Echelon OpenLNS - Manual (Page 194)

OpenLNS Programmer's Reference 157
implemented by an array of network variables, array
elements will be implemented by consecutive network
variables. This property returns the network variable
that implements the first element. To retrieve the
network variables for subsequent elements, increment
the index of the network variable the appropriate number
of times, and call the ItemByIndex method on the
NetworkVariables property of the main Interface object.
• If the configuration property is implemented by a
configuration value file, this property throws an LCA,
#164 exception (“configuration property not implemented
by a configuration network variable”).
Note: This property is not currently available from within a
DeviceTemplate object; therefore, it will throw a LCA, #38
LCA_APP_DEVICE_REQUIRED exception when accessed.
Availability Local, full, and lightweight clients.
Syntax nvObject = cpObject.ConfigNv
Element Description
nvObject The configuration network variable
implementing this configuration
property.
cpObject The network variable-based
ConfigProperty object to be acted on.
Data Type NetworkVariable object.
Read/Write Read only.
Added to API OpenLNS.
ConfigNvIndex
Summary Specifies the index of the configuration network variable that
implements the ConfigProperty object iguration property.
A ConfigProperty object is implemented by a configuration
network variable or a configuration value file. To determine
how the configuration property is implemented, read the
ImplementationType property of the ConfigProperty object.
• If the configuration property is implemented by a
configuration NV, this property specifies the index of that
configuration network variable.
• If the configuration property is implemented by a
configuration value file, this property throws an LCA,
#164 exception (“configuration property not implemented
by a configuration network variable”).
To directly access the configuration network variable, read
the ConfigNv property (read the NV’s current selector).
If the configuration property is an array that is implemented