© 2008 Siemens Energy & Automation, Inc. All Rights Reserved
ACCESS 9340 and 9360 Meters PMCM-9340D-0208
Appendix C—EN50160 Evaluation 2/2008
EN–228
Operation with EN50160 Enabled
This section describes how the ACCESS 9360 operation is affected
when EN50160 evaluation is enabled.
Resetting Statistics
You can reset statistics for the EN50160 evaluations with the
command 11100. A parameter value of 9999 will reset all items. A
timestamp is provided in registers for each item indicating when the
last reset was performed. This command is disabled when revenue
security is active.
NOTE: You should reset statistics when you enable EN50160 for the
first time and also whenever you make any changes to the basic
meter setup such as changing the nominal voltage. See “Setting Up
EN50160 Evaluation from the Display” on page 239.
Alarms Allocated for Evaluations
To accomplish some of the evaluations required and to provide a
record of events in the on-board alarm log, the ACCESS 9360 uses
disturbance alarms. When the evaluation is enabled, certain alarm
positions will be claimed for use in the evaluation. You cannot use
these alarms for other purposes while the evaluation is enabled.
These alarms include:
• Disturbance for Voltage Swells and Sags (ACCESS 9360):
Disturbance alarm positions 1-3 and 7-9
NOTE: The position depends on the system type (register 3902).
“EN50160” is included in the alarm label for alarms being used by this
evaluation.
Harmonic Calculations
When EN50160 evaluation is enabled, the harmonic calculations will
be set to update every 10 seconds. You can select the format of the
harmonic calculations to be %Nominal, %Fundamental, or %RMS.
Time Intervals
Time intervals are synchronized with the Trending and Forecasting
feature. Weekly values will be posted at midnight of the morning of
the “First Day of Week” configured in register 3905. Yearly values will
be based on the calendar year.
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