10
-
enable primary and differential counters
If
enable primary counter
is selected, the
“Consumed energy counter format”
,
“Consumed energy
primary counter init value”
,
“Reinitialize consumed energy counters”
, and
“Consumed energy primary
counter sending condition”
parameters are displayed, along with the
Consumed active energy primary
counter
communication object.
If
enable primary and differential counters
is selected, not only the parameters/communication objects listed
previously (in relation to the primary counter) are displayed but also the
“Consumed energy differential
counter overflow value”
,
“Start/stop consumed energy differential counter from bus”
,
and
“Consumed
energy differential counter sending condition”
parameters and the
Consumed active energy differential
counter
communication object.
5.1.4 Consumed energy counter format
The capacity of the primary and differential counters used for the energy count must be sufficient to measure
the energy in KNX coding in kWh (maximum value = 2147483647 kWh). The
“Consumed energy counter
format”
parameter defines the dimension and coding of the communication object used to transmit the value
of the primary and differential counters (if enabled). The values that can be set are:
-
watthour (Wh)
(default value)
-
kilowatthour (kWh)
The value set for this item will define the format of the
Consumed active energy primary counter
and
Consumed active energy differential counter
objects, and the values that can be set for the
“Consumed
energy primary counter init value”
and
“Consumed energy differential counter overflow value”
parameters.
5.1.5 Consumed energy primary counter init value
The
“Consumed energy primary counter init value”
parameter is used to set the initial value of the primary
energy counter; when the primary counter is in overflow (i.e. it reaches its maximum value), the count is
stopped but can be reinitialised using the relative BUS command on the object.
Depending on the value set for the
“Consumed energy counter format”
parameter, the values that can be
set for this item will be different:
If the format is
watthour (Wh)
, the format (Data Point Type) of the
Consumed active energy primary
counter
communication object is 13.010 DPT_ActiveEnergy, and the values that can be set for the
parameter
are:
-
from
0 (default value)
to 2147483647 watthour, in steps of 1
If the format is
kilowatthour (kWh)
, the format (Data Point Type) of the
Consumed active energy
primary counter
communication object is 13.013 DPT_ActiveEnergy_kWh, and the values that can be
set for the parameter are:
-
from
0 (default value)
to 2147483647 kilowatthour, in steps of 1
The device can use the
Reset consumed active energy primary counter
(Data Point Type: 1.015
DPT_Reset) communication object, the device can receive the primary counter reinitialisation commands that
bring the counter back to the value set for the
“Consumed energy primary counter init value”
item; a value
of “0” is ignored, whereas when the value “1” is received, the primary counter is reset at the initial value and
the
Overflow consumed active energy primary counter
object is set at “0”.
Via the
Overflow consumed active energy primary counter
(Data Point Type: 1.002 DPT_Bool)
object, the
device indicates the overflow of the primary counter. When an overflow occurs, a value of “1” is sent; a value
of “0” is sent when the counter is reinitialised.
