Campbell Scientific LoggerNet Datalogger Support Software - Manual (Page 37)

Section 2. Installation, Operation and Backup Procedures
files and help files for all dataloggers supported by the CRBasic Editor. The
definition files are the files which provide the unique instructions and
parameters for each datalogger. The RTMCMediaLib directory contains all of
the media files that can be used by RTMC to provide graphics and sound for
your RTMC projects. Any custom graphics or sounds that you create and wish
to use in your project should be stored in one of these directories.
DevConfig and DevConfigLib directories – These directories contain the
files for each datalogger that will be used by the Device Configuration Utility.
LoggerNet directory – The ASCII data files that are saved to disk as a result
of data collection from the dataloggers are stored to the LoggerNet directory
with a *.dat extension. The Logs directory holds the logs that are created when
communication takes place between the LoggerNet server and client
applications, and the LoggerNet server and the dataloggers. These logs are
used to help troubleshoot communication problems.
The Sys directory holds the network map description (CsiLgrNet.xml) and the
binary data cache. (The data cache is a repository for the data which is
collected from the dataloggers by the LoggerNet server, and which each client
application accesses when processing that data. In the example above, folders
20, 28, and 33 represent the data caches for different dataloggers. See
Appendix D, Software Organization, for additional information.)
2.3.2 Backing up the Network Map and Data Files
As with any computer system that contains important information, the data
stored in the LoggerNet working directory should be backed up to a secure
archive on a regular basis. This is a prudent measure in case the hard disk
crashes or the computer suffers some other hardware failure that prevents
access to the stored data on the disk.
The maximum interval for backing up data files depends primarily on the
amount of data maintained in the datalogger memory. The datalogger’s final
storage is configured as ring memory that will overwrite itself once the storage
area or table is full. If the data is backed up more often than the oldest records
in the datalogger are overwritten, a complete data record can still be maintained
by restoring the data from the backup and then re-collecting the newest records
from the datalogger.
2.3.2.1 Performing a Manual Backup
LoggerNet provides a simple way to back up the network map, the LoggerNet
data cache, and user created files such as program files (CSI, DLD, or CR*),
Split report files (PAR), or ASCII data files (DAT). From the Setup Screen’s
menu, choose Network | Manual Backup. This opens the Backup wizard that
steps you through the process of creating the backup file.
You can choose to back up only the network map, or to back up the network
map and data cache. The network map will restore all settings and data
collection pointers for the dataloggers and other devices in the network. The
data cache is the binary database which contains the collected data from the
datalogger. Other files can be added as well.
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