Echelon FTXL - Manual (Page 166)

154 FTXL LonTalk API
Dynamic Network Variable Event Handler
Functions
Table 18 lists the event handler functions that are called by the FTXL LonTalk
API to process dynamic network variables. See Handling Dynamic Network
Variables on page 92 for more information about using these functions.
Table 18. Dynamic Network Variable Event Handler Functions
Function Description
LonNvAdded() Indicates that a dynamic network variable has been added.
LonNvDeleted() Indicates that a dynamic network variable has been deleted.
LonNvTypeChanged() Indicates that one or more attributes of a dynamic network
variable have changed.
Application Messaging Event Handler
Functions
Table 19 lists the event handler functions that are called by the FTXL LonTalk
API for application messaging transactions. Customize these functions if you use
application messaging in your FTXL device. Application messaging is optional
and only recommended for implementing the L
ON W ORKS file transfer protocol
and for proprietary interfaces.
If you choose not to support application messaging, you do not need to customize
these functions.
Table 19. Application Messaging Event Handler Functions
Function Description
LonMsgArrived() Indicates that an application message has arrived from the
network to be processed. This function performs any application-
specific processing required for the message. If the message is a
request message, the function must deliver a response using the
LonSendMsgResponse() function.
Application messages are always delivered to the application,
regardless of whether the message passed authentication. The
application decides whether authentication is required for a
message.
LonMsgCompleted() Indicates that message delivery, initiated by a LonSendMsg() call,
was completed.
If a request message has been sent, this event handler is called
only after all responses have been reported by the
LonResponseArrived() event handler.