A-17 Appendix A Alert and Maintenance INFO List 
 
 
 
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APP A 
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Message Explanation  Advice 
Anemometer(Communic
ation failed, Main LAN) 
Communication with 
Anemometer cannot be 
performed via Main LAN. 
Check the condition of Anemometer and Main 
LAN.  
If it cannot be recovered after you check the 
connection of the equipment cable in 
power-off status and restart, turn off the 
power of the device and contact your 
distributor. 
Anemometer(Communic
ation failed, Sub LAN) 
Communication with 
Anemometer cannot be 
performed via Sub LAN. 
Check the condition of Anemometer and Sub 
LAN.  
If it cannot be recovered after you check the 
connection of the equipment cable in 
power-off status and restart, turn off the 
power of the device and contact your 
distributor. 
Autopilot(Communicatio
n Failed, Main LAN) 
Communication with 
Autopilot cannot be 
performed via Main LAN. 
"Check the condition of Autopilot and Main 
LAN.  
If it cannot be recovered after you check the 
connection of the equipment cable in 
power-off status and restart, turn off the 
power of the device and contact your 
distributor." 
Autopilot(Communicatio
n Failed, Sub LAN) 
Communication with 
Autopilot cannot be 
performed via Sub LAN. 
"Check the condition of Autopilot and Sub 
LAN.  
If it cannot be recovered after you check the 
connection of the equipment cable in 
power-off status and restart, turn off the 
power of the device and contact your 
distributor." 
Azimuth Thruster 
#n(invalid) 
There is a format error or 
a status error of the data. 
Check the sensor condition. 
Azimuth Thruster #n(not 
plausible) 
There is a range error of 
the data. 
Check the sensor condition. 
Azimuth Thruster 
#n(unavailable) 
The data cannot be 
received. 
Check the condition of the sensor and the 
communication path. 
BNWAS(Communication 
failed, Main LAN) 
Communication with 
BNWAS cannot be 
performed via Main LAN. 
"Check the condition of BNWAS and Main 
LAN.  
If it cannot be recovered after you check the 
connection of the equipment cable in 
power-off status and restart, turn off the 
power of the device and contact your 
distributor." 
BNWAS(Communication 
failed, Sub LAN) 
Communication with 
BNWAS cannot be 
performed via Sub LAN. 
"Check the condition of BNWAS and Sub 
LAN.  
If it cannot be recovered after you check the 
connection of the equipment cable in 
power-off status and restart, turn off the 
power of the device and contact your 
distributor." 
Bow Azimuth Thruster 
#n (invalid) 
There is a format error or 
a status error of the data. 
Check the sensor condition.