Echelon LonBridg Server - Manual (Page 41)

LonBridge Server User’s Guide 35
Attribute Description Required?
length Defines the length of an input network
variable.
Example: For a network variable with a
length of 2, the element maps
attributes to bytes 0 and 1.
Optional
name Defines the name for the attribute. Required
scale Defines a percentage by which to scale the
value.
Example: If the server reads a value of 200
from a device while polling brightness, and
it has a scale value of 50 for that byte, then
the LonBridge XML for messages will
display the brightness as 100 (50% of 200 is
100).
Optional
value Defines an absolute value for the byte to be
updated for a network variable.
The value attribute is used only for input
network variables.
Optional
Example 1:
Example 2:
The element is a container element for the device attributes that
are present on the device. It also contains the network variables that are
used for input and output.
At least one element, with one or more elements within the
element, must be defined for a specific element.