Echelon OpenLNS - Manual (Page 227)

OpenLNS Programmer's Reference 190
AuthenticationFlag.
This property is used for network
variable connections only.
Data Type Boolean.
Read/Write Read/write.
Added to API Prior to LNS Release 3.0.
UsePriorityFlag
Summary Indicates whether this connection uses priority messaging .
With priority messaging, the device with the highest priority
sends its packet before any other devices can send theirs.
This is accomplished by assigning each priority device a time
slot where it can transmit before all other lower priority and
non-priority devices. These time slots consume network
bandwidth; therefore, priority messaging should only be used
for critical devices and data.
Availability Local, full, and lightweight clients.
Syntax usePriorityFlag = cdtObject.UsePriorityFlag
Element Description
cdtObject The ConnectDescTemplate object to be
acted on.
usePriorityFlag A Boolean value.
This property will only be read by the
Object Server if the
lcaConnPropsPriority option is set
in the ConnectDescTemplate object’s
PropertyOptions property.
•
A True value indicates that this
connection uses priority
messaging.
• A False value indicates that this
connection does not use priority
messaging.
• If this value is not explicitly set
for a ConnectDescTemplate object,
it defaults to the network
variable’s DsPriority property .
Data Type Boolean.
Read/Write Read/write.
Added to API Prior to LNS Release 3.0.