Room Group 1 - Siemens RMB795B Basic Documentation

"Clock time operation"
operating line
Operating line "Remote
setting clock slave"
"Remote reset of fault
"operating line
Geographical zone
(apartm.)
Setting values
Fault status message
Room units with
communication
Setting values
"Holidays / special
days" menu item
Siemens
Building Technologies
If the system uses a common time of day, one of the devices must be defined as
the master, all the other devices are slaves.
Using "Remote setting clock slave = Yes", the time of day can be adjusted at the
respective slave. This is then sent to the master, which passes it on to all the other
devices.
When set to "Autonomous", the neither sends nor receives the clock time.
The function "Remote setting clock slave" allows the user to set the time and date
at the clock time slave. The new values are then sent to the clock time master via
the KNX bus. The master sends the new time to all bus members. Hence, for the
operator, operation is the same as on the time-of-day master.
All fault status messages can be acknowledged from a remote location (e.g. from
the CI700.1 service tool).

13.2.2 Room group 1...10

A "Geographical zone (apartment)" combines buildings or building sections from an
operational point of view that must satisfy the following criteria:
• Same room operating mode
• Same room temperature (setpoint)
By definition, the address of a geographical zone is made up as follows:
Apartment.Room.Subzone
With the room groups, it is only the apartment number that needs to be set. Room
and subzone use a fixed setting (=1).
Main menu > Commissioning > Communication > Room group 1...10 >
Operating line
Geographical zone
(apartm.)
If the same geographic zone (apartment) is set for two room groups, a fault status
message ">1 time switch in room group x" is triggered.
A zone can be defined via "QAW operation zone (Apartm)" in which a QAW740
room unit can communicate with a room group. It is then possible via this zone to
preselect from the QAW740 the room operating mode and the setpoint
readjustment of a group.
Main menu > Commissioning > Communication > Room group 1...10 >
Operating line
QAW zone (Apart.)
Only 1 QAW740 room unit per room group can be defined.
For details, see Sec. 8.3.6 "Holidays/special days".
Central control unit RMB795B
Communication
Range
1...126
Range
1...126
Factory setting
Room group 1 = 1
Room group 2 = 2
...
Room group 10 = 10
Factory setting
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CE1P3122en
18.01.2012