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Figure 38: Extract from a configuration file
6.5.2.2 The measured value directories
With the data logger DLU there is always at least one mean value archive ARCH_AV1 and
usually one extreme value archive ARCH_EX1. The name of a day file is made up of the
date of the day, starting with the year e.g. 20170831 for August 31, 2017 and the ending .txt.
In addition, there is a configuration file descfile.ini in the archive, which describes the data.
All measured values in an archive have the same storage cycle. Measured values with
different storage intervals use different archives. Average values are stored in archives with
the name ARCH_AVx, where x can be a number from 1 to a maximum of 16.
Extreme values are stored in archives with the name ARCH_EXy, where y can be a number
from 1 to a maximum of 16.
If the configuration changes in an archive, the current directory is renamed and given the
ending _old e.g. ARCH_AV1_old.
Figure 39: Sample measured value directories
The figure above shows the content of an archive with the configuration file and several daily
files.
Each day file contains the measured values in the form of data lines. Each line of data begins
with the time stamp, which consists of the date and time. Date and time are separated by a
blank sign. The time stamp is followed by the measured values, which are separated by