Echelon SmartServer 2.2 - Manual (Page 258)

SmartServer 2.2 User’s Guide 259
3. In the Name property, enter a name for the data point that is unique to its parent functional block
(data point names are case sensitive) or accept the default programmatic name that appears after
you select the data point type. For example, if you do not enter a name and then select the first
analog input data point for an analog functional block, AFB_A1_1 appears in this field.
4. In the Select property, select the type of data point to be created: Static or Dynamic. The
Dynamic option is only available for functional blocks representing the SmartServer’s built-in
applications, virtual functional blocks, and devices with dynamic interfaces such as the
SmartServer with the V40 interface active.

Static. Expand the static node to show all the static data points programmatically defined for
the functional block by the device’s external interface. Click the static data point to be
created.

Dynamic. Expand the dynamic node to show all the folders in the lonworks/types directory
on the SmartServer (if you are adding a data point to a functional block in the SmartServer
tree) or on the OpenLNS Server (if you are adding a network variable to a functional block in
the OpenLNS tree). Expand a folder in the lonworks/types directory to show all the available
resource files in that folder. Expand a resource file and then expand its configuration property
types or network variable types to show all the available SNVTs, UNVTs, or built-in data
types in that file. Click the SNVT, UNVT, or built-in data type to be used by the data point.
5. The Type property displays the data type (SNVT, UNVT, or built-in data type) used by the
selected data point in the following format: #<manufacturer ID>[scope selector].<type name>.
6. Click OK. The data point is added underneath the icon of its parent functional block.
7. Click Submit.
Configuring L
ON
W
ORKS
Data Points
You can configure data points in both General and Driver modes. In General mode, you can click a
L
ON W ORKS data point to open the Configure - Data Point Web page. You can use this Web page to
view or configure the following properties for that L ON W ORKS data point: alias name, whether a
constant, default and invalid values, format description (read only), whether its unit string is made
available to applications, network performance configuration properties (heartbeat, throttle, offline,
and send on delta), presets, and unit strings used for the fields of structured data points.
In Driver mode, you can click a L ON W ORKS data point to open the Setup – LON Data Point Driver
Web page. You can use this Web page to view or configure the following properties for that
L
ON W ORKS data point: poll rate, direction, whether it is static or dynamic, length, and format
description. In addition you can change the icon used by the data point in the navigation pane and
application frame and select whether the data point is hidden or shown in the tree.
The following table summarizes the different properties you can set for L ON W ORKS data points in
General and Driver modes.