Echelon i.LON SmartServer 2.0 Power Line - Manual (Page 134)

120 Connecting Devices on a Power Line Repeating Network
You can use the View – Data Points Web page to enable the type translator and control the switch
device. In this Web page, you can add the SNVT_switch data points of the type translator, the switch,
and the luminaires.
You first set the state of the “Enable” data point on the type translator to ON. You can then change the
state and/or value of the “switch ON_OFF” data point on the switch device, and the luminaires will be
updated accordingly.
Creating Web Connections
You can connect devices on a power line repeating network to other devices on the power line or to
devices on other networks through the SmartServer gateway using Web connections. To create a Web
connection, you select a source data point on the local SmartServer, and then you select a compatible
target data point on the same local SmartServer or a remote SmartServer on the LAN. Once you create
a Web connection, the local SmartServer sends a request message to the each time the value of the
selected source data point changes. Upon receiving the request message, the destination SmartServer
updates the selected target data point to the value specified for the source data point in the request
message.
For a power line repeating network, you typically create two types of Web connections: internal
bindings and peer-to-peer bindings.
• An internal binding is a connection between two data points on a single SmartServer. Using a
street lighting application for example, you can use an internal binding to connect an emergency
switch to the luminaires on the same power line repeating network. You can then use the
emergency switch locally or remotely to brighten and dim the luminaires and turn them on and off.
• A peer-to-peer binding is a Web connection between two data points on two separate
SmartServers. Using the street lighting emergency switch example again, you can use
peer-to-peer bindings to connect an emergency switch residing on a TP/FT-10 network located in
a remote building to control the luminaires. To create such a Web connection, you need to add the
SmartServer attached to the power line repeating network as a remote SmartServer to the
SmartServer attached to the FT-10 or non-repeating PL-20 network.
Note: If an Ethernet or phone connection is not available to the SmartServer connected to the power
line repeating network, you need to connect an external GSM/GPRS modem to the SmartServer and
then configure the remote connections for that modem. See Chapter 3 of the i.LON SmartServer 2.0
User’s Guide for more information on adding an external GSM/GPRS modem and configuring its
dial-in and dial-out connections.