System Time, Alarms, And Remote Time Adjustment - Siemens RXB Series Basic Documentation

System time
Alarms and remote time
adjustment
Two-way and one-way
communication
Normal (route)
Route all
Block all
Time synchronization
For internal use only
Siemens
Building Technologies
8.2.5

System time, alarms, and remote time adjustment

The system time (time and date) is communicated in S-Mode and not affected by
LTE filtering.
Alarms and remote time adjustments are transmitted in LTE-Mode (LTE broadcast
address). This address is listed in the predefined LTE filter table and therefore
subject to LTE filtering.
Primary line
(e.g. Main line 1)
N146
N140/13
Sekundary line
(e.g. Line 1)
The diagram shows the following:
The system time (time and date) is always transmitted by devices on the primary
line to devices on the secondary line and vice versa
If the filter is set to "Normal (route)" in the area/line couplers and IP routers, alarms
and remote time adjustments are transmitted only from the secondary line to the
primary line one-way communication.
If "Route all" is set, alarms and remote time adjustments are transmitted from the
secondary line to the primary line and vice versa
"Block all" means that the transmission of alarms and remote time adjustments is
blocked no LTE telegram communications.
In a network with couplers and IP routers, only one RM... controller can function as
time master (see Section 6.1.2).
The time can only be adjusted remotely via a time slave if the time master is
located on the same line or on the next higher line.
KNX bus communications
Large plants
LTE filter table
two-way communication.
two-way communication.
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CE1P3127en
2013-04-08