Owner manual

OpenLNS Programmer's Reference 254
Properties
The DataValue object contains the following properties:
• AppDevice
• ClassId
• Data
• DataType
• FloatValue
• IntValue
• Length
• MonitorTag
• NetworkVariable
• SourceNodeId
• SourceSubnetId
• StringValue
AppDevice
Summary
Identifies the application device that is the source of the
network variable update represented by this DataValue
object.
The DataValue object represents a value from a network
variable that is being monitored. It is returned by the
OnNetworkVariableUpdate Event. The AppDevice object
identifies the device containing the network variable.
Note: OpenLNS needs to fetch this object from the OpenLNS
database when you read it. As a result, you should avoid
reading this property if you are writing a high-performance
monitoring application.
Availability
Local, full, and lightweight clients.
Syntax
appDevObject = dvObject.AppDevice
Element
Description
appDevObject
The AppDevice object to be returned.
dvObject
The DataValue object to be acted on.
Data Type
AppDevice object.
Read/Write
Read only.
Added to API
Prior to LNS Release 3.0.
ClassId
Summary
Identifies the object class of this object.
This property allows the object type to be determined when it
is unknown (for example, when the object was accessed using
the Parent property of another object).
Availability
Local, full, lightweight, and independent clients. Note that
some objects containing this property are not available to
Independent clients.