Echelon OpenLNS Commissioning Tool - Manual (Page 136)

120 Designing Networks
Repeated with Alias Multicast Repeated Alias
Repeated with Broadcast Multicast Repeated Broadcast
Repeated with Group Multicast Repeated Group
SCD_Alias ● Acknowledged Alias
SCD_Default
●
Repeated Group (if available);
otherwise, domain
broadcast
SCD_SubnetBcast ● Repeated Subnet broadcast
SCD_Unicast ● Acknowledged Group
Unacknowledged*** Unacknowledged Group
Unacknowledged with Alias Multicast Unacknowledged Alias
Unacknowledged with Broadcast
Multicast Unacknowledged Broadcast
Unacknowledged with Group Multicast
Unacknowledged**
Unacknowledged Group
* Smart Connection Descriptions (SCDs) are pre-defined connection descriptions that OpenLNS CT automatically assigns to
a connection being created or changed based on the number of target network variables, whether the target network variables
are located on the same or different subnet, and the availability of network variable aliases. See Using Automatic Connection
Description Selection for more information.
** ConnectDescTemplate_0 is the default connection description. It enables OpenLNS CT to automatically select a smart
connection description that uses the most appropriate message service type and addressing mode for the connection. It cannot
be modified or deleted.
*** Repeated and Repeated with Group Multicast are identical, as are Unacknowledged and Unacknowledged with
Group Multicast. Repeated and Unacknowledged support connections using these connection descriptions in OpenLNS CT
networks that were created with previous releases of the LonMaker tool.
You can view the properties of these pre-defined connections and create new connection descriptions
in the Connection Details dialog box. You can also use this dialog to change the properties of a
pre-defined connection. To access this dialog box, right-click a connector SmartShape, select
Properties from the shortcut menu, and click Properties on the Network Variable Connection
dialog box. Optionally, you can click Add-ins, click OpenLNS CT, click OpenLNS CT Options,
select Smart Connection Descriptions from the options category list, and then click Details.