ABB i-bus KNX Product Manual page 44

On the left is the basic set value which has been specified via object 0 or set on the
setting wheel.
On the right is the current set value, i.e. the value to which the room temperature is
effectively controlled.
As shown on the block diagram, the current set value depends on the operating
mode (5) and on the control function selected (4).
The basic set value limits (2) prevent an incorrect basic set value specification to
object 0. These are the following parameters:
•
minimum valid basic set value
•
maximum valid basic set value
•
minimum setting on the setting wheel
•
maximum setting on the setting wheel
If the set value is outside the parameterised values for frost and heat protection due
to a set value shift, it is limited to these values via the safety limits (11).
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