Specifications

Engineering Standard –NSW
Signalling SMS 02
Cerberus Level Crossing Monitor Equipment
March 2005 Version 1.2 © Australian Rail Track Corporation Page 107 of 118
This document is uncontrolled when printed.
BATTERY 0 61
LAMP
0
62
LOGIC
0
63
TIMER_TEST_OP 0 64
problem with the battery
either one lamp out or 2 or more lamps out
error in sequencing or direction sticks or timed out
TIMER TEST Relay to test timer and do battery test
;******************************************************************* ;
START SPECIAL INTERMEDIATE TERMS WARNING ! WARNING ! WARNING ! ;
These intermediate terms are used by the system software. ; SPECIAL
INTERMEDIATE TERMS MUST NOT BE ALTERED.
*SYSTEM_FAULT ; Set/Cleared by system - a fault with the system
*ONE_LAMP_OUT ; Set/Cleared by system - one lamp out detected
*LAMP_FAULT ; Set/Cleared by system - > 1 lamps out or extra lamps
*BATT_LOW ; Set/Cleared by system - Battery voltage below fail point
*REMOTE_RESET ; Set/Cleared by system - Remote reset of fail and warning
*TEST_CURRENT_HIGH ; Set/Cleared by system - Battery test HIGH current state
*TEST_CURRENT_LOW ; Set/Cleared by system - Battery test LOW current state
*SECURITY ; Used by system - Location Alarm/door switch
*TRAIN_FAULT ; Used by system - Dragging equipment etc
*LAMPS_ON ; Used by system to detect lamps on
*MAINT_DISABLE ; Used by system to detect presence of maintenance staff
*USER_STATUS1 ; Used by system - user status bit 1 for reporting
*USER_STATUS2 ; Used by system - user status bit 2 for reporting ;
END SPECIAL INTERMEDIATE TERMS
;*******************************************************************
;******************************************************************* ;
START NORMAL INTERMEDIATE TERMS
; These intermediate terms are modified to suit each site.
*RESET ; OR's the push button reset and computer reset
*TRACK_UP ; no tracks are down
*UP_TRAIN ; train going in the UP direction
*DOWN_TRAIN ; train going in the DOWN direction
*APPROACH_WARN ; train approach time < 20 sec
*FLASH_FAIL ; a flasher has failed or stuck in one position
*DO_WARNING ; Status of monitor is now WARNING
*FAULT_ON ; fault sub expression
*DO_FAULT ; Status of monitor is now FAULT
;Battery intermediate term
*BATTERY B ; battery expression for battery alarm values etc
;Lamp intermediate terms
*SS_LAMPS
L ;
allows
you to
set
the
number of SS flashing lamps
;;*SS_TIP
L ;
allows
you to
set
the
number of
SS boom steady lamps
*CS_LAMPS
L ;
allows
you to
set
the
number of CS flashing lamps
;;*CS_TIP L ; allows you to set the number of CS boom steady lamps
;******************************************************************* ;
START SPECIAL TIMERS WARNING ! WARNING ! WARNING ! ;
These timers are used by the system software.
; SPECIAL TIMERS MUST NOT BE ALTERED.
*TIMER_SHORT T ; timing test of NV battery test timer short
*TIMER_LONG T ; timing test of NV nattery test timer long
*BATT_TEST_TIMER T ; battery test timer
*EMERGENCY_SW T ; emergency switches left OFF for longer than set time
*NO_TRAIN T ; timer set for maximum period allowed with no trains
*NO_TEST T ; timer set for maximum period allowed with no tests
*TOO_LONG T ; crossing running for too long
; END SPECIAL TIMERS
;*******************************************************************
;*******************************************************************