62 LonTalk Communication Interface • ACC-SVN100A-EN
N
network variable input (nvi)
A controller's input data item that enables it to exchange
data values with other devices on the LonTalk network.
This type of data item can be changed and controlled.
network variable output (nvo)
A controller's output data item that enables it to exchange
data values with other devices on the LonTalk network.
This type of data item is for status only.
network variable type
A pre-defined structure for a network variable. A network
variable type can be either a standard network variable
type (SNVT) or a user-defined network variable type
(UNVT).
Neuron ID
A unique 48-bit digital identifying number assigned by
Echelon to every Neuron processor produced. This
number is printed on a label that is attached to the LCI-C.
Neuron IDs eliminate the need to set addresses with DIP
switches.
P
Program ID
An identifier stored in the LCI-C Neuron processor that
identifies the application program that is running. All
controllers with the same Program ID have the same
network variable list.
R
Rover service tool
A Trane software program used as a service tool to
configure Trane LonTalk controllers, flash download
application software, make LonTalk bindings between
network variables, and otherwise install devices on a
LonTalk network. Rover can also be described as a LonTalk
network management tool.
S
SCPT
Acronym for standard configuration parameter type. A pre-
defined structure for communicating configuration
information.
SNVT
Acronym for standard network variable type. See network
variable type.
applicationsystem integration
Generally, the ability for products designed independently
to communicate with each other by using the same
communications protocol. Specifically in relation to Trane
products, the ability for them to monitor and/or control
another vendor’s equipment by using an open, standard
protocol.
T
Tracer UC800 controller
Name of a Trane chiller controller. The Tracer UC800 does
not indicate a particular kind of chiller.
Trane Chiller Extension
The network variables that Trane provides in addition to
the network variables provided by the LonMark Chiller
Functional Profile, 8040 Version 1. (Not all network
variables in the Trane Chiller Extension are available for
every chiller type.)
U
UCPT
Acronym for user-defined configuration parameter type. A
pre-defined structure for communicating configuration
information.
UNVT
Acronym for user-defined network variable type. See
network variable type.
