Useasyncsend – Echelon OpenLNS User Manual

Page 527

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OpenLNS Programmer's Reference

490

service. The device does not send

acknowledgment messages;

however, repeat messages are sent

to the device after the initial

message is sent to it to ensure that it

reaches its destination.
You can set the number of repeat

messages to send, and the interval

at which they will be sent, by

writing to the RepeatCount and

RepeatTimer properties.

2 lcaSvcUnackd
Unacknowledged messaging service.

The device does not send

acknowledgment messages.
Do not use this service type on

channels that support altnerate

frequencies because the message

will only be sent using the primary

path. See the AltPathType property

for more information.
3 lcaSvcRequest
Request/Response messaging

service. You can use this value

when sending explicit messages if

the device receiving the message is

designed to send a response message

for the specified message code.

monOptsObject

The

MsgMonitorOptions

object to be

acted on.

Data Type

Long.

Read/Write

Read/write.

Added to API

LNS Release 3.0.

UseAsyncSend

Summary

Determines whether OpenLNS will wait for a completion

code to return after updating the value of a monitor point

before sending its next update message

.

When sending the values of network variable and message

monitor points prior to LNS 3.20, LNS would wait for the

completion code for each message sent to be returned before

returning to the user, regardless of the messaging service

type being used. You can use this property to determine

whether OpenLNS should wait for the completion code.
Note: The UseAsyncSend property can be used to confirm

when the values of the monitor points on your network have

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