A-27 Appendix A Alert and Maintenance INFO List 
 
 
 
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APP A 
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Message Explanation  Advice 
Sea TEMP(invalid)  There is a format error or 
a status error of the Water 
temperature data. 
Check the sensor condition. Switch to a 
sensor in good condition, if available. 
Sea TEMP(unavailable) 
The Water temperature 
data cannot be received. 
Check the condition of the sensor and the 
communication path. Switch to a sensor in 
ood condition, if available. 
Ship's 
clock(Communication 
failed, Main LAN) 
Communication with 
Ship's clock cannot be 
performed via Main LAN. 
Check the condition of Ship's clock 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. 
Ship's 
clock(Communication 
failed, Sub LAN) 
Communication with 
Ship's clock cannot be 
performed via Sub LAN. 
Check the condition of Ship's clock 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. 
SLC1 - #n 
(Communication failed, 
Main LAN) 
Communication with 
SLC1-#n cannot be 
performed via Main LAN. 
Check the condition of SLC1-#n 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. 
SLC2- #n 
(Communication failed, 
Sub LAN) 
Communication with 
SLC2-#n cannot be 
performed via Sub LAN. 
Check the condition of SLC2-#n 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. 
Stbd Main 
Propeller(invalid) 
There is a format error or 
a status error of the data. 
Check the sensor condition. 
Stbd Main Propeller(not 
plausible) 
There is a range error of 
the data. 
Check the sensor condition. 
Stbd Main 
Propeller(unavailable) 
The data cannot be 
received. 
Check the condition of the sensor and the 
communication path. 
Stern Thruster #n 
(invalid) 
There is a format error or 
a status error of the data. 
Check the sensor condition. 
Stern Thruster #n (not 
plausible) 
There is a range error of 
the data. 
Check the sensor condition. 
Stern Thruster #n 
(unavailable) 
The data cannot be 
received. 
Check the condition of the sensor and the 
communication path. 
Time(invalid)  There is a format error or 
a status error of the Time 
data. 
Check the sensor condition. Switch to a 
sensor in good condition, if available. 
Time(unavailable)  The Time data cannot be 
received. 
Check the condition of the sensor and the 
communication path. Switch to a sensor in 
ood condition, if available.