Schweitzer Engineering Laboratories SEL-734 - Energy Interface; Table 4.8 Energy Interface Table

4.14
SEL-734 Meter Instruction Manual Date Code 20090730
Metering
Energy Interface
Preloading
Energy Values
You can preload the energy values in the meter using the SET E command.
This command allows you to preload energy values from 0 to 99,999,999,999
and is set in KILO units. Use this command to preload energy values when
replacing a meter for maintenance or upgrade.
Energy Interface
Introduction The SEL-734 represents metering values differently through the interface of
each protocol. The list below details how each interface reports energy data
and illustrates how the SEL-734 displays watt-hours.
Overview The Energy Interface Table (Table 4.8) outlines the effect of various SEL-734
settings on each energy interface.
Interfaces
Front-Panel LCD (HMI)
The front-panel LCD and SEL-ASCII reports display energy values in scaled
primary units affected by the FP_SCALE, FP_DND, and FP_DECPL settings.
ACSELERATOR QuickSet Energy Report
The ACSELERATOR QuickSet Energy report displays energy values in scaled
primary units affected by the SCALE, DND, and DECPL settings.
ACSELERATOR QuickSet LDP Report
The ACSELERATOR QuickSet LDP report displays energy values in secondary
units with no scaling. The LDP report includes the CTR and PTR values
allowing post-read calculation of primary units.
Tab le 4. 8 Energy Interface Table
Interface Scaling
Number
of digits
Number of
decimal
places
MEGA KILO UNITY Pri Sec Rollover
Max digits
(including
decimal places)
Front-Panel
LCD
FP_SCALE FP_DND FP_DECPL X X X X X 11
ACSELERATOR
QuickSet
Energy
SCALE DND DECPL X X X X X 8
ACSELERATOR
QuickSet LDP
2XXX9
Modbus Energy x100 2 X X X 9
Modbus LDP x100 2 X X X 9
DNP Counters DECPLE OR
PER POINT
XXX2
32
or 2
16
depend-
ing on variation
DNP LDP
Counters
x100 2 X X X 9
Fast Meter FLOAT 32 X X 6
Fast Message 0 X X X 9
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