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Service Manual
Third edition, June 1997
moving surfaces are measured more often. This func-
tion can be useful if there are many tanks, and some of
them have large level rates when loading or discharg-
ing.
3.15 Level Unit – LCI Status
This window shows the status of the LCI. If you suspect that
there is some problem with an LCM, this window provides
some good information.
The following information is shown in this window:
• Wdog reset cnt. This is a counter that counts the num-
ber of times the watchdog has triggered since the last
time the Level Unit was powered on. The watchdog is a
part of the hardware that triggers a reset if the software
gets “stuck”. If it does, the watch dog causes the soft-
ware to restart. This indication should normally be very
low. If there are frequent restarts of the system and this
counter shows large values, there may be a problem
with the LCI. Try exchanging it.
• Service status and Service code. Both of these values
can be used by the Saab service engineers. They are of
no use to the crew on board the ship.
The LCM status box shows the status of the communication
between the LCM and LCI:
• MTA error LCM 1 or 2. Indication of service message
failure between LCI and LCM. If there is an error so
that this box becomes checked, the Level Unit will try to
restart itself. A message will be displayed “Level Unit
restarted”.