Heating / Cooling - ABB i-bus KNX Product Manual

ABB i-bus KNX
3.3.5

Heating / cooling

© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
Commissioning
No. Function
24 Control value heating
1 channel (2-pipe system)
This data item forms the 1-byte or 1-bit KNX object and can be sent only. This object is
the control value for heating and cooling. In fan coil systems with only one output channel
it is the "heating/cooling" object in which the internal allocation is controlled by the external
operating mode switching (see index 6).
When acting as a branch the control value is received via this object.
30 Heat/Cool switchover
This data item forms the 1-bit KNX object. It can be received and sent. If the RTR switches
the operating mode, the object is sent if the corresponding parameter has been set to
"automatic and send". In the event of external switching the operating mode is switched by
a different bus device (such as a fan coil 2-line system). After the switching a separate output
object or the same output object can be used (depending on the number of output channels
with "heating and cooling").
0: cooling
1: heating
Object name Data type
Control value 1 byte /
1 bit
Heat/Cool 1 Bit EIS1
DPT 1.001
Flags
K, Ü, L
K, S, Ü,
L
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