Application Example, Setpoint Priority, Setpoint Master - Siemens RMB795B Basic Documentation

Impact on the
setting values
Setting values
70 / 144
Siemens
Building Technologies
The values can be influenced as follows:
• Per room group by summer / winter compensation (refer to the following
subsection)
• Individually on each RXB/RXL room controller by a QAX room unit, see
functional description of RXB/RXL (Technical Handbook CA2A3899en)
• The absolute heating/cooling setpoints can be changed individually on each
room controller. It can be influenced accordingly with the setting setpoint priority.
Main menu > Commissioning > Settings > ... or
Main menu > Settings > Room group 1...10 > Room temp. setpoint >
Operating line
Setpoint master
Range Description
Always RMB795B is the setpoint master. The absolute setpoints set
locally on the room controller are always overwritten again.
Not in Comfort The absolute setpoints can be overwritten locally on the
mode room controller during Comfort operating mode.
The RMB795B is the setpoint master for all other room
operating modes. The absolute setpoints set locally on the
room controller are always overwritten again.
Only when The user can normally change the absolute setpoints on the
changed room controller at any time. The setpoints are overwritten on
the room controller, however, when the setpoints are
changed on the central control unit.
8.4.2

Application example, setpoint priority, setpoint master

Types of Setpoint
building priority
Business,
manufacturing yes
building
Office, school yes
Hospital, hotel yes
Villa no
Central control unit RMB795B
Function block: "Room group"
Range
Always, Not in Comfort
mode, Only when changed
Setpoint Description of absolute setpoints
master
Setpoints cannot be adjusted in the room,
but rather only by the central control unit
RMB795B.
Always
Setpoints adjusted in the room are reset
after a max. of 15 min to the basis setpoints
for the RMB795B.
The setpoints can be adjusted in any manner
in the individual room during the Comfort
phase. They are reset to the basis setpoints
Not in
for the RMB, however, as soon as the RMB
Comfort
operating mode changes to Pcf, Eco.
mode
During the Economy phase, the setpoints
cannot be adjusted, or they are automatically
reset after a max. of 15 min.
Setpoints can always be adjusted in the
Only room, but are overwritten only when the
when setpoints are changed by the central control
changed unit RMB795B (e.g. via WEB by the facility
manager).
The setpoints can be freely adjusted in each
n/a
room.
Factory setting
Not in Comfort mode
CE1P3122en
18.01.2012