March 2021
Page 110 of 143
59812-K007 Rev 17
Business Confidential
Due to the memory capacity with normal operation of the system it is expected that memory will last
over 20 years before the memory limit is met.
Note the system configuration data is not stored in this memory and is not affected by potential loss of
data when the memory limit is reached.
To identify the type of fault on the Control Unit access the Engine Status Screen, see section 3.4.
Figure 168
Engine Status Screen Memory Fault
Identify the fault being indicated, in this case a Control Unit Memory fault.
Alternatively, an inspection of the engine event log, see section 3.6, will show one of the below events:
Warning Memory Limit Met
Engine X
Having established which Control Unit is in fault and that the Warning Memory Limit Met fault has
occurred the Control Unit PCB should be replaced.
5.2.11
Watchdog Fault
The detector continually checks the operation of the detector software to ensure that it has not been
corrupted or locked up. If an error in the software operation occurs an automatic reset will be performed
to restart the detector operation. If the software has been successfully restarted the performance of an
automatic reset is indicated as a Watchdog Fault.
5.2.11.1
Detector software restarted
To identify which detector is at fault, from the Engine Overview Screen, Figure 148, select the required
engine.
Figure 169
Engine Screen Detector Fault
Select the faulty detector to access the Detector Status Screen.