Echelon IP-852 Channel - Manual (Page 36)

28 IP-852 Channel Parameters
1. In the IP-852 Configuration Server, click Network, click Settings, and then click
the SNTP tab.
Figure 3.4 Setting the System SNTP Server
2. Enter the IP address or host name of the primary and secondary SNTP servers. The
IP addresses must be static IP addresses. You can typically use the default port
numbers of 123.
3. The Use SNTP Server on Device check box is selected by default. This means that
the IP-852 device fetches the time from the specified SNTP time server to update its
clock.
If this check box is cleared, the IP-852 device does not fetch the time from the SNTP
server. This may be desirable in small IP networks that have no significant latency,
and do not define a channel timeout (see Channel Timeout earlier in this chapter for
more information).
4. The Run SNTP Client on Configuration Server check box is selected by default.
In this case, the IP-852 Configuration Server fetches the time from the specified
SNTP time server and calculates the effective time to be used by all the IP-852
devices on the IP-852 channel.
If this check box is cleared, the IP-852 Configuration Server does not fetch the time
from the SNTP server. This may be desirable if all the IP-852 devices and your
computer’s clock are already being synchronized by the same SNTP time server, or
the IP-852 devices are using individual SNTP time servers but those time server are
providing sufficiently close times. In these cases, you can clear this check box to save
the overhead created by the IP-852 Configuration Server having to independently
fetch the time.