Functions
WE Configuration
Meter bus 0
255
1434
24h
CO6 -> F10 - 1
Meter bus address WMZ 1 to 6 (ST.-NR) / 0 to 255
Model code WMZ 1 to 6 / 1434, CAL3, APAtO, SLS
Reading mode WMZ 1 to 6 / 24h, CONT, CoiL
Tariff function option HT/NT, only selectable for
WMZ1 on setting “1434” and “CONT”:
tAr-A: Function not active
tAr-E: Depending on the following programmable time
schedule, the consumption data are assigned to a high
tariff or a low tariff. Three time periods can be entered
per day of the week (not vacations or public holidays):
1–7 daily, 1 = Monday, 2 = Tuesday, ..., 7 = Sunday
9.4.2 Flow rate/capacity limitation using meter bus
Similar to the flow rate limitation based on a standardized 0/4 to 20 mA signal, the refresh-
ing rate of the measured variable (flow rate and/or capacity) in meter bus mode must be
smaller than 5 seconds to ensure that the limitation can be performed properly. Technical
documentation TV-SK 6311 lists the heat meters which comply with this criterion and, thus,
can be used for limitation. Note that some makes, particularly battery-operated heat meters,
respond with communication pauses when they are read too frequently. Others might run out
of energy early. For details, refer to TV-SK 6311.
4
A system with simultaneous room and DHW heating requires max. energy.
4
A system with a fully charged storage tank that performs only room heating requires less
energy.
4
A system that suspends room heating during DHW heating requires less energy.
As a result, three different maximum limit values can be adjusted:
4
Max. limit value
to determine the absolute upper limit
4
Max. limit value for heating
to operate only the room heating
4
Max. limit value for DHW
to operate only the DHW heating
In all systems without DHW heating or without heating circuit, only the
Max. limit value
for
the flow rate or capacity can be specified. In systems Anl 10.x, 11.x, 12.x, 13.x, 21.x and
25.x, the heating circuit Rk1/Y1 is turned down in case of limitation.
Flow rate limitation
The necessary function block parameters to set up flow rate limitation are available in
CO6 -> F11. One after the other, the systems's
Max. limit value
and – for systems which con-
124 EB 5579 EN
Communication
To Next Page
Loading...
