Echelon OpenLNS - Manual (Page 1036)

OpenLNS Programmer's Reference 999
A network can use up to 12288 selector values. Unrelated connections will normally
require unique selector values. Intersecting connections automatically use the same
selector Network variable aliases are used automatically to resolve selector conflicts on a
node (i.e. to eliminate this exception from occurring), although this uses up one selector
for each alias. Starting in LNS 2.0, selector values are grouped into categories, with one
category being "shareable". Non-intersecting, point-to-point connections may reuse
selector values from this category any number of times. This is done automatically by the
OpenLNS Object Server.
lcaErrConnMtagInConnAlready
18
With the exception of the special message tag msg_in, a message tag may only appear in
one connection. This error will occur when a connection was attempted that violated this
constraint.
lcaErrConnAuthenticationMismatch
19
This error will occur when not all members of an attempted connection have the same
setting for authentication.
It is possible to connect an authenticated output to a non-authenticated input, but an
authenticated input must be connected to an authenticated output. A polling input must
be authenticated if any of the targeted outputs are authenticated.
lcaErrConnGrpTooLargeForAckd
20
This error will occur when an attempt is made to form a connection of more than 64
members that uses acknowledged service. Only unacknowledged or
unacknowledged/repeat service is allowed for connections with more than 64 members.
Such a connection must be built using a connection description that specifies one of these
service types.
This error may also occur when polled output network variables or polling input network
variables are involved in the connection.
lcaErrConnUnackdWithAuth
21
An attempt was made to form a connection using authentication but not using the
acknowledged service type.
The authentication process is composed of four messages, 2 of which are using the
Acknowledged service. This is why using the authentication service without the
Acknowledged service is illegal.
lcaErrConnAuthOnUnauthNode
22
An attempt was made to form an authenticated connection with an unauthenticated
node. Only nodes with the AuthenticationEnabled set to True are permitted to
participate in authenticated connections.
lcaErrConnBcastSubnetsDiffer
23
An attempt was made to subnet broadcast, but the devices are not all in the same
subnet. This error is not currently generated, since the broadcast type used is
determined automatically.
lcaErrConnNewBcastCausesNvLeak
24
An attempt was made to use broadcast addressing, but a network variable leak was
detected on another node. A network variable leak means that update messages for the