Conext Configuration Tool Manual

System Logging
4–8 975-0720-01-01
This manual is for use by qualified personnel only
Limitations
There is no particular limit to the number of data points that can be logged
simultaneously. Most spreadsheet programs can import up to 256 columns of
data. Taking into account the time and date columns, it should be possible to log
up to 254 data points.
Similarly, there is no particular limit to the length of the log file. However, earlier
versions of Excel can only accept 65536 rows of data. These earlier versions
(2003 and older) would be able to import an all-day log file recorded with a 2-
second period but not a 1-second period.
Using the Data
All logged data goes to the Conext Configuration Tool log directory on your
computer, typically in C:\User\AppData\Roaming\CnxtCfgTool\LogFiles. You can
navigate directly to this folder by clicking Open Log Folder on the System
Logging screen.
The log files are in a Comma-Separated Values (CSV) format that can be
imported directly into any spreadsheet program. This is just a text file with one
line per log entry where the values are separated by commas. Date, time and
other string type values are enclosed in double quotes. Integer, floating point and
null values are not.
The first five lines of the file contain header information to indicate the meaning of
each column.
Device
The first header line indicates the device that the data is coming from. The
identifier is the device function, followed by its instance number. For instance,
Charger 01 for a charge controller.
PGN
The second line indicates the mnemonic for the PGN or Parameter Group
Number. The PGN indicates the type of message from the device.
ID
The third ID line indicates which connection the PGN is associated with, if any.
The ID would distinguish between PGNs for AcInStsRms for the generator from
those for the grid.