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dc2023afa
DEMO MANUAL DC2023A
aDvanceD Demo BoarD operations
What Is a Fault Log?
A fault log is a non-volatile record of the power system
leading up to the time of fault. It holds the most recent
monitored values (up-time, voltage, current, temperature)
that can be analyzed to help determine the cause of the
fault. It is a powerful diagnostic feature of the LTM2987
on the DC2023A demo board.
Create a Fault and Fault Log
To create a fault log, you must create a fault, as described
in the Creating a Fault section. If multiple boards are
configured, select the appropriate device in the system
tree by clicking on the appropriate LTM2987 chip. We will
proceed to work with the fault log.
Working with the Fault Log
Once a fault has occurred, the Fault Log (FL) icon will show
a red (+) sign on it, indicating that the GUI has detected a
fault log in the device. Clicking the icon will bring
up a dialog box. Note that it is context sensitive.
Be sure that the desired device is selected in the
system tree.
Notice that the checkbox “Log to EEPROM on Fault” is
checked. Once a fault occurs, the device will automatically
write the fault log data to EEPROM (NVM). At this point,
the log is locked and will not change until it is cleared by
the user. To read the EEPROM log data, first click the “NVM
to RAM” button. At this point the RAM Log is locked and
not updated even though the telemetry readings continue.
Click the “Read RAM Log” button. The log data will appear
in the text box below.
