Siemens SIMATIC NET SCALANCE SC-600 Configuration Manual page 187

• Last Synchronization Mechanism
Shows how the last time synchronization was performed. The following types 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
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 are
possible:
– Poll
– Listen
SCALANCE SC-600 Web Based Management (WBM)
Configuration Manual, 10/2021, C79000-G8976-C475-03
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 set time continues to be displayed in the "System Time" box.
The current system time is not changed.
If you select this mode, the text 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.
In this mode, IPv4 and IPv6 addresses are supported.
With this type of synchronization, the device is passive and receives SNTP frames
that deliver the time of day. The settings in the text boxes "SNTP Server Address"
and "SNTP Server Port" have no effect in this mode.
In this mode, IPv4 and IPv6 addresses are supported.
Note
SNTP Client in Listen mode and NTP Server cannot be enabled at the same time.
Configuring with Web Based Management
4.4 "System" menu
187