Echelon LNS - Manual (Page 309)

LNS Programmer's Guide 295
RestoreLicense() method is called with the wasLNS parameter set to False
, the LNS
Server will debit LNS Device Credits based on the commissioned count.
Licensing and Device Manufacturing
In a manufacturing setting, you may want to load devices with the same configuration
information. The AppDevice object's Replace() method is a convenient way to
configure devices quickly in an "assembly line" fashion. The LNS License Agreement
specifies that the customer must use an LNS Device Credit for each device configured in
this way. However, the Replace() method does not automatically deduct LNS Device
Credits from the credit pool. To facilitate compliance with the license agreement, the
System object provides the DebitLicense() method. This method deducts the number
of LNS Device Credits specified by its count parameter.
For example, if 10 replace operations were performed, you could use the following code to
debit your LNS Device Credit pool:
MySystem.DebitLicense(10)
Testing Devices
The current version of the LNS License Agreement provides additional means to create
LNS-based manufacturing test tools that do not consume LNS Device Credits. Typical
production, calibration and test software will commission devices in a test network, and
then perform the necessary production steps. Since most L ON W ORKS devices should be
shipped in the unconfigured state, the production tool will decommission the device at
the completion of the burn-in and test phase:
MyDevice.Decommission()
As decommissioning returns the device credit, the entire manufacture tool consumes just
one credit for each device that is under test simultaneously.
Using the LNS License Utilities
The LNS Application Developer’s Kit includes two utilities that allow users to add or
transfer LNS Device Credits to their LNS Server PC. These utilities are the LNS Object
Server License Wizard and the LNS Object Server License Transfer Utility. These
applications are described briefly in this section. For more detailed information, see each
application’s online help.
Using the LNS Server License Wizard
You can use the LNS Server License Wizard to add LNS Device Credits to an LNS
Server. To do so, follow these steps:
1. Open the LNS Server License Wizard through the Echelon LNS Utilities group in the
Windows Programs menu on the PC running the LNS Server. The utility opens with the
dialog shown in figure 13.1.