Echelon LNS - Manual (Page 91)

LNS Programmer's Guide 77
Engineered Mode
In the engineered mode installation scenario, the network installation consists of two
phases:
1. A definition phase in which the user defines the configuration of the
devices and connections on the network in the LNS database without
physically modifying the network.
2. A commissioning phase in which the application loads the network
configuration created during the definition phase from the LNS database
into the physical devices on the network. Application images may also be
loaded during this phase, and some configuration properties may be
adjusted based on testing in order to properly calibrate the system.
Definition Phase
In the definition phase, the network configuration is defined off-site and loaded into the
LNS database, without modifying the physical network. The LNS application defines the
user interface that is used to enter the information. The interface can be anything from a
simple keypad, to a graphic display. The amount of information that the user must enter
is under the control of the application. In the most general case, the user could enter all
the information related to the network, including what devices will be installed on the
network, and how they will be connected. Alternatively, the application could automate
certain parts of the definition process. For example, the user may only need to pick a
configuration from a list of options, or the user may only need to enter device
configuration information while the tool automates connections.
The steps you need to follow to accomplish the tasks involved in the definition phase are
shown in figure 5.2. They are described in more detail in the section following figure 5.2.