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Configuration
4.11 Maintenance
Parameters for the NTP (secure) method
● Key ID
Key ID of the NTP server. Numeric value.
Range of values: 1..65534
● Hash algorithm
Select alternatively:
– SHA-1
– MD5
● Key format
Specify the format in which you enter the key:
– ASCII
– HEX (hexadecimal)
● Key
Enter the NTP key in the selected format.
Permitted key length:
– ASCII: 5..20
– Hexadecimal: 10-40
● Time zone
In NTP mode, it is generally UTC (Universal Time Coordinated) that is transferred. This
corresponds to GMT (Greenwich Mean Time).
The time offset from UTC can be set by configuring the local time zone.
Manual setting of date and time
The input boxes for date and time are only active with disabled time-of-day synchronization
via NTP.
To set the time, use the time table and the calendar via the symbols on the right, or enter the
data according to the following specifications.
● Time
Enter the current time of day manually in the specified format:
– hh:mm:ss
● Date
Enter the current date manually in the specified format:
– DD/MM/YYYY
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Hour (0...23), minute and second can also be entered as single digits.
Month and day can also be entered as single digits.
Example: March is accepted as "03" or as "3".
Operating Instructions, 10/2019, C79000-G8976-C503-02
SIMATIC CC7
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