4.15
Date Code 20090730 Instruction Manual SEL-734 Meter
Metering
Energy Interface
Energy Preload
The ACSELERATOR QuickSet Energy Preload settings accept settings in
primary Kilo units and with a maximum input of 99,999,999,999.
Modbus
Energy Registers
The SEL-734 reports Modbus energy records 0400–045F in secondary units
as LONG100s scaled by100 with unity scaling and rollover at 9,999,999.99.
Load Profile Registers
The SEL-734 reports Modbus LDP records 2000–2FFF in secondary units as
LONG100s scaled by 100 and rollover at 9,999,999.99.
Front-Panel Energy Registers
The SEL-734 reports Modbus front-panel energy records 0480–04DF in
primary as LONGs affected by the FP_DND, FP_DECPL, and DP_SCALE
settings. Energies displayed as LONGs rollover at 999,999,999 and do not
include decimal places.
DNP
Counters
The SEL-734 reports DNP counters (Object 20, Index 00–38) in primary units
affected by the DECPLE setting and per-point scaling. Optimized for
reporting energy data, binary counters rollover at 2
32
for Variation 6 or 2
16
for
Variation 5 values.
Load Profile Counters
The SEL-734 reports DNP Load Profile counters (Object 20, Index 40–1008)
in secondary units scaled by 100. Load Profile counter information rolls over
at 9,999,999.99. SEL recommends using 32-bit counter information because
the 16-bit load profile counter information does not rollover in a predictable
manor.
Analog Inputs
SEL recommends Analog Inputs (Object 30) for all analog data except for
energy because the Analog Input data saturates at their binary full-scale values
of 2
32
or 2
16
and do not rollover.
Time-of-Use (TOU)
ACSELERATOR QuickSet HMI
The ACSELERATOR QuickSet TOU HMI report displays Time-of-Use data in
primary Mega units that do not rollover.
MODBUS TOU Registers
The SEL-734 reports Modbus TOU energy data in primary units scaled by the
SCALE and DND settings.
Front-Panel LCD (HMI)
The front-panel LCD displays Time-of-Use energy in primary units scaled by
the FP_SCALE, FP_DND, and FP_DECPL settings.
Courtesy of NationalSwitchgear.com
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