The SCAL_VAL signal consists of scaled value (according to parameter
Scale
), time and status
information.
17.1.8 Technical data
IP14092-1 v1
M13404-2 v5
Table 802: PCFCNT technical data
Function Setting range Accuracy
Input frequency See Binary Input Module (BIM) -
Cycle time for report of
counter value
(1–3600) s -
17.2 Function for energy calculation and demand handling
ETPMMTR
SEMOD153638-1 v2
17.2.1 Identification
SEMOD175537-2 v4
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Function for energy calculation and
demand handling
ETPMMTR W_Varh -
17.2.2 Functionality
GUID-6898E29B-DA70-421C-837C-1BBED8C63A7A v2
Measurements function block (CVMMXN) can be used to measure active as well as reactive power
values. Function for energy calculation and demand handling (ETPMMTR) uses measured active
and reactive power as input and calculates the accumulated active and reactive energy pulses, in
forward and reverse direction. Energy values can be read or generated as pulses. Maximum
demand power values are also calculated by the function. This function includes zero point
clamping to remove noise from the input signal. As output of this function: periodic energy
calculations, integration of energy values, calculation of energy pulses, alarm signals for limit
violation of energy values and maximum power demand, can be found.
The values of active and reactive energies are calculated from the input power values by
integrating them over a selected time
tEnergy
. The integration of active and reactive energy values
will happen in both forward and reverse directions. These energy values are available as output
signals and also as pulse outputs. Integration of energy values can be controlled by inputs
(STARTACC and STOPACC) and
EnaAcc
setting and it can be reset to initial values with RSTACC
input.
The maximum demand for active and reactive powers are calculated for the set time interval
tEnergy
and these values are updated every minute through output channels. The active and
reactive maximum power demand values are calculated for both forward and reverse direction and
these values can be reset with RSTDMD input.
1MRK 502 066-UUS B Section 17
Metering
1105
Technical manual
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