This is formatted as Sun for Sunday,
Mon for Monday, Tue for Tuesday, Wed for Wednesday, Thu for
Thursday, Fri for Friday, Sat for Saturday.
dd is the day of the month that the event occurred.
mmis the month in which the event occurred. This is formatted as 01
is January, to 12 is December.
yy is the year in which the event occurred. This is formatted such
that numbers greater than 91 refer to the year 1992 etc., and years
less than 92 refer to the years 2000 etc.
hh is the hour of the day that the event occurred in 24 hour
format. mmis the minutes at which the event occurred. ss is the
seconds at which the event occurred.
f is fractions of a second at which the event occurred with a 0.25
second resolution.
TYPE defines the type of log entry.
NUMBER This is a number which starts at one for each type. It
relate the log entry to external input, output, the internal logic that
controls the event.
NAME This is the name of the external input, output, or internal
logic for which the event occurred.
STATE This is the state to which the external input, output, or
internal logic for which the event occurred has changed too.
Note that the Level Crossing monitor scans all of its inputs once
every 0.25 seconds. Therefore any log entries that have a time
stamp that matches to the fraction of a second occurred in the same
scan. This means that the order log entries for which the time
stamps match only identifies the order in which they were scanned
and not the order in which they occurred.
The date and hours for each log event are stored as separate
entries in the log. This may cause the oldest log entries to lose the
date and