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Disable, Enable, Network variable monitor point – Echelon OpenLNS User Manual

Page 683: R network variable monitor point

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OpenLNS Programmer's Reference

646

tag

An Integer type

mpObject

The

NvMonitorPoint

object to be acted

on.

object

An object that implements the

ILcaNvMonitorPointListener

interface.

Added to API

LNS Release 3.0.

Disable

Summary

Disables monitoring of a network variable monitor point.
When you disable monitoring of a network variable monitor

point, you should note that this overrides subsequent calls to

the MonitorSet object's Enable method.
For example, if you call the Disable method on a

NvMonitorPoint object named Point A, and then call the

Disable method on the monitor set containing Point A, Point

A would not be enabled. All other monitor points in the

monitor set, however, would be enabled.
Once you have explicitly disabled an NvMonitorPoint with

the Disable method, you can only re-enable that monitor

point by calling the Enable method on it, or by closing and

re-opening the monitor set it belongs to.
You can also disable an entire monitor set by calling the

Disable method on the MonitorSet object. When you do this,

polled and bound monitoring for all monitor points on the

monitor set will be disabled. After this, none of the monitor

points in the set can be enabled for monitoring until the

Disable method has been called on the MonitorSet object

again.
For more details on opening and enabling monior sets and

monitor points, see Chapter 9 of the OpenLNS Programmer’s

Guide.

Availability

Local, full, lightweight, and independent clients. Note that

temporary

MonitorSet

objects and temporary monitor points

are not available on Independent clients.

Syntax

object.

Disable

Element

Description

object

The

NvMonitorPoint

object to be

disabled.

Added to API

LNS Release 3.20.

Enable

Summary

Enables monitoring of a network variable monitor point.
You can enable monitoring of all the monitor points in a

permanent or temporary monitor set at once by setting the