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Lonmarkobjectnumber, Maxlength – Echelon OpenLNS User Manual

Page 643

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OpenLNS Programmer's Reference

606

Syntax

memNumValue = nvObject.LonMarkMemberNumber

Element

Description

memNumValue The member number of the network

variable as a Long.

nvObject

The

NetworkVariable

object to be acted

on.

Data Type

Long.

Read/Write

Read only.

Added to API

Prior to LNS Release 3.0.

LonMarkObjectNumber

Summary

Contains the object number of the

LonMarkObject

to which

this network variable is assigned.

Objects on a device are generally numbered from 0 to n-1,

where n is the number of objects on the device. This is always

the case on devices with static interfaces.
If a device supports dynamic function blocks, some

LonMarkObject objects may be assigned an object number

greater than or equal to the value n (the number of objects on

the device).
If the network variable does not belong to a LonMarkObject,

this property will return –1.
You can use the LonMarkObjects collection’s ItemByIndex

method to access the LonMarkObject containing the network

variable. You will need to reference the LonMarkObject by its

device index when you call the method.

Availability

Local, full, and lightweight clients.

Syntax

objNumValue = nvObject.LonMarkObjectNumber

Element

Description

objNumValue

The object number of the network

variable as a Long.

nvObject

The

NetworkVariable

object to be acted

on.

Data Type

Long.

Read/Write

Read only.

Added to API

Prior to LNS Release 3.0.

MaxLength

Summary

Contains the maximum length (in bytes) of the network

variable.

You can determine the actual length of a network variable by

reading the Length property. If the network variable does not