H.11
Date Code 20090730 Instruction Manual SEL-734 Meter
Analog Quantities
Time-of-Use (TOU)
The following quantities require a prefix, and either a qualifier for the TOU
rate for the ranking of peak values. Follow Table H. 14 to determine which
prefix or qualifier to apply when using an analog quantity.
Examples:
➤ Present Season 3-Phase Apparent Energy for rate C: PRES_MVAH_C
➤ Self-Read 3 Previous Season Peak Demand for rate B: S3PREV_MW_B_PD
Ta b l e H .1 1 S EL OGIC Math Variables
Name Description Units
Usage
MAT HMI LDP DP Logic DNP Modbus CASC FM AO
MVnn SELOGIC math variable nn present
value
xxxxx
x
Table H.12 DNP Remote Analog Output Objects
Name Description Units
Usage
MAT HMI LDP DP Logic DNP Modbus CASC FM AO
RAxx DNP Analog Outputs. xx = 00–31
xx
x
Table H.13 Transformer Ratio Settings
Name Description Units
Usage
MAT HMI LDP DP Logic DNP Modbus CASC FM AO
PTR PT Ratio
xx x x
CTR Phase CT Ration
xx x x
CTRN Neutral CT Ratio
xx x x
Table H.14 Prefix and Qualifier Descriptions
Prefix or
Qualifier
Placeholder
Valid Prefix or Qualifier Description
Z PRES, PREV, SnPRES, or SnPREV. Select between present season or previous season. Substitute n with 1, 2, or
3, to indicate which self read to use.
x A, B, C, D, E, or F Substitute x with the TOU rate, A–F, to use.
n 1, 2, 3, 4, or 5 Substitute n with the ranking of peak value, 1–5, to use.
Table H.15 Time-of-Use (Sheet 1 of 4)
Name Description Units
Usage
DAT HMI LDP DP Logic DNP Modbus
FM
(Pri)
AO
Z_MWH_x_TOT 3-phase real energy total
for rate x
xx x
Z_MVAH_x_TOT 3-phase apparent energy
total for rate x
xx x
Z_MVARH_x_TOT 3-phase total reactive
energy for rate x
xx x
Z_MWH_x_REC 3-phase real energy
received for rate x
xx x
Courtesy of NationalSwitchgear.com
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