Echelon i.LON 600 LonWorks/IP Server - Manual (Page 72)

Section 2: Advanced Topics
SNTP client in the Configuration Server checkbox allows you to run an SNTP
client in the Configuration Server. If you are using a third-party SNTP server client
on the Configuration Server PC, read the below section before setting your system.
The SNTP Client options Maximum time correction and Update every only apply
if the Run the SNTP client in the Configuration checkbox is checked. The i.LON
600 device SNTP options are self-adjusting and cannot be configured.
3. Click OK to save and return to the main dialog.
Specifying SNTP Servers for a Channel or Device
All channels default to the SNTP server specified for the system as described above, and
all devices default to the SNTP server specified for the channel (i.e. the System SNTP
Server if the Channel SNTP server is not changed). Each channel and device in the
network may be configured to synchronize to a different SNTP time server.
To specify SNTP servers for a channel or device, follow these steps:
1. Select the channel or device in the main dialog of the Configuration
Server and right-click and select Properties or double-click the desired
channel or device. Click on the SNTP tab.
2. Clear the Use System Default or Use Channel Default option and
enter the IP addresses or host names of the SNTP servers as shown in
Figure 37 . Leave the default port numbers of 123.
Figure 37. SNTP Server Configuration for a Device and Channel
3. Click OK to save and return to the main dialog.
Using a Third-Party SNTP Client on the Configuration Server PC
When the Configuration Server PC is already setup to run a third-party SNTP client, the
Configuration Server’s system SNTP settings must be set accordingly. The third-party
SNTP client will synchronize the PC’s clock; therefore, SNTP client should not be run in
the Configuration Server. Doing so would cause the PC’s clock to be synchronized to two
SNTP servers—an undesired effect. The Configuration Server’s system level SNTP
setting is no longer tied with running an SNTP client in the Configuration Server.
64 L ON W ORKS /IP Channel Parameters