Time synchronization
In this screen you set where and when the HomeServer is synchronized, and which
time standard is to be used.

Furthermore, the HomeServer can send the date and time to the EIB.

If there is a connection to the internet then the timers can be synchronized daily with a time constant (similar to DCF-77).
The date and time are thereby set.
We recommend when using this option that you use an internet provider that invoices in one-second pulse rate.

The HomeServer automatically adjusts for summer and winter time.
A connection to an NTP server is not required!

Automatic adjustment to winter time is only made when the HomeServer is switched on on the last Sunday in October continuously
from 01:59 to 03:01!

Central European Summer Time begins on the last Sunday in March at 2 o'clock in the morning CET.
When summer time begins, the clock is moved forward from 2 o'clock to 3 o'clock.
Central European Summer Time ends on the last Sunday in October at 3 o'clock in the morning CET.
When summer time ends, the clock is moved back from 3 o'clock to 2 o'clock.
The time between 2 o'clock and 3 o'clock is therefore shown twice.

Automatic adjustment to winter time is only made when the HomeServer is switched on on the last Sunday in October continuously
from 01:59 to 03:01!

If the following options for time synchronization are not available,
then there is a screen for setting the Date and time of the HomeServer.
This can be created in the HomeServer menu and can be changed by the user.
Synchronize the HomeServer with the NTP server
Yes: The date and time of the HomeServer is set via a time server in the internet.

ATTENTION: If this option is selected then the time server is queried daily;
connection costs may be incurred depending on the internet provider set!!!

NTP: Network Time Protocol
Synchronization time (hh:mm)
The time standard is queried in the internet every day at this time and set in the HomeServer.
Grace period (in secs)
Time in seconds;
The current time of the HomeServer is only adjusted if the deviation between the time of the HomeServer and the time of the Time Server is greater than the grace period
NTP servers
These servers are used for synchronizing. If a server can not be reached then the
alternative NTP server is used.
Please observe the error times used if the server can not be reached!

The following list of time servers has been tested with HomeServer 2.
Please observe that time servers are sometimes temporarily unavailable.
If possible, enter the names of at least 2 different time servers in this screen.
No guarantee is accepted for the correctness of these addresses!


The time servers return the current time as GMT +1

ntp-1.uni-marburg.de
ntp-2.uni-marburg.de
ntps1-0.uni-erlangen.de
sun3.urz.uni-heidelberg.de
aixfile1.urz.uni-heidelberg.de
aixfile2.urz.uni-heidelberg.de
ts1.univie.ac.at
ts2.univie.ac.at
ntps1-1.cs.tu-berlin.de
ptbtime1.ptb.de
ptbtime2.ptb.de
time.ien.it
Alternative NTP servers
Refer to NTP servers
Connect to internet
Yes: The HomeServer connects to the internet, if there is no existing connection to the internet at the time of the synchronization.
Receive date/time from EIB
Yes: The HomeServer can be synchronized by a clock, e.g. DCF 77.
Communication object for date
The date is received from this communication object.
3-byte EIB data format
Communication object for time
The time is received from this communication object.
3-byte EIB data format
Max difference in reception (in seconds)
In the EIB, the date and time are comprised of two telegrams.
The current time of the HomeServer is only adjusted if the difference between both EIB telegrams remains below this maximum time.
Grace period (in secs)
The current time of the HomeServer is only adjusted if the deviation between the time of the HomeServer and the time of the Time Server is greater than the grace period
Send time to EIB
Yes: The HomeServer can send the date and time to the EIB in cycles.
All devices that can understand the 3-byte EIB data format are thereby synchronized.
The day of the week is also sent with the date.
Communication object for date
The date is sent to this communication object.

3-byte EIB data format
Communication object for time
The time is sent to this communication object.

3-byte EIB data format
Refresh
The data are sent to the EIB at this interval.

The
Send time/date command is also available.