Operating Instructions

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Siemens RXB (KNX) application library RXB Description of functions for FC-10, FC-11, FC-12, FC-13 CM110385en_08
Building Technologies Room operating modes 2013-06-17
5.5 Determine the room operating mode with
Synco (LTE mode)
In LTE-mode the effective room operating mode of the room controller depends on the
central Room operating mode time schedule and/or on local influences such as window
contacts, presence detectors or room units.
The diagram below shows how these influences are processed by the room controller,
and their priority:
PPS2
Central Local
1.
2.
3.
DI
LTE
DI
3.
Controller
1.
3.
Enable Comfort
LTE
Prio
10385Z57en
Central (ACS)
0.
(Synco controller)
Window contact
Presence detector
Room unit
Protection
Room operating
mode
If the room operating mode in the ACS (operating booklet) is AUTO, the priorities
1 to 3 apply.
If the room operating mode in the ACS (operating booklet) is Comfort, Precomfort,
Economy or Protection, these modes have absolute priority ("Prio 0").
The effects of Priority 1 and Priority 2 are similar in nature to states, which apply
continuously
The Priority 3 influences are treated as events.
The key factor is the moment at which the state changes (trigger edge).
If the mode is later changed by another source of priority 3, the last change
applies.
STOP
Note!