Echelon OpenLNS - Manual (Page 731)

OpenLNS Programmer's Reference 694
and NodeId properties.
If the state is lcaStateUncnfg or
lcaStateCnfgOffline, you can
resolve this by recomissioning the
device or router with the Commission
method.
If the state of an application device is
lcaStateNoApplUncnfg, and that
device is a Neuron hosted device, you
must reload the application with the
Load method. After either operation,
the state of the device or router will
be lcaStateSoftOffline.
You may want to change the State
property of the device or router to
lcaStateSoftOnline after the load
or commission succeeds.
ObjectHandle The Handle of the attached or
unattached object.
Added to API LNS Release 3.0.
OnChangeEvent
Summary Indicates that an object has been modified in the OpenLNS
database . This event may be used by applications to maintain
lists of objects, such as those that might appear on a user
interface.
You can use the System
object’s BeginChangeEvent and
EndChangeEvent methods to subscribe and unsubscribe your
application to this event. When you register for the event with the
BeginChangeEvent method, you will select an object type(s) to
receive events for. The OnChangeEvent event will then be fired
whenever changes are made to objects of that type(s) in the
OpenLNS database.
You can use the OnAttachmentEvent to be notified of attachments
to or detachments from the physical network.
Syntax OnChangeEvent(networkHandle As Long, systemHandle As
Long, objectType as Integer, changeType As Integer, objectHandle
As Long)
Element Description
networkHandl
e
Handle of the network in which the changed
object resides.
systemHandle Handle of the system in which the changed
object resides.
objectType The type of object that changed. The
enumerated values for this element, which are
contained in the ConstChangeEventTypes