Echelon OpenLNS - Manual (Page 301)

OpenLNS Programmer's Reference 264
State
Summary Describes the state of a device, router side, router, or system.
This data is available for application devices and router
sides.
Setting the Device State
You cannot set the state of a device in the same transaction
as an Add, Commission, or Replace method.
The state change may fail if the device has not been
completely updated due to a previous communication
problem or if the device has not been commissioned. If a
failure occurs, use the Commission method to force an update
of the device.
You cannot set the state of a device during the definition
phase of the predefined components installation scenario.
Offline Devices
Offline devices cannot receive network events related to
monitor and control. For example, if the State property of an
application device installed on the network is set to offline,
then that device will not be able to receive incoming network
variable events.
Additionally, devices are set offline while they are being
configured or commissioned. For example, if you add or
remove a connection between an application device and the
Network Service Device, both the application device and
Network Service Device will be set offline while the change is
being made. During that time, the Network Service Device
will not process network variable updates, nor will it poll
network variables because the configuration of the
application device and the configuration of the Network
Service Device are in a state of fluctuation. However, you can
use the OnSessionChangeEvent event to track when the
Network Service Device goes online or offline.
Availability Local, full, and lightweight clients.
Syntax stateValue = object.State
Element Description
stateValue The state of the device. The enumerated
values for this element, which are
contained in the ConstDeviceStates
constant, are as follows:
2 lcaStateUncnfg
The application is loaded but the
configuration is either not loaded, being
reloaded, or deemed corrupted due to a
configuration checksum error.
A Neuron Chip also can make itself
unconfigured by calling the Neuron C