Echelon LonBridg Server - Manual (Page 40)

34 LonBridge Device Class File
LonBridge Device Class File Format
A LonBridge device class file is an XML document that the LonBridge Server
uses to define the interface for a device interface for a specified program ID.
When a device is discovered, the LonBridge Server searches the Classes directory
for a device class file with a matching program ID (see Classes Directory on page
13).
Table 7 lists the XML elements that a device class file includes.
Table 7. XML Elements for a Device Class File
Element Description
Defines the attributes for a device
Is a container element for the device attributes that are present
on the device
Defines the fields within a network variable
Defines the device class, and is the top-most element within a
class file
Enumerates each network variable defined for an
element
Defines the bytes that are sent on the L ON W ORKS network for a
network variable update to the device
Is a container element for the network variables defined for each
element
XML Elements for a Device Class File
The element defines the attributes for a device.
For an element within a element, the attribute name
must map an element that is defined within the
element.
Table 8 lists the attributes for the element.
Table 8. Attributes for the Element
Attribute Description Required?
enum Defines whether the attribute has an
enumeration of values within an enclosed
set of elements.
Optional