Siemens SIMATIC LOGO! CMR2020 Operating Instructions Manual page 59

You have three possible time-of-day synchronization methods available:
● NTP (time server)
If you set time-of-day synchronization using NTP, select the "Activate data connection via
the mobile wireless network" (Page 80) check box.
● GPS
● GSM/LTE mobile wireless network
Check whether your mobile wireless provider supports this function.
If you click the "Apply" button, the settings you have made for the local time zone and time-
of-day synchronization are adopted.
Local time zone
● You select the time zone to match your location from the drop-down list.
● You can also set the local time zone manually.
If you click the "Apply" button, the settings you have made for the local time zone are
adopted.
Automatic daylight saving time switchover
You can only change the date and time for the time-of-day switchover using "Manual
setting".
● If you select the "Automatic daylight saving time switchover" check box, the daylight
saving time switchover is performed automatically.
● In the drop-down lists, you select the valid dates and times for the time switchover.
The settings are fixed for the UTC time zones and cannot be changed.
LOGO! CMR2020 / LOGO! CMR2040
Operating Instructions, 09/2014, C79000-G8976-C356-01
Configuration
6.4 System
59