6. Click Select to define the digital input. The input’s state determines whether conditional
energy is accumulated. When this digital input is on, conditional energy is accumulated.
NOTE: It is recommended to set Assigned Input to No Connection to disable the
conditional energy feature by removing any port associations.
7. Click OK to save your configuration.
Trending and forecasting overview
Trending and forecasting is a feature on your device that predicts the next set of measured or
calculated data by plotting and analyzing trends in historical data.
Trending and forecasting data is a useful tool to help analyze changes in load and power quality
and forecasting values such as demand. For your meter’s trending and forecasting feature to
work, you only need to give the meter time to accumulate data.
For more information on the Trending and Forecasting module, see ION Reference, available on
www.usa.siemens.com/pds.
Trending and forecasting implementation
Data used for trending and forecasting is logged for specific intervals:
•
Every hour for the last 24 hours
•
Every day for the last month
•
Every week for the last 8 weeks
•
Every month for the last 12 months
The following parameters are configured for trending and forecasting using ION Setup:
kW sd del-rec (demand) Freq (frequency)
Vll ab I a mean
Vll bc I b mean
Vll ca I c mean
Vll avg I avg mean
You can configure the start day of the week for trending and forecasting using the Clock setup
assistant in ION Setup.
Viewing trending and forecasting data on your meter’s webpages
You can select data for forecasting and trending and view the resulting information using your
meter’s webpages.
For trending and forecasting to operate, your meter must have accumulated data for at least two
of the specified intervals. For example, if you want to view a daily graph, your meter must have
accumulated data for at least two previous days before the present day.
9810 series - User manual Measurements
7EN05-0390-08 256
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