Echelon LonMaker - Manual (Page 404)

388 Appendix G – Glossary
• Binding network variables to create logical connections between devices.
• Configuring the various LonTalk protocol parameters in each device for the desired features and
performance, including channel bit rate, acknowledgement, authentication, priority service, etc.
Network Image
A device's network address and connection information. For Neuron Chip hosted devices, the device's
network image is stored in EEPROM on the Neuron Chip. For host-based devices, the entire network
image except the network variable configuration table is stored in EEPROM on the Neuron Chip.
Network Interface
A L ON W ORKS device that provides a layer 6 LonTalk interface to an external host computer such as a
computer or a handheld maintenance tool. Network interfaces include IP-852 interfaces (the i.LON 10
Ethernet Adapter, i.LONe3 100 Internet Server with IP-852 routing, i.LON 600 L
ON W ORKS /IP Server,
and the i.LON 1000 Internet Server); U10/U20 USB network interfaces; and PCC-10 and PCLTA-10,
20, and 21 PCI network interfaces
Network Service Device (NSD)
A local or remote client capable of monitoring and controlling the network.
Network Services Interface (NSI)
The component in the LNS architecture that provides the physical connection to the L ON W ORKS
network, manages transactions with the NSS, and provides transparent remote access to the NSS.
Network Services Server (NSS)
The component in the LNS architecture that processes network services, maintains the network
database, and enables and coordinates multiple points of access.
Network Variable (NV)
Network variables allow a device to send and receive data over the network to and from other devices.
Network variables are data items (such as temperature, the state of a switch, or actuator position
setting) that a particular device application program expects to receive from other devices on the
network (an input network variable) or expects to make available to other devices on the network (an
output network variable).
Network Variable/Configuration Property Format
The network variable or configuration property format specifies how the raw data contained within a
network variable or configuration property is translated for display or for use by an application. The
format also specifies how data entered by a user or application is translated to the raw data to be
transmitted on a L
ON W ORKS network.
Network Variable/Configuration Property Types
A network variable or configuration property type defines the structure and contents of the object. A
network variable type can be either a standard network variable type (SNVT) or a user-defined
network variable type (UNVT). A configuration property type can be a standard configuration property
type (SCPT) or a user-defined configuration property type (UCPT)
Neuron Chip
A family of VLSI components that implements the LonTalk protocol. Each Neuron Chip contains
three 8-bit, in-line CPUs, on-board memory, eleven general-purpose I/O pins, and a complete,
interoperable implementation of the LonTalk protocol. The Neuron Chip can manage I/O devices and
execute user-written application code, or alternatively it can be used to create a network interface to a
host processor.