Echelon OpenLNS - Manual (Page 109)

OpenLNS Programmer's Reference 72
ConnectionUpdateType
Summary Specifies in which state the AppDevice is placed while
performing a connection update.
Normally, when connecting network variables, the devices
containing the network variables are taken hard-offline prior
to making the update. Once all affected devices are in this
state, each device is updated, placed in the configured state,
and, if they were previously online, will be placed online
again. This way the configuration of all devices that are
currently online will be consistent at all times.
This property allows the device to remain online while these
changes are being made. This allows a device to continue
sending and receiving updates while its connection status is
being changed. This can result in invalid network variable
updates being sent or received.
Availability Local, full, and lightweight clients.
Syntax updateType = appDeviceObject.ConnectionUpdateType
Element Description
updateType The update type value. The values for
this element, which are stored in the
ConstConnectionUpdateTypes
constant, are as follows:
-1
lcaConnectionUpdateTypeNotSet
The device's ConnectionUpdateType
property has not been set. Its behavior
defaults to the value specified using
the global Flags property.
0
lcaConnectionUpdateTypeOffline
The device will be put offline while
connections are taking place.
1
lcaConnectionUpdateTypeOnline
The device will be left online while
connections are being made. This
setting is not recommended, as it may
cause your application to process or
send network variable updates using
inconsistent network variable
configuration. This may lead to
misinterpretation of network variable
updates on this or other devices.
appDeviceObject The application device to be acted on.
Data Type Integer.