Siemens SCALANCE XM-400 Configuration Manual page 203
Industrial ethernet switches
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Also See for SCALANCE XM-400:
- Configuration manual (960 pages) ,
- Operating instructions manual (80 pages) ,
- Instructions manual (60 pages)
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● Last Synchronization Mechanism
Shows how the last time synchronization was performed. The following methods are
possible:
– Not set
– Manual
– SNTP
– NTP
– SIMATIC
– PTP
● 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
● Poll Interval[s]
Here, enter the interval between two-time queries. In this box, you enter the query interval
in seconds. Possible values are 16 to 16284 seconds.
SCALANCE XM-400/XR-500 Web Based Management (WBM)
Configuration Manual, 05/2017, C79000-G8976-C248-12
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
Automatic time-of-day synchronization with PTP
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. Settings in the input boxes "SNTP Server Address" and "SNTP Server Port"
have no effect in this mode.
In this mode, only IPv4 addresses are supported.
If you select this mode, the input box "Poll Interval[s]" is displayed to allow further
configuration. In this mode the settings in the input boxes "SNTP Server Address" and
"SNTP Server Port" are taken into account. With this type of synchronization, the device
is active and sends a time query to the SNTP server.
In this mode, IPv4 and IPv6 addresses are supported.
Configuring with Web Based Management
5.4 The "System" menu
203
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