Echelon OpenLNS - Manual (Page 90)

OpenLNS Programmer's Reference 53
exist on the network, and respond to queries. If the device is
installed, it must contain the expected domain/subnet/node
address, and respond to subnet/node messages on that
address. It must also contain the expected program ID, and
the expected network management authentication setting
(enabled or disabled). If network management authentication
is enabled on the device, it must contain the correct system
authentication key. Furthermore, the test verifies that there
are no other nodes that respond with the tested nodes
subnet/node address.
The results of the test are contained in the AppDevice
object 's LastTestInfo property.
This service analyzes the result with the assumption that the
node's network image is up-to-date; therefore, ensure that
the node is up-to-date by invoking this service only while the
MgmtMode property is set to
lcaMgmtModePropagateConfigUpdates (0). This is
because discrepancies between the OpenLNS database and
the current configuration of the device on the network are
normal, and can be expected while the management mode is
lcaMgmtModeDeferConfigUpdates (1). These
discrepancies will typically be resolved automatically when
the system manage mode has been changed to
lcaMgmtModePropagateConfigUpdates (0).
For more information on the Test method, see the Testing
Devices and Detecting Device Failures section in Chapter 6 of
the OpenLNS Programmer’s Guide.
Availability Local, full, and lightweight clients.
Syntax testStatus = deviceToTest.Test
Element Description
testStatus An Integer value with the results returned
by the test.
The enumerated values for testStatus, which
are contained in the ConstTestResults
constant, are as follows:
0 lcaTestResultGood
The device passed all applicable tests.
1 lcaTestResultComm
The OpenLNS Server was unable to
communicate with the device using either
Neuron ID or its subnet/node addressing.
The Network Service Device might not be
attached to the network, the Network
Service Device might be unconfigured, the
target device might not be attached to the
network, the target device may be powered
off, or the target device may be faulty.