Siemens SCALANCE XB-200 Configuration Manual page 135

● Last Synchronization Time
Shows when the last time-of-day synchronization took place.
● Last Synchronization Mechanism
Shows how the last time synchronization was performed. The following methods are
possible:
– Not set
– Manual
– SNTP
– NTP
– SIMATIC
● Time Zone
In this box, enter the time zone you are using in the format "+/- HH:MM". The time zone
relates to UTC standard world time.
The time in the "Current System Time" box is adapted accordingly.
● Daylight Saving Time (DST)
Shows whether the daylight saving time changeover is active.
– active (offset +1 h)
– inactive (offset +0 h)
● SNTP Mode
Select the synchronization mode from the drop-down list. The following types of
synchronization are possible:
– Listen
– Poll
● SNTP Server Address
Enter the IP address of the SNTP server.
SCALANCE XB-200/XC-200/XP-200 Web Based Management
Configuration Manual, 07/2016, C79000-G8976-C360-04
The time was not set.
Manual time setting
Automatic time-of-day synchronization with SNTP
Automatic time-of-day synchronization with NTP
Automatic time-of-day synchronization using the SIMATIC time frame
The system time was changed to daylight saving time; in other words an hour was
added. You can see the current system time at the top right in the selection area of the
WBM.
The normal time including the time zone continues to be displayed in the "Current
System Time" box.
The current system time is not changed.
With this mode, the device is passive and receives SNTP frames that deliver the time
of day.
If you select this mode, the input boxes "SNTP Server Address", "SNTP Server Port
and "Poll Interval[s]" are displayed to allow further configuration. With this type of
synchronization, the device is active and sends a time query to the SNTP server.
Configuring with Web Based Management
5.4 The "System" menu
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