Art. No. SC 1000 KNX
If the basic setpoint has been modified, we have to distinguish between two cases that are set
by the parameter "Apply change to basic temperature setpoint permanently"...
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Case 1: The basic setpoint adjustment is permanently accepted ("Yes" setting):
If, with this setting, the basic temperature setpoint is adjusted, the controller saves the
value permanently to the EEPROM. The newly adjusted value will overwrite the basic
temperature originally configured via the ETS after a reset! This is the only way to keep the
adjusted basic setpoint even after change-over of the operating mode or after a reset.
With this setting, it should be noted that frequent changing of the basic temperature (e.g.
several times a day) can affect the product life of the device as the non-volatile storage
(EEPROM) is designed for less frequent write access. A previously saved basic setpoint
remains active after the return of bus voltage, providing that the device was not
programmed by the ETS.
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Case 2: The basic setpoint adjustment is only temporarily accepted ("No" setting):
The basic setpoint, which was received via the object, stays only temporarily active in the
current operating mode. In the case of a bus voltage failure or following a change-over to
another operating mode (e.g. Comfort followed by Standby), the basic setpoint received via
the object will be discarded and replaced by the value which was originally configured in
the ETS.
Basic setpoint shift
In addition to the setting of individual temperature setpoints via the ETS or via a basic setpoint,
the user is able to shift the basic setpoint within a specific range via the basic setpoint object
with the channel or "setpoint shift, internal" push-button function. During each operation, the
basic setpoint is shifted upwards or downwards by one level (depending on the button operation
and parameterisation). An adjustment by up to 4 steps is possible in this way. The value of a
level corresponds to 0.5 K. Consequently, the setpoint temperature value can be shifted within
the range -2 K...0...+2 K. The adjusted temperature value is instantly accepted as the new
setpoint during operation.
i
It has to be considered that a shift of the displayed setpoint temperature (temperature
offset of the basic temperature) will directly affect the basic setpoint and as a result shift all
other temperature setpoints.
A positive shift is possible up to the configured heat protection temperature. A negative
shift is possible up to the set frost protection temperature.
Whether a basic setpoint shifting only affects the currently active operating mode or whether it
influences all other set-temperatures of the remaining operating modes is determined by the
"Accept modification of shift of basic setpoint value permanently" parameter in the "Room
temperature control -> Controller general -> Setpoints" parameter page...
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"No" setting:
The basic setpoint shifting carried out is in effect for only as long as the operating mode or
heating/cooling mode has not changed or the basic setpoint is maintained. Otherwise the
setpoint shift will be reset to "0".
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"Yes" setting:
In general, the shifting of the basic setpoint carried out affects all operating modes. The
shifting is maintained even after change-over of the operating mode or the heating/cooling
mode or readjusting the basic setpoint.
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Software "Smart Control 501511"
Functional description
