http://manual.spirit-system.com/index.php?title=Configuration#DIAGNOSTIC_TAB5.3.3 LOG VIEWER
The log is used to record events during flight. If a problem occurs and the reason isn't immediately known or evident, checking the log can help in identifying the issue.
It works in such a way that it records various events from the time the unit is powered on. If an event occurred you can see this in the log, reporting to the log is done every 10sec. When you click the Open log button you can see the current flight log which contains all the events from the last flight. When the power is disconnected, the log is cleared.
In the case of a major problem occurring during the flight Tr.png, the log is then saved permanently to the unit's memory and remains there until such time as the log is opened. If there is a saved log in memory, the user is advised with the message “Log from previous flight is available!” and the log from the flight when the problem occurred is opened. For example, when a signal is lost or the power supply failed you can find this in the log. The log from the first flight where the major problem occurred is always saved. If this is not opened, then it will not be overwritten with a newer one. In this state, the user is also notified by different cyclic pitch pump during the initialization process - elevator servo will change it's movement direction.
