Logging
Logging overview
The meter’s logging frameworks include factory-configured data recorders,
waveform recorders and event logs.
The logging frameworks store data related to:
•
Power quality and compliance
•
Energy and demand
•
Revenue metering
•
Trending and forecasting
•
Meter events
When your system’s nominal parameters are programmed into the meter, power
quality events such as sags, swells and transients are automatically detected, and
associated voltage and current data and waveforms are logged. Meter data is
stored in non-volatile memory, so data is retained even if the meter loses power. If
your system nominal values fluctuate, you can configure the meter’s setpoint
learning feature to learn your power system’s normal operating values, then use
that information to help identify voltage sags and swells.
The meter’s logging framework also supports burst data logging for sag/swell
events. When burst data logging is enabled, additional data records immediately
before and immediately after the sag/swell event are captured. Energy
management systems can then retrieve this information for use in applications
such as power event analysis.
NOTE:
To maximize the performance of your power management system, it is
recommended that devices be connected directly to an Ethernet network.
You can also configure the meter to email data from the logging frameworks.
Download the
Internal email client feature
technical note at
www.usa.siemens.com/pds for instructions on how to configure your meter to
email logged data.
Meter events are recorded in the meter’s onboard event log. You can also
configure the meter to record events to an external SysLog (systems log) server.
Default data logging configuration
The meter’s default framework includes factory-configured data logs (data
recorders).
These data logs and their configuration are used by other components of your
power monitoring system. Do not change the default configuration of any of the
logs unless you understand the impact of the change on these power monitoring
system components, the data they use and your meter’s memory.
The meter can support up to 100 data logs (data recorders), which can each
record up to 16 different parameters.
Revenue log
The Revenue Log (Data Rec 1) is configured for use with UTS MV-90 billing
software. Factory settings for this data recorder:
•
Log depth = 3360 records (35 days)
•
Interval = 900 seconds (15 minutes)
By default, it logs the following values:
7EN05-0390-00
157
Summary of Contents for 9810 Series
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