The NEW_VAL signal is a pulse signal. The signal is set if the counter value was
updated since last report.
Note, the pulse is short, one cycle.
The SCAL_VAL signal consists of scaled value (according to parameter Scale), time
and status information.
17.1.8 Technical data
Table 714: 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
17.2.1 Identification
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
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
1MRK502052-UEN B Section 17
Metering
985
Technical manual
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