User`s guide

i.LON SmartServer Power Line Repeating Network Management Guide 57
resides or manually specify the time. After you have stored the time of day on the SmartServer, you
enter the geographic coordinates of the SmartServer.
Based on this information, the astronomical position sensor application on the SmartServer calculates
the position of the sun relative to the SmartServer and stores this information in nvoElevation_005 and
nvoAzimuth_005 SNVT_angle_deg data points. The SmartServer then uses the data points to
calculate the sunrise and sundown times and stores the results in nvoSunrise and nvoSunset
SNVT_time_stamp data points. The information in these data points is then passed to the Event
Scheduler so you can create events based on the calculated sunrise and sundown times.
Setting the SmartServer Time
For the SmartServer to calculate the position of the sun, you need to store the time of day on it. You
can do this in two ways: you can add an SNTP time server to the LAN on which the SmartServer
resides, or you can manually configure the time.
Adding an SNTP Time Server
Top add an SNTP server to the LAN, follow these steps:
1. Right-click the LAN node, point to Add Host, and then click Server (E-mail, Time, IP 852
Config) on the shortcut menu.
2. The Setup – Host Web page opens, and a server node is added to the tree view below the LAN
node.
3. Enter the IP address or host name of the SNTP server and then click Submit.
4. Right-click the new server node, point to Add Service, then and click Time (SNTP) on the
shortcut menu.