ABB i-bus KNX Product Manual page 16

ABB i-bus KNX
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
Commissioning
If an ON message is received by multiple objects, Freezing/Heat Protection
has a higher priority than Comfort Mode. Night reduction has a higher
priority than Comfort Mode.
When switching operating mode via 1 byte two 1-byte communication
objects are available.
Note: the two 1-byte communication objects have different behaviour when
receiving a message. One object evaluates received messages "normally".
This means, for example, if a comfort telegram is received, the room
thermostat switches to comfort mode. If a night telegram is received, the
ambient temperature controller switches to night mode. This object is
controlled, for example, by time switches.
The second object can "overwrite" the first object temporarily. This means,
for example, if a Freezing/Heat Protection telegram is received, the ambient
temperature controller switches to Freezing or Heat Protection mode.
If freezing or heat protection is reset by another message, the ambient
temperature controller activates the operating mode pending at the "normal"
object. As a result, it is capable of noting operating modes.
The following applies to the 1-byte communication object:
0 = Auto
1 = Comfort
2 = Standby
3 = Night
4 = Freezing/Heat Protection
5 – 255 = not allowed
Enable switchover of comfort/standby via button On/Off
Options: Yes
No
Use this parameter to enable switching between operating modes with the
ON/OFF switch. If "No", ... is set here, the push-switch is used for switching
the device on and off by pushing and holding (500 ms), if "Yes" is set, the
operating mode can be switched from Comfort to Standby and vice versa
by pushing and releasing the push-switch and the device is switched off by
pushing and holding it (> 500ms). If the device is switched off and switched
on with the ON/OFF push-switch, Comfort mode is set.
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