Echelon LNS DDE Server - Manual (Page 58)

Exclusive Mode (Lightweight Clients)
This option is disabled for version 2.1 of the LNS DDE Server.
Host Message Owner
This option is disabled for version 2.1 of the LNS DDE Server.
Point Recovery Strategy
This setting determines the behavior when a device with one or more points loses
communication the LNS DDE Server. Select one of the following:
None
When there is an error communicating with a point, the LNS DDE
Server scales back the polling interval to 60 seconds, to attempt to
regain live data for each failed point. Once communication is
reestablished, polling will continue at the normal rate.
Priority When there is an error communicating with a device, the LNS DDE
Server will stop monitoring all points on that device. The LNS DDE
Server will send a ping to one point on the device every 60 seconds
using priority messaging. Once communication is reestablished, all
points on the device will be restored to automatic polling.
No Priority When there is an error communicating with a device, the LNS DDE
Server will stop monitoring all points on that device. The LNS DDE
Server will send a ping to one point on the device every 60 seconds
using non-priority messaging. Once communication is reestablished,
all points on the device will be restored to automatic polling.
Message Options—Network Variables
Service
This setting selects the default messaging service to be used when updating input
network variables on other devices from the LNS DDE Server. The available
settings are Acknowledged, Repeated, or Unacknowledged. The default service is
Acknowledged.
You can override the default messaging service with the -s switch.
Bound Service
When a DDE point is created by default, it does not have a binding service. This
setting selects the service that will be used for network variables created on the host
network interface when they are automatically created by the –b option. The
available settings are Acknowledged, Repeated, or Unacknowledged. The default
binding service is Unacknowledged.
3-26 Using the LNS DDE Server