Configuration in STEP 7
5.7 Configuring TIM modules
TIM DNP3
134 System Manual, 06/2014, C79000-G8976-C253-03
Figure 5-30 "NTP" tab
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You specify the synchronization cycle using the drop-down list.
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Here, select the offset of your local time zone to Greenwich Mean Time.
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– If the option is disabled, NTP without authentication is used.
– If the option is enabled, the secure method NTP (secure) is used.
NTP (secure) uses authentication with symmetrical keys according to the hash
algorithms MD5 or SHA-1.
You then make the settings for the parameters of the NTP servers.