JUMO 706585 LOGOSCREEN fd Operating Manual - Manual (Page 187)

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26 Configuration - Time server (SNTP)
26.1 General information about SNTP
SNTP is the abbreviation for "Simple Network Time Protocol." SNTP enables
the synchronization between the time of the paperless recorder with external
time signals (server; e.g. atomic clock).
Deviation that is
less than 30
seconds If the deviation of the time between the paperless recorder and server does
not exceed 30 seconds then the time in the paperless recorder is slowly ad-
justed or updated without generating a configuration.
Deviation that is
more than 30
seconds If the deviation of the time between paperless recorder and server does ex-
ceed 30 seconds then automatically a new configuration is generated and the
date and the time in the device is immediately set to the value from the server.
The following cases prevent synchronization:
• A transfer between setup program and recorder is active
• A transfer between the PCA Communication Software (PCC) and the re-
corder is active
• A user has opened an operating dialog (menu) such as configuration or pa-
rameterization on the recorder
• A function of the memory manager, such as exporting the recorder data to a
USB flash drive, is active
• A batch reporting is active
In these cases the synchronization will be canceled and another attempt will
be started after 5 minutes. If further unsuccessful attempts are the case then
the recorder will cause the repetition time of the recorder to vary to prevent
synchronization from taking place in the same constant interval.
Daylight saving
time The switch to summer time is not controlled over SNTP.
Note H
In the date and time section (Chapter 25) an additional synchroni-
zation option is available.