System Time, Alarms And Remote Time Adjustments - Siemens Synco 700 Series Basic Documentation

System time
Alarms and remote
time adjustments
Two-way and one-way
communication
Normal (route)
Route all
Block all
Time synchronization
Building Technologies
HVAC Products
8.2.5

System time, alarms and remote time adjustments

The system time (time and date) are communicated in S-mode and are not affected
by LTE filtering.
Alarms and remote time adjustments are transmitted in LTE mode (LTE broadcast
address). This address is in the predefined LTE filter table and is 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, then
alarms and remote time adjustments are transmitted only from the secondary line
to the primary line one-way communication.
If the setting is "Route all", then alarms and remote time adjustments are
transmitted from the secondary line to the primary line and vice versa
communication.
The "Block all" setting means that the transmission of alarms and remote time
adjustments is blocked
In a network containing couplers and IP routers, only one RM... controller can
operate as the 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 line above it in the hierarchy.
Basic documentation: Communication via the KNX bus
Large plants
LTE filter table
no LTE telegram communications.
two-way communication.
two-way
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