LSI LASTEM Alpha-Log, Руководство пользователя

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Alpha-Log – User manual
LSI LASTEM SRL INSTUM_03388 Page 45 / 116
DNS Each device connected to the network is identified by an IP address. For convenience, each
device can be assigned to one name in order to identify it more easily in the network.
Name resolution (conversion from name to IP address) is performed by a DNS server of
the network. If the FTP, SMTP, NTP and MQTT protocols use names instead of IP addresses,
it is necessary to set the IP address of the DNS server.
Default value: 8.8.8.8.
Fig. 11 – DNS server configuration example
NTP NTP ( Network Time Protocol ) is a protocol used for synchronizing the Alpha-log clock using
the time obtained through an Internet server. The configured servers are those of the "NTP
POOL PROJECT"
pool.ntp.org (0.pool.ntp.org, 1.pool.ntp.org, etc.) It is preferable to use
the specific servers of the area where the data logger is installed (e.g. for Italy
it.pool.ntp.org) because they are easier to reach.
Default value: 0.pool.ntp.org and 1.pool.ntp.org.
Fig. 12 – NTP server configuration example
For further information about the Alpha-Log clock please refer to §4.2.2.
After setting the parameters relating to the interface and the network protocols, press the [Test] button to
check if what has been entered is correct. The test is necessary if FTP sites have been configured since 3DOM
creates the structure for the processed data and any configuration files.