Echelon OpenLNS - Manual (Page 197)

OpenLNS Programmer's Reference 160
Description
Summary Stores description information about the ConfigProperty
object .
Availability Local, full, lightweight, and independent clients. Note that
some collections are not available to Independent clients.
Syntax stringValue = object.Description
Element Description
stringValue A string description of the
ConfigProperty object.
object The ConfigProperty object to be acted
on.
Data Type String.
Read/Write Read/write.
Added to API This depends on the object used to access the property.
Generally, this property exists for the objects listed above as
soon as they are added to the API. See the applicable object
to determine what release it was introduced in.
DeviceSpecificAttribute
Summary Reads or writes the the device-specific attribute of the
configuration property.
Many configuration properties contain a device-specific
attribute, which indicates that the value of the configuration
property can be changed without the network manger’s
knowledge. For example, the configuration property value
may be changed locally by the device itself, or remotely by
another device on the network. As a consequence, the value
of the device stored in the OpenLNS database may not be the
most current value. It is not possible for LNS to know
whether the value of a device-specific configuration property
stored in the device or in the OpenLNS database is the
current value.
Depending on the setting of the SourceOptions property, the
device-specific attribute affects how OpenLNS will read or
write the value of the configuration property when it is
accessed via a data point, or via the ConfigProperty object’s
GetRawValuesEx and SetRawValuesEx methods. It may also
affect what configuration property values are downloaded or
uploaded to the OpenLNS database when you call the
DownloadConfigProperties and UploadConfigProperties
methods.
Initially, the device-specific attribute is defined by the
programmatic interface of the device, in the device’s external
interface file or self-documentation. However, whether the
configuration property can or should be modified without the
knowledge of OpenLNS is often dependent on the