Gulf Coast Data Concepts X16-5, User Manual

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2.6 System Configuration Options
The X16-5 is configured using a set of tags and settings stored in a text file named “config.txt”, which
is located in the root directory of the microSD card. The logger reads the configuration file at boot
time. Table 1 lists the configuration file tags. Tags that require a setting must be followed by an equal
sign (“=”) and an applicable tag setting. A line finishes with a newline character. Tags are not case
sensitive. Tab and space characters are ignored. Lines starting with a semicolon (“;”) are treated as
comments and ignored by the logger. The logger will use default settings if the config.txt file is not
found.
Table 1: Configuration File Tags and Descriptions
Tag Valid Settings Default Description
absoluteTime - Off Time stamps relative to epoch (Jan 1, 1970)
deadBand An integer between
0 and 16384 0 A new sample is recorded if any sensor axis
exceeds the previous recorded reading by the
deadband value
deadBandTimeOut An integer between
0 and 16384 3 Specifies the period in seconds when a sample is
recorded regardless of the deadband setting
dirName Character text /GCDC Defines directory name to store data files
disableCharger - Off Deactivates the charger circuit to the battery
dwell An integer between
0 and 65535 1 The number of samples recorded after a deadband
threshold triggered event
fileName Character text DATA- File name prefix for the data files
minBattVoltage An integer greater
than 0 3200 set the minimum operating battery voltage (mV)
rebootOnDisconnect - Off The presence of this tag causes the system to start
recording after disconnect from a USB port.
samplesPerFile An integer greater
than 0 90000 The number of lines of data per data file before a
new file is created
sampleRate 12, 25, 50, 100,
200, 400 100 Sets the rate at which data is collected and recorded
to the microSD card.
stopOnVusb - Off Stops data logging if 5v USB power is present
statusIndicators “Normal”, “High”,
“Off” Normal LED status indicators can be activated with normal
brightness (Normal), activated with high brightness
(High), or completely deactivated (Off).
wakeUpTime integers Off Activates logger at specific times
Gulf Coast Data Concepts Page 11 X16-5, Rev New
Do not use the Windows Notepad editor because it does not terminate new lines properly.
GCDC recommends Windows Wordpad or + to edit the config.txt file.