Volume Conversion Device EK260
Elster GmbH 85
Example of Modbus parameterisation:
In order to read the 9 predecimal places of the actual total volume counter under Modbus
address "101" and the current gas temperature in °C under Modbus address "309", the
parameters must be set as follows with the aid of the "WinPADS" Parameterising Software
via the optical interface:
W1 01:08C0.0 (101)
W1 01:08C1.0 (0004:0302_1)
W1 01:08C2.0 (4)
W1 02:08C0.0 (309)
W1 02:08C1.0 (0005:0210_1)
W1 02:08C2.0 (32)
3.13 Energy list
AD Designation / value Unit Access
Address
DC
W Energy kWh S 1:300 12
P Power kW - 1:310 4
WD W, disturbance quantity kWh S 1:301 12
WT W, total kWh - 1:302 15
WA W, adjustable kWh S 1:303 12
Ho.b Calorific value kWh/m3
S 10:312_1
8
SC.W Source for warning W or P - S 15:154 8
P.UW Upper warning limit for P kW K 15:158 8
P.LW Lower warning limit for P kW K 15:150 8
WMP ∆
Measurement period counter W kWh - 27:160 16
WMP max Max. meas. per. count. W current month kWh - 29:160 16
WDy ∆
Daily counter W kWh - 28:160 16
WDy max Max. daily count. W current month kWh - 30:160 16
(Legends: see page 22)
W Energy
The energy is calculated according to the following formula from the volume at
base conditions and the entered calorific value:
W = Vb ž Ho.b where Vb = Volume at base conditions (→ 3.1)
Ho.b = Calorific value (→ 3.5)
Energy is summed in the counter W as long as no alarm is present.
An alarm is present when any message "1" or "2" is urgent (→ 3.7).
P Power
Momentary power (energy per hour). P = Qb ž Ho.b
WD W, disturbance quantity
Here the energy is summed while ever an alarm is present, i.e. a message "1" or
"2" is located in any momentary status (→ 3.7).
WT W, total
Here the sum of W+ WD is always displayed. Entries for W or WD therefore also
have an effect here. No entry for WT itself can be carried out.
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