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Nvmonitorpoint, Nvmonitorpointd, E nvmonitorpoint – Echelon OpenLNS User Manual

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OpenLNS Programmer's Reference

644

this set of options should

use bound updates.

FALSE. The monitor points using

this set of options should

not use bound updates.

nvMonOptsObject

The

NvMonitorOptions

object to be

acted on.

Data Type

Boolean.

Read/Write

Read/write.

Added to API

LNS Release 3.0.

NvMonitorPoint

A

NvMonitorPoint

object represents a single monitored or controlled network variable. You

can use network variable monitor points to perform explicit reading and writing, polled

monitoring, or implicit bound monitoring of network variables on devices in your network

with your application. For more information on network variable monitor points, see the

Monitor and Control chapter in the OpenLNS Programmer’s Guide.

In general, the NvMonitorPoint objects contained in MonitorSet objects created as temporary

or permanent monitor sets behave the same way except that the DefaultOptions properties of

the NvMonitorPoint objects in temporary monitor sets are not accessible. For more

information on this, see the DefaultOptions property of this object.

In addition, network variable monitor points in temporary monitor sets cannot be

automatically bound to the monitoring node. This means that the

UseBoundUpdates

property stored in the

NvMonitorOptions

objects used by all temporary monitor points must

be set to False. For more information on this, see the online help for the

UseBoundUpdates

property.
Temporary monitor sets, and all the monitor points they contain, can only be used in a single

client session. They are deleted by OpenLNS as soon as the session in which they were

created ends. For more information on the differences between temporary and permanent

monitor sets, see the

MonitorSet object

.

The following table summarizes the NvMonitorPoint

object.

Description

A single monitored or controlled network variable.

Added to API

LNS Release 3.0.

Accessed Through

NvMonitorPoints

object.

Default Property

Name.

Methods

Advise

Disable

Enable

Unadvise

Properties

ClassId

CurrentOptions

DataPoint

DefaultOptions

FormatSpec