4.2 Time Based Datalogging
This type of datalogging stores data with a timestamp at a preset time interval. This can be used to take a snapshot
of the system at regular time intervals. This data can be used to do in-depth analysis of the system. The number of
parameters to be logged and which parameters to store can also be configured by the user through display as well
as modbus. Various configuration registers can be found on addresses 46187 to 46251.
The number of entries stored varies according to the number of parameters logged i.e. more entries can be stored
if less number of parameters are being logged. User can configure the meter to store 1 to 30 parameters. And the
time interval can vary from 1 to 60 minutes. Editing of these parameters is not allowed while the logging is on.
Each entry consists of number of parameters selected by the user in addition to date and time of the entry log.
Max Memory Locations = 273030
Actual parameter stored in Each log = Date +time+Number of parameter selected by user
for ex. Number of parameter selected by user = 1.
Actual parameter stored in Each log = 1(Date) +1(time)+ 1 = 3
Maximum log that can be stored = Max Memory Location/Actual parameter stored in Each log
=273030/3= 91010
Timelog Interval setting = 15 minutes
Log in one day = (60 /Timelog Interval setting) * 24
=(60/15)*24 = 96
Max Days = Maximum log that can be stored / log in one day
= 91010 / 96 = 948.20 days
After all memory allocated locations are filled with logging data, the meter will start shifting data by first in first
out queue i.e. at any time after all the locations are used once, the user will have access to the latest logged
maximum number of entries.
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