© 2008 Siemens Energy & Automation, Inc. All Rights Reserved.
ACCESS 9340 and 9360 Meters PMCM-9340D-0208
Chapter 4—Metering Capabilities 2/2008
EN–40
Min/Max Values for Real-time Readings
When certain one-second real-time readings reach their highest or
lowest value, the meter saves the values in its nonvolatile memory.
These values are called the minimum and maximum (min/max)
values.
The meter stores the min/max values for the current month and
previous month. After the end of each month, the meter moves the
current month’s min/max values into the previous month’s register
space and resets the current month’s min/max values. The current
month’s min/max values can be reset manually at any time using the
meter display or WinPM.Net. After the min/max values are reset, the
meter records the date and time. The real-time readings evaluated
are:
• Min/Max Voltage L-L
• Min/Max Voltage L-N
• Min/Max Current
• Min/Max Voltage L-L, Unbalance
• Min/Max Voltage L-N, Unbalance
• Min/Max Total True Power Factor
• Min/Max Total Displacement Power Factor
• Min/Max Real Power Total
• Min/Max Reactive Power Total
• Min/Max Apparent Power Total
• Min/Max THD/thd Voltage L-L
• Min/Max THD/thd Voltage L-N
• Min/Max THD/thd Current
• Min/Max Frequency
• Min/Max Voltage N-ground (see the note below)
• Min/Max Current, Neutral (see the note below)
NOTE: Min/Max values for Vng and In are not available from the
display. Use the display to read registers (see “Read and Write
Registers” on page 36) or the ACCESS 9340/9360 Min/Max Reading
Table in WinPM.Net (refer to WinPM.Net Help for more information).
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