E-Mon E-PS-A-RTU-N - Manual (Page 64)

Chapter 4 Power
S O F T W A R E G E N E R A L M E T E R S E T U P
64 PowerSmart+ Advanced Power Quality Meter
The available options are described in the following table:
Parameter Options Default Description
Country Default, or country
name Default Defines calendar setting. The default
setting stands for the U.S.A.
Daylight savings
time Disabled
Enabled
Enabled When DST is disabled, the RTC
operates in standard time only. When
enabled, the device automatically
updates the time at 2:00 AM at the
pre-defined DST switch dates.
DST start month
DST start week
DST start weekday
Month-week-
weekday
Week = 1 st , 2 nd , 3 rd ,
4 th or Last (last week
of the month)
First
Sunday in
April The date when Daylight Savings Time
begins. The DST switch point is
specified by the month, week of the
month and weekday. By default, DST
starts at 2:00 AM on the first Sunday
in April of each year.
DST end month
DST end week
DST end weekday
Month-week-
weekday
Week = 1 st , 2 nd , 3 rd ,
4 th or Last (last week
of the month)
Last
Sunday in
October The date when Daylight Savings Time
ends. The DST switch point is
specified by the month, week of the
month and weekday. By default, DST
ends at 2:00 AM on the last Sunday
in October of each year.
Time
synchronization
input None
DI1
DI2 None The external port receiving the time
synchronization pulses
Daylight Savings Time
The daylight savings time option is enabled in the PowerSmart+ Advanced PQM by
default, and the default daylight savings time change points are preset for the
U.S.A. When the daylight savings time is enabled, the meter automatically adjusts
the device clock at 02.00 AM when daylight savings time begins/ends.
If the daylight savings time option is disabled, you need to manually adjust the
device clock for daylight savings time.
Time Synchronization Pulses
External time synchronization pulses can be delivered through one of the digital inputs. If a
digital input is selected as the time synchronization source, the edge of an external pulse
adjusts the device clock at the nearest whole minute. The time accuracy could be affected
by the debounce time of the digital input, and by the operation delay of the external relay.