ABB Remote I/O RIO600 Installation And Commissioning Manual page 89

1MRS757488 H
RIO600
Installation and Commissioning Manual
Function block
EMMTR
P_INST DmdWh
SupWh
Q_INST
DmdVArh
Reset Energy counter
SupVArh
GUID-67B36517-DB15-44C9-A15C-486400E6A9E5 V1 EN
Figure 45: Function block
Functionality
The energy monitoring function EMMTR is used to calculate the active and reactive
energy from the respective power inputs P and Q.
Operation principle
The operation of EMMTR can be described using a module diagram.
P
Q
Reset Energy
counter
GUID-650987B4-D6A0-4DC3-85E0-E0CDBCBFE2B6 V1 EN
Figure 46: Functional module diagram
Energy Calculation
Based on the measured powers, the linear average of the active and reactive energies
over a preset time interval of 500 ms is calculated.
The accumulated forward and reverse active energy value is available at DmdWh and
SupWh and the accumulated forward and reverse reactive energy value is available at
DmdVArh and SupVArh, respectively.
The binary signal RESET ENERGY COUNTER from external IED is used to reset the
accumulation.
Signals
Table 48: EMMTR Input signals
Name Type
P_INST REAL
Q_INST REAL
RESET ENERGY BOOLEAN
COUNTER
DmdWh
Energy
SupWh
calculation
DmdVArh
SupVArh
Default
-
-
-
Section 6
Commissioning
Description
Measured active power
Measured reactive
power
Reset of accumulated
energy reading
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