Echelon LNS DDE Server - Manual (Page 47)

If this option is disabled, a summary message will be generated when a service pin
message is received. The message contains only the device path (subsystem path and
device name) if available or the Neuron ID of the device which sent the service pin
message.
Attachments
Attachment events are generated for devices that have ping enabled. You can use an
LNS tool such as the LonMaker Integration Tool to enable and disable ping for a
given device. The first time a device responds to a ping, an attachment message is
generated if this option is enabled. When a device has not responded to three
consecutive pings, a detachment message is generated if this option is enabled.
The server uses the attachment events to manipulate the poll interval for the
network variables it accesses in the device. When a detachment occurs, the server
will increase the poll interval to prevent network delays from happening due to
excessive retries. After a detachment has occurred, the following attachment event
will restore the normal poll interval.
Attachment events are displayed as information and warning messages. The trace
message contains information about the internal name of the device for which an
attachment event is generated, and whether it was an attachment or detachment.
Database Changes
This option generates a message when a change occurs in the LNS Server database.
This event is not used by the LNS DDE Server. A database change occurs when an
LNS tool adds or removes any of the following: a channel, a device, a router, or a
subnet.
License Settings
The License Settings dialog contains information regarding the current
status of your LNS DDE Server license and allows you to register the
product once a permanent license is purchased. This dialog appears as
follows (the displayed text may be different depending on your LNS DDE
Server supplier):
LNS DDE Server User's Guide 3-15