ABB i-bus KNX Product Manual page 29

5.2 D etermining the current operating mode
1 6 B
The c urrent set value
H U
the operating mode.
The operating mode can be set via objects 3..5.
There are two ways of doing this:
5.2.1 N ew operating modes
3 5 B
If New... has been selected on the operating type parameter page for the Setting the
operating mode parameter, the current operating mode can be specified as follows:
Operating mode
selection
Object 3
any
any
Comfort
Standby
Night
Frost/heat
protection
Typical application:
A time switch is used to activate the Standby or Comfort operating mode in the
morning and the Night operating in the evening via object 3.
During holiday periods, another channel on the frost/heat protection time switch is
also selected via object 3.
Object 4 is connected to a presence watchdog. When presence is deteced,
RTF/A 1.1 switches to the Comfort operating mode (see table).
Object 5 is connected to a window contact via the bus (binary input).
When a window is opened, RTF/A 1.1 changes to the frost protection operating
mode.
Frost
protection
Night
Standby
Comfort
Comfort
Frost
protection
can be be adjusted for the relevant requirements by selecting
U H
Presence
Object 4
any
1
0
0
0
0
Presence
0
1
Window status
Object 5
1
0
0
0
0
0
Window
Current
0
operating mode
1
current operating
mode
(Object 6)
Frost/heat
protection
Comfort
Comfort
Standby
Night
Frost/heat
protection
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