beautypg.com

Extensions – Echelon OpenLNS User Manual

Page 567

background image

OpenLNS Programmer's Reference

530

EventInterval property expires, OpenLNS will not call the

GetNextEvent service right away. Instead, it will wait until

the next event (or set of events) occurs, deliver that event to

the client, and then immediately call GetNextEvent (because

the interval has already expired). Following that, OpenLNS

will call the GetNextEvent service at the interval defined by

this property.
Note that as you set this property to lower and lower values,

more and more request-response messages will be sent to the

server. You should keep this in mind when setting this

property, as it may cause more network traffic than you

desire.
This property is not applicable to Local Client and Full Client

applications because the OpenLNS Server delivers events to

those clients as soon as they occur. However, you can change

the default value used by all of the Lightweight Clients on

the network by changing the value of this property on a Local

Client. By changing the value of this property on a

Lightweight Client application, you change the value used by

that client only.

Availability

Local, full, and lightweight clients.

Syntax

eventInterval = networkObject.EventInterval

Element

Description

eventInterval

The period of time that has passed

since the last event request.

networkObject

The

Network

object to be acted on.

Data Type

Long.

Read/Write

Read/write.

Added to API

Prior to LNS Release 3.0.

Extensions

Summary

Contains the

Extensions

collection object associated with the

specified

Network

object.

This property returns an

Extensions

collection. The objects

in this collection represent user data reserved for

manufacturers. Each object is identified with a unique

identifier set by the manufacturer.
Note: The

Extensions

collection for a

Network

object is stored

in the specific OpenLNS global database computer, and it is

not exported with the

Network

database. As a result, the

collection would be lost in the process of transferring a

network database from one computer to another.

Availability

Local, full, lightweight, and independent clients.

Syntax

extensionsColl = object.

Extensions