Echelon i.LON SmartServer 2.0 - Manual (Page 240)

i.LON SmartServer 2.0 Programmer’s Reference 14-40
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Building 2/Channel 1/DIO-5/Digital Counter[0]
14.6.4 Using the Delete Function on a L
ON
W
ORKS
Functional Block
You can use the Delete function to delete a functional block on the SmartServer, or in an LNS network
database via the LNS Proxy Web service. The Delete function takes an element with a
LON_Fb_Cfg type as its input. The element only needs to include the functional block’s
property in the Delete Request as demonstrated in the following code sample:
Request
MyOldNetwork/MyOldChannel/MyOldDevice/MyOldFb
Response
0
MyOldNetwork/MyOldChannel/MyOldDevice/MyOldFb
14.7 Network Variables (L
ON
W
ORKS
Data Points)
The following section describes how to use the List, Get, Set, and Delete functions on network
variables (L
ON W ORKS data points). For information on reading and writing values to network
variables, see Chapter 4, Using the SmartServer Data Server.
14.7.1 Using the List Function on Network Variables
You can use the List function to retrieve a list of network variables (L ON W ORKS data points) on the
SmartServer or to retrieve a list of network variables in a specific LNS network database via the LNS
Proxy Web service. The List function takes an element that has an xSelect statement with
a LON_Dp_Cfg type as its input, as shown in the example below.
Request (return all the Network variables of all the functional blocks on the SmartServer or in
an LNS network database)
//Item[@xsi:type="LON_Dp_Cfg"]
Alternatively, you can filter the network variables (L ON W ORKS data points) returned by the List
function to those on a specific functional block by including the of the parent functional
block in the xSelect statement, or you can filter the network variables returned using the
and data point properties.
Request (use an xSelect statement to return all the network variables on a specific functional
block)