Siemens SIMATIC NET SCALANCE S615 Configuration Manual page 92

Configuring with Web Based Management
4.4 "System" menu
– NTP
– SIMATIC
– PTP
● Time Zone
Enter the time zone you are using in the format "+/- HH:MM". The time zone relates to
UTC standard world time. Settings for daylight-saving and standard time are taken into
account in this box by specifying the time offset.
● SNTP Mode
Select the synchronization mode from the drop-down list. The following types of
synchronization are possible:
– Poll
– Listen
● SNTP Server IP Address
Enter the IP address of the SNTP server.
● SNTP Server Port
Enter the port of the SNTP server.
The following ports are possible:
– 123 (standard port)
– 1025 to 36564
● Poll Interval(s)
Enter the interval between two-time queries. In this box, you enter the query interval in
seconds. Possible values are 16 to 16284 seconds.
Procedure
1. Click the "SNTP Client" check box to enable the automatic time setting.
2. In the "Time Zone" input box, enter the local time difference to world time (UTC). The
input format is "+/-HH:MM" (for example +02:00 for CEST), because the SNTP server
always sends the UTC time. This time is then recalculated and displayed as the local time
based on the specified time zone. On the device itself, there is no changeover from the
daylight saving to standard time. You also need to take this into account when completing
the "Time Zone" input box.
92
Automatic time-of-day synchronization with NTP
Automatic time-of-day synchronization using the SIMATIC time frame
Automatic time-of-day synchronization with PTP
If you select this protocol type, the input boxes "SNTP Server IP Address", "SNTP
Server Port" and "Poll Interval(s)" are displayed for further configuration. With this type
of synchronization, the device is active and sends a time query to the SNTP server.
With this type of synchronization, the device is passive and "listens" for SNTP frames
that deliver the time of day.
SCALANCE S615 Web Based Management
Configuration Manual, 05/2015, C79000-G8976-C388-02