Redundancy
Technical
REDUNDANCY
BACKUP SYSTEM
ECDIS dual systems installation includes ECDIS Monitoring station working as Master, and a
Planning station working as Slave ECDIS. The Planning station is used as backup. In case of
breakdown of the main ECDIS Monitoring station, the Planning station can immediately
replace the Master ECDIS and can be used for navigation.
CONTINUOUS MONITORING
To avoid any interruption and discontinuities in the ship’s position monitoring, the ECDIS
backup is connected to the second GPS. If the Master ECDIS breakdown occurs, the ship is
monitored on the backup system.
ACTIVE ROUTE
Monitoring workstation is responsible for the active route and waypoint. The active route and
waypoint information is sent continuously to the Planning station, which displays same route.
Any changes of active route are prohibited.
DUPLICATE DATABASES
All ECDIS stations should use the same chart databases. The user is responsible of maintaining
the consistency of the chart collections and transferring routes from the Planning station to
the Monitoring station.
LOGBOOK
The logbook database, containing all navigation information of the current voyage, is stored
on both workstations. In case of breakdown, no data is lost and the second PC continues to
store navigation data to the logbook. Time interval of logbook recording could not be
changed and is equal to 15 seconds.
SET UP
The logbook window gives access to the button Change Settings. Tick on the check box
Save in the Voyage Data recorder section to make sure that the logbook will be recorded by
VDR. A logbook recorded in VDR could be replayed in ECDIS900 together with other data.
IMPORTANT
Logbook settings are not synchronized in the LAN.
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