Echelon OpenLNS - Manual (Page 669)

OpenLNS Programmer's Reference 632
Read/Write Read/write.
Added to API LNS Release 3.0.
Parent
Summary Returns the object that spawned the current child object. The
parent object is determined by the means in which a child
object is accessed, not by the OpenLNS Object hierarchy.
Availability Local, full, lightweight, and independent clients. Note that
some collection objects are not available to Independent
clients.
Syntax parentObject = object.Parent
Element Description
parentObject The object that is the parent of the
specified object.
object Any object for which the parent is
desired.
Data Type Object.
Read/Write Read only.
Added to API Depends on the object used to access the property. Generally,
this property exists for an object as soon as the object is
added to the API.
PollInterval
Summary Determines the length between polls for polled network
variable monitoring .
When polling is enabled for a monitor point, OpenLNS will
periodically read the value of the monitor point and report
the value using the OnNvMonitorPointUpdateEvent. This is
most efficient when the value must be checked regularly, but
the application does not need to know immediately if the
value changes (for example, outside air temperature). You
can enable polling for a monitor set or monitor point with the
Enable method.
•
If this property is contained in the NvMonitorOptions
object accessed through a MonitorSet object, this property
sets the default poll interval for al monitor points
contained in the set.
• If this property is contained in the NvMonitorOptions
object accessed through the DefaultOptions or
CurrentOptions property of a NvMonitorPoint object, this
property sets the default or current poll interval for that
monitor point. Set the value to
lcaDefaultMcpInterval(-1) (from the
ConstLNSMonitorSetIntervalDefault constant) to have
the poll interval default to the value contained in the