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24
Parameter settings
Interface KNX B8-TH
• Version: 24.08.2016 • Technical changes and errors excepted.
For an adequate regulation of the indoor temperature, comfort, standby, eco and build-
ing protection modes may be used.
Comfort
when present,
Standby
when absent,
Eco
as a night-time mode and
Frost / heat protection
(building protection) e.g. when the window is open.
The settings for the temperature control include the set point temperatures for the in-
dividual modes. Objects are used to determine which mode is to be selected. A change
of mode may be triggered manually or automatically (e.g. by a timer, window contact).
The
mode
may be switched with
two 8 bit objects
of different priority. Objects
„... HVAC mode (Prio 2)“ for switching in everyday operation and
„... HVAC mode (Prio 1)“ for central switching with higher priority.
The objects are coded as follows:
0 = Auto
1 = Comfort
2 = Standby
3 = Eco
4 = Building protection
Alternatively, you can use
three objects
, with one object switching between eco and
standby mode and the two others are used to activate comfort mode or frost/heat pro-
tection mode. The comfort object then blocks the eco/standby object, and frost/heat
protection objects have the highest priority. Objects
„... Mode (1: Eco, 0: Standby)“,
„... comfort activation mode" and
„... frost/heat protection activation mode"
Select the
mode to be activated after reset
(e.g. power failure, reset of the line via
the bus). (Default).
Then configure a temperature control
block
by the blocking object.
Specify when the current
control variables
are to be
sent
to the bus. Periodic trans-
mission is safer if a message does not reach a recipient. You may also set up periodical
monitoring by the actuator with this setting.
Switch mode via
• two 8-bit objects (HVAC modes)
• three 1-bit objects
Mode after reset
• Comfort
• Standby
• Eco
• Building protection
Behaviour of the blocking object with value
• 1 = Block | 0 = release
• 0 = block | 1 = release
Value of the blocking object after reset
0 • 1
Transmit control variable
• on change
• on change and periodically
from change of (in % absolute)
1...10; 2