T
E C H N I C A L
R
E F E R E N C E
Database Organization
94
▲
DEGDAYS
The software automatically creates a DEGDAYS directory into which it stores
all PC degree-day information.
Station Configuration File
When you add a station, the software creates a station configuration file (called
“station.cfg”) in the station directory. Each station has its own discrete configura-
tion file which saves the following program settings for the appropriate station.
▲
Station Configuration Settings
▲
Serial Port Settings
▲
Calibration Numbers
See “Calibration Numbers” on page 93.
In order to recognize a station, you will need a station configuration file (in the
same directory as the database files). When opening a station, the software locates
station configuration files and reads the station name from them. If you copy
database files (to share or transfer data, for example) make sure to copy the sta-
tion configuration file with them. As long as the station configuration file is in the
same directory as the database files, you should be able to read the database files
normally.
Database Files
The software stores downloaded data in monthly files. Whenever you download,
the software saves database files into the open station's directory. The database
file name indicates the year and month of the data. The three character file exten-
sion indicates the station from which they were downloaded. Database files con-
taining data stored at a 30 minute archive interval require approximately 36K of
disk space per month of data. The file size changes in a linear fashion depending
on the archive interval. For example, data stored at a 1 minute interval requires
approximately 1MB/month while the data stored at a 2 hour interval requires
approximately 9K/month.
You cannot combine database files. For example, if you download half of your
April data to one directory and the other half to another directory, you cannot
combine the two database files into a single file containing all of your April data.
(If you do not clear your archive memory, you may be able to download the data
into the correct file at a later date.) Take care when downloading to make sure the
correct station is the open station.
