Echelon OpenLNS - Manual (Page 658)

OpenLNS Programmer's Reference 621
used for updates to the network
variable, as well as the network
variable’s default polling,
synchronization, priority and
authentication settings.
The valid values for this element,
which are contained in the
ConstNvOptionsFlags constant, are
as follows (these options can be
ORed together):
Note: Values 0,1 and 2 in this
constant are mutually exclusive.
Selecting more than one of them
will cause the LCA, #152
lcaErrInvalidServiceType
exception to be thrown.
0 lcaNvOptionsServiceAckd
Select this option to use the
acknowledged messaging service as
the default messaging service for
updates to the network variable.
When the network variable is part
of a connection, the value of the
ServiceType property in the
connection’s ConnectDescTemplate
may override this setting.
1
lcaNvOptionsServiceUnackdRpt
Select this option to use the
unacknowledged, repeat messaging
service as the default messaging
service for updates to the network
variable. When the network
variable is part of a connection, the
value of the ServiceType property
in the connection’s
ConnectDescTemplate may override
this setting.
2 lcaNvOptionsUnackd
Select this option to use the
unacknowledged messaging service
as the default messaging service for
updates to the network variable.
When the network variable is part
of a connection, the value of the
ServiceType property in the
connection’s ConnectDescTemplate
may override this setting.