(Note: previous colours are not shown on the file; they are only for
clarification)
This file is created when the data logger is connected to a USB socket
and the operating system of the computer or tablet or host device
reads the contents of the file.
It important to understand that the file is not necessarily created when
the file is opened by you.
When editing this file it is extremely important not to change the
position and length of the fields and the case of the characters as the
data logger will refuse to program itself if data is found in the wrong
position/format.
Also take in account that the parameters typed into the file that you
are editing with the computer are transferred to the data logger only
when the computer decides to. Normally this happens when you
'Save' with the text editor, but some operating systems require you to
unmount the data logger (UNIX command) or to go through the
process of 'Safely remove the drive' before the data is actually
programmed into the data logger.
The data logger features a red LED to inform you that data has been
actually stored on its memory by the computer operating system.
The data logger will also restart when an important data change like
erasing or calibration has been performed, these changes have
priority over date, time, starting time and scan rate which are not
programmed when a restart is processed.
When a restart occurs the data logger detaches and reattaches itself
to the USB, the device will update its local instance of the file
CONTROL.TXT and you need to close and reopen the file to see the
changes and to edit the file again.
The disk is supposed to be read only with the exclusion of
CONTROL.TXT, hence the disk cannot be formatted nor other files
can be written on it: any attempt will produce a disk error.
Geosignal XP 101K USB Data Logger
Copyright 2017-2018 all rights reserved
www.geosignal.com.au
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