Dspriority – Echelon OpenLNS User Manual

Page 921

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OpenLNS Programmer's Reference

884

developing a remote application that uses shared access

mode (meaning that the DsMode property is set to

lcaDsModeShared), you cannot set the NetworkVariable

object’s DsPollInterval property. An exception will be raised

if you attempt to do so.
The System

object's DsPollInterval property sets the default

value, which is applied when a NetworkVariable object's

DsPollInterval property is left unspecified. Once an

application has explicitly set the value of the DsPollInterval

property of the System object, it will not be reverted back to

the default value by OpenLNS, and must be maintained

manually from that point on.

Availability

Local, full, and lightweight clients.

Syntax

intervalValue = object.DsPollInterval

Element

Description

intervalValue Poll or throttle interval, in tenths of a

second.

The allowed range is 0 to

33554431 (0x01FFFFFF). This

maximum value corresponds to a time of

approximately 38.8 days. The default

value is 10 (one second) for the

DsPollInterval property.
The system's current DsPollInterval

value establishes the default that will be

used by newly created NetworkVariable

objects whose DsPollInterval value is

left unspecified.

object

The

System

object to be acted on.

Data Type

Integer.

Read/Write

Read/write.

Added to API

Prior to LNS Release 3.0.

DsPriority

Summary

Specifies whether the Data Server polls or updates a network

variable using priority messages

.

Note: This property is deprecated because it was only useful

with single-point monitoring. You should use temporary

monitor sets instead of single-point monitoring. When doing

so, you can use the Priority property to determine the priority

assigned to each message. For more information on

temporary monitor sets, see the OpenLNS Programmer’s

Guide.

Availability

Local, full, and lightweight clients.

Syntax

priorityFlag = object.DsPriority

Element

Description

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