Siemens 9410DC, Руководство пользователя, Страница: 101 / 172

Logging 9410 series
Log depth configuration
You can change the number of records (depth) stored in the log.
Use ION Setup to change the number of records (depth) stored in the log. Changing
how the log records information (circular, or stop-when-full) is an advanced procedure
to change the RecordMode setup register in the Data Recorder and Waveform
Recorder modules.
Data logs and circular format waveform recorders have a minimum depth of 2 records.
Log interval configuration
You can change the logging intervals for the revenue and energy demand log.
Use ION Setup to change the logging intervals for the revenue and energy demand
log.
Changing the interval for other data logs is an advanced procedure to modify the
Periodic Timer module’s Period setup register, which triggers the data log’s recording.
Do not change the Periodic Timer module’s Sync Mode setup register.
The default Periodic Timer modules that control the frequency of different data
recording are as follows:
• Revenue Log Trg: controls the frequency of the logging of revenue values
• Loss Log Trg: controls the frequency of Loss Compensation Data logging
• EgyDmd Log Trg: controls the frequency of logging for the Energy and Demand
Log (this log is used by WinPM.Net software to generate reports.
• Hist Log Trg: controls the frequency of Historic Data logging
• Harm Log Trg: controls the frequency of Harmonics logging
Programming your meter to write to any data recorder at continuous intervals shorter
than 60 seconds (heavy logging configuration) can cause loss of data in the event of a
power failure.
NOTICE
DATA LOSS
Failure to follow these instructions can result in data loss.
Use an uninterruptible power supply (UPS) if you program your meter for heavy
logging.
Data log memory calculations
The amount of memory required to store data and event logs depends on the number
of parameters being logged and the frequency with which these parameters are
logged.
The memory required is calculated as follows:
Memory consumption for each record (in Bytes) = [(number of parameters x 5) + 8]
For example, a data log recording three parameters consumes 23 Bytes of data. If the
data is recorded every 15 minutes for 35 days, the data log requires approximately 80
kiloBytes of logging memory.
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