Echelon OpenLNS - Manual (Page 291)

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.