Echelon SmartServer 2.2 - Manual (Page 174)

SmartServer 2.2 User’s Guide 175
Temperature
Sensor
SNVT_temp_f
72.4142
SNVT_temp
72.5
Room Controller
In addition, Web connections can translate structured data points (data points with multiple fields such
as SNVT_switch) for which presets have been defined. For example, you can define an ON_100
preset for the SNVT_scene data point of a scene controller connected to one SmartServer and the
SNVT_switch data point of a lamp connected to another SmartServer. You then create a Web
connection with the data points of these devices. When the SNVT_scene data point is set to
SC_RECALL 4, the source SmartServer sends the ON_100 preset to the destination SmartServer on
the other end of the Web connection over the LAN. The destination SmartServer receives the ON_100
preset and then updates the SNVT_switch data point of the lamp to 100.0 1. The following example
demonstrates a translation performed using presets over a peer-to-peer binding.
SNVT_scene
SC_RECALL 4 Internet (LAN/
WAN)
Internet (LAN/WAN)
SNVT_switch
Scene Controller
Lamp
Preset Preset
ON_100 ON_100 100.0 1
To create a Web connection, follow these steps:
1. Add Web Connection destinations (remote SmartServers, OpenLNS Servers, and Web Connection
Target servers) to the LAN with which you want to create a web connection. See Adding Host
Devices in Chapter 3 for more information on adding host devices to the LAN.
2. From the navigation pane in the left frame of the SmartServer Web interface, right-click a source
data point and then click Add Connection in the shortcut menu.
3. The Configure – Web Connection Web page opens and the hostnames of the local SmartServer
and any remote SmartServers, OpenLNS Servers, and Web Connection Target servers that have
been added to the LAN appear in the application frame to the right. The host devices in the right