Echelon IzoT Commissioning Tool - Manual (Page 376)

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 Control Network 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.
Neuron Firmware
Firmware required to implement the ISO/IEC 14908-1 Control Network Protocol, I/O drivers, and
other system functions on a Smart Transceiver or Neuron Chip. This firmware is contained in the
VERxxx subdirectories of the L
ON W ORKS images folder in files with the name S*.NX*. Other custom
firmware images are available for special purposes. Use of the Neuron Chip firmware is subject to
terms and conditions defined in the NodeBuilder and and the L
ON W ORKS OEM license agreement.
Neuron ID
A 48-bit number assigned to each Neuron Chip at manufacture time. Each Neuron Chip has a unique
Neuron ID, making it like a serial number.
Node Address
A unique 15-bit logical identifier for each device in a domain. The node address consists of two parts:
a 7-bit subnet address and an 8-bit Node ID. The Node ID is unique within the subnet.
Node ID
The third part of the LonTalk addressing hierarchy of domain/subnet/node. At installation time, each
device is assigned a unique node ID within its subnet by the OpenLNS Server.
Node Object
A functional block that monitors the status of all functional blocks in a device and makes the status
information available for monitoring by IzoT Commissioning Tool. A L
ON M ARK -compliant device
that has more than one functional block must have a Node object.
NodeBuilder Tool
A hardware and software platform used to develop applications for Smart Transceivers and Neuron
Chips.
Non-Volatile RAM
Read/write processor memory that does not lose its contents when electrical power is removed. Two
widely used semiconductor technologies are EEPROM (electrically erasable programmable read-only
memory) and flash memory.
NV Selector
A 14-bit number used to identify connected network variables. When placing the network variable in a
connection, the OpenLNS Server connection binder assigns a value representing that connection. All
network variables in a given connection use the same network variable selector. The OpenLNS Server
shares a network variable selector among connections if the connections share one or more network
variables.
360 Appendix B – Glossary