9 Visualization
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ETOS
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Synchronization interval
You can use this parameter to set the interval at which the device is to call
up the time from the time server.
Automatic daylight saving / standard time
You can use this parameter to activate the automatic switchover between
daylight saving time and standard time. Depending on the time zone (region)
set, the device switches automatically between daylight saving time and
standard time on the specified days.
Time zone
If the time information is transmitted to the device by a network service
(SNTP or SCADA), this time is transferred depending on the set reference
time. To adjust the device time to your local time, you can use the time shift
parameter to set the time shift to UTC.
Example:
Region
Time shift to UTC
Mumbai, India
UTC +5:30 h
Beijing, China
UTC +8:00 h
Brasilia, Brazil
UTC -3:00 h
Table 23: Time shift to UTC (Coordinated Universal Time)
Activate second time server (optional)
As an option, you can use a second time server, e.g. as a backup should the
first one fail. When you activate the second time server, the device synchro-
nizes the time with the second time server if a connection cannot be estab-
lished with the first time server. If the device is able to re-establish the con-
nection to the first time server, it automatically synchronizes the time with the
first time server again.
You can only use the second time server if you have activated the
Time
synchronization via SNTP
parameter and entered an
IP address
for the
first time server.
SNTP time server 2 (optional)
You can use this parameter to enter the IP address of the second time
server (optional).
9.5.1 Time synchronization via PTP
You can use this parameter to activate time synchronization via a PTP time
server.
