Local Setpoint Shift - Siemens Desigo RXB Technical Manual

Technical manual
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Siemens
Building Technologies
In a building automation and control system, the central setpoint shift can be controlled
via the following S-mode communication objects (triplets):
Setpoint shift heating (input communication object)
Setpoint shift cooling (input communication object)
Flags
Type
R W C T U
0 1 1 0 0 222.101
DPT_TempRoomSetp
SetShiftF16[3]
in LTE-mode, the central setpoint shift is transmitted via the following communication
objects (triplets):
Setpoint shift heating (input)
Setpoint shift cooling (input)
TempRoomSetpSetHeatShift
TempRoomSetpSetCoolShift
Geographical zone
6.5

Local setpoint shift

If setpoints are shifted locally and corrected by the controller, local shift is applied.
Two methods are available for local setpoint shift:
– Using a series QAX... room unit (local PPS bus) providing a rotary button or rocker
switch to adjust the room temperature setpoint
– or via EIB/KNX bus.
If multiple sources command local setpoint shift, "last one wins" applies.
The S-mode communication object is used for setpoint shift via the EIB/KNX bus:
Setpoint offset (input communication object)
Flags
Type
R W C T U
0 1 1 0 0 9.002
DPT_Value_Tempd
The following communication object is used in LTE-mode:
Setpoint offset (input)
TempRoomSetpUserOffset
Geographical zone
RXB (KNX) Applications library
Setpoint calculation
Receive timeout
Yes
Possible partner
function blocks)
115 HVACOPT
HVAC Optimizer
Receive timeout
No
Possible partner
function blocks)
384 UHRS
User HVAC
Room settings
CLC and RAD description of functions for CC-02 CM110384en_03
States
3 floating point values
– Comfort (K)
– Precomfort (K)
– Economy (K)
Known partner devices
Siemens:
Synco RMB795
Value
Floating point (K)
Known partner devices
Siemens:
Synco QAW740
28 Feb 2009

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Desigo rxc, desigo rxb, desigo rxl, desigo rxa

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