Avidyne IFD540, Руководство пилота

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6-46 General
The “Logs” LSK on that Maintenance Mode page provides two
options for downloading this data via dedicated LSKs. The first
option (“Full”) allows a download of
all data logs onto the USB
fob. The second option (“Since Last”) downloads the data logged
since the last time a download was completed. Since the logs
contain a large amount of data, the second option will be a
quicker option in almost every case.
Download times are highly dependent on the number and types
of logs being downloaded and the length of time since the last
download. Times can range from a few seconds to more than 15
minutes. The more often logs are downloaded, the shorter the
download times will be.
In order to provide an indication of download progress, a progress
bar will be presented with both a symbolic aircraft indicating
download in progress and a % complete estimate. The files to be
downloaded can have one of several states – “OK”, “In
progress…”, “Pending”, “Skipped”, “Active”, “Failed”.
When downloaded to the USB fob, the data logs will be saved in
.csv files with a unit number prefix (e.g. “1_” or “2_”). This can be
imported into newer versions of Microsoft Excel in a table format.
The data can then be plotted or analyzed by several third-party
tools. Note that files can easily contain 50MB or more of data.
Data included in the files are as follows:
System Log
Date/Time stamp GPSS state
Power On OBS value
OAT, if available Desired track
Localizer deviation Nav frequency
Glideslope deviation Course select value, if known
Ground speed Nav type
Ground track VOR course
Crosstrack deviation GPS altitude
Vertical deviation Distance to active waypoint
Display mode FMS course
Nav mode Active waypoint information
GPS parameters FLTA Status
Magnetic Variation