Siemens Desigo RXB, Technical Manual, Page: 277 / 476

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Siemens RXB (KNX) application library FNC Description of functions for FC-10, FC-11, FC-12 CM110385en_05
Building Technologies Room operating modes 28 Feb 2009
Effective occupancy (Output communication object)
Flags
R W C T U
Type Send hearbeat States
1 0 1 1 0 20.003
DPT_OccMode
Yes 0 = Occupied
1 = Standby
2 = Unoccupied
5.3.4 Central control of room operating mode via
the
Room operating mode time schedule
This type of time schedule is not supported in DESIGO. If it is nevertheless used, this
can cause room controller errors.
5.3.5 Local control of room operating mode with a room unit
Room unit
S
Central Local
1.
2.
3.
S
DI
S
S
S
DI
S
3.
Controller
Prio
PPS2
3.
S
The /Auto button on the room unit can be used like
an occupancy button.
The room user can use it to decrease or increase the
room temperature control.
The room unit is connected to the PPS2 interface on the room controller.
It displays the effective room operating mode in a simplified form, and can also be used
to change it:
State Description
Auto Effective room operating mode is Comfort
Reduced mode in the room, depending on the Priority 1, 2 and 3
influences:
The
effective room operating mode is Precomfort, Economy or
Protection. (3rd priority: "last one wins ").
•
The effective room operating mode can be changed via the room unit only during the
building-in-use period (defined by the Use time schedule)
•
The change in the effective room operating mode is event-driven, the key factor
being the moment when the button on the room unit is pressed.
•
The Effective occupancy or Temporary Comfort mode (both Priority 3) can cause the
effective room operating mode to change again Æ the last command always applies.
Effective
room operating mode