Local Control Of Room Operating Mode With A Room Unit - Siemens Desigo RXB Technical Manual

Room unit
Effective room operating
mode
Existing Effective
room op. mode
Comfort
Precomfort
Economy
Protection
Siemens
Building Technologies
5.5.5

Local control of room operating mode with a room unit

Local
Central (ACS)
Controller
Prio
Central
0.
(Synco controller)
1.
DI
1.
2.
3.
3.
DI
3.
PPS2
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 operation in the room, dependent on priority 1, 2 and 3
influences. The Effective room operating mode is Precomfort,
Economy, or Protection.
• The change in the Effective room operating mode is event-driven at the moment
when the button on the room unit is pressed.
• The Effective occupancy can cause the Effective room operating mode to change
again last command wins.
The table below shows the effect of the
mode of the room controller.
Room unit
display
Auto
Key: Auto means: "changes to Auto ".
1) Comfort mode is active for the predefined Temporary Comfort period (see page
103). The room controller then returns to Economy.
RXB (KNX) Applications library
Room operating modes
The /Auto button on the room unit can be used like a
presence button.
The room user can enable or disable HVAC control.
/Auto button on the Effective room operating
Manual operation of
/Auto button
Auto
Auto
Auto
CLC and RAD description of functions for CC-02 CM110384en_03
New Effective room
operating mode
Precomfort
if room operating mode from
schedule
= Comfort or Precomfort.
Economy
if room operating mode from
schedule
= Economy.
Comfort.
Comfort for Temporary
1)
Comfort period .
Protection, unchanged.
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