Echelon OpenLNS - Manual (Page 624)

OpenLNS Programmer's Reference 587
ConfigClassFlag
Summary Indicates whether the network variable is a configuration
network variable (CPNV) .
A CPNV is used for application configuration. This should
not be confused with a configuration property that is
implemented as a network variable, and the related
IsConfigProperty property.
Network variables that implement configuration properties
are always CPNVs, and the ConfigClassFlag and
IsConfigProperty properties for these network variables are
set to True. However, as described below, a network variable
can be a CPNV without implementing a LonMark compliant
configuration property. In this case, the IsConfigProperty is
set to False.
Device developers can create config network variables to
implement configuration properties using the "config_prop"
or "cp" keywords. This implements a configuration property
by creating a CPNV with L
ON
M
ARK
compliant network
variable strings. See the NodeBuilder User’s Guide for more
information on the "config_prop" or "cp" keywords.
A CPNV may also be implemented using the "config"
keyword. Typically these network variables will not
implement configuration properties. However, legacy
applications may also implement a configuration property by
declaring a network variable with the "config" keyword, and
hard-coding the appropriate LonMark compliant
self-documentation string. See the NodeBuilder User’s Guide
for more information on the the "config" keyword.
Availability Local, full, and lightweight clients.
Syntax configClassFlag = nvObject.ConfigClassFlag
Element Description
configClassFlag A Boolean value indicating whether
the network variable uses
authentication by default.
TRUE. T he network variable is
declared as a CPNV .
FALSE. T he network variable is not
declared as a CPNV .
nvObject The NetworkVariable object being
queried.
Data Type Boolean
Read/Write Read only.
Added to API Prior to LNS Release 3.0.