User Manual, Firmware rev. 3.0 or LATER Owner's manual

120 Publication 1404-UM001F-EN-P - November 2009
Chapter 4 Communication
How to Clear or Preset Energy Counters by Using Communication
You may clear or preset the energy counters by performing a table
write to the Metering Real and Apparent Energy Results
table or the
Metering Reactive Energy and Amp-hour Results
table. These
read/write tables each contain 23 integer elements.
• Password: required to clear or preset an energy counter, returns
-1
• Parameter select: bitfield used to select parameter for clearing or
presetting
See below.
• Energy counter values: expressed in integer-array format, see
page 82
• Metering iteration: increments by 1 with each new set of results,
rolls to 0 at 32,767
The Parameter select bitfield value selects the parameter or parameters
to be cleared or preset during the current write, as shown in the table
below.
You may select the value at which the energy counters roll over to 0
in the Advanced Device Configuration
table.
Parameter Selection Bitfield Value
Bitfield Value Parameter
Binary Decimal Table 14 Table 15
000 0 - -
001 1 kWh forward kVARh forward
010 2 kWh reverse kVARh reverse
100 4 kVAh kAh
111 7 All All