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LNS Programmer's Guide

208

Property Name Description

UseBoundUpdates

If set to True, this property enables implicit binding.

With implicit binding enabled, LNS will attempt to

create connections without user intervention. Changing

this option through the CurrentOptions property does

not have an effect.

Before using this property, you should review the Using

Network Variable Monitor Points section, which

describes different ways you can use implicit binding.

This property must be set to False for temporary monitor

sets and points.

Default Value: False

NOTE: In the NvMonitorOptions object accessed through the DefaultOptions

property of a network variable monitor point, the PollInterval and

ThrottleInterval properties will initially be set to lcaDefaultMcpInterval (-1).

The GenerateInitialFetch, ReportByException, ResetPollingIfUpdated, and

SuppressPollingIfBound properties will be initially set to lcaDefaultMcpOption(-

1). This causes the values of those properties to always match the corresponding value

stored in the monitor set’s NvOptions object. As noted previously, the values of all the

other properties of the monitor set’s NvOptions object are only applied to monitor points

as they are added to the set, and so changes to the monitor set’s NvOptions object are

not retroactively applied to the monitor points already contained in the set for any other

properties.

Message Monitor Point Options

To recap the previous discussion in this chapter, you should follow these steps when

setting the monitoring options for your message monitor points:

1. Set the defaults for the monitor set by writing to the MsgOptions

property of the MonitorSet object. The following code sample sets the

default values for the FilterByCode, and FilterBySource properties.

Dim MsgMonitorPointOptions As LcaMsgMonitorOptions

Set MsgMonitorPointOptions = MyMonitorSet.MsgOptions

MsgMonitorPointOptions.FilterBySource = True

MsgMonitorPointOptions.FilterByCode = True

Set MyMonitorSet.MsgOptions = MsgMonitorPointOptions

For descriptions of the properties of the MsgMonitorOptions object, see

MsgMonitorOptions Object on page 209.

2. If you do not want a message monitor point in the monitor set to use the

default options established in step 1, set its defaults by writing to the

message monitor point’s DefaultOptions property. Note that these

changes will not be applied to a monitor point that is in an open monitor

set until the monitor set is closed and re-opened.

Echelon recommends that you set the DefaultOptions property in the

same transaction that you create the message monitor point whenever

possible. The following code sample sets the default values for a message

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