Rockwell Automation 22-COMM-L LonWorks Adapter User Manual

Page 68

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Glossary

L

Logic Command/Status

The Logic Command is used to control the PowerFlex drive (for
example, start, stop, direction). It consists of one 16-bit word of output to
the adapter from the network. The definitions of the bits in this word
depend on the drive.

The Logic Status is used to monitor the PowerFlex drive (for example,
operating state, motor direction). It consists of one 16-bit word of input
from the adapter to the network. The definitions of the bits in this word
depend on the drive.

LON

An acronym for local operating network, which consists of intelligent
devices, or nodes, that are connected by one or more communications
media and that communicate with one another using a common protocol.

LonMaker

Software

Windows

-based software package for designing, documenting,

installing, and maintaining multi-vendor, open, interoperable LonWorks
networks.

LonWorks

Device

Hardware and software than runs an application and communicates with
other devices using the LonWorks protocol. The LonWorks device may
optionally interface with input/output hardware. It includes at least one
processor and a LonWorks transceiver, and typically has a Neuron Chip.

LonWorks

Network

Intelligent devices that communicate with each other using the
LonWorks protocol over one or more communications channels.

LonWorks

Protocol

The open control networking protocol designed for applications
involving sense, monitor, control, and identification functions. It is also
known as EIA 709.1 Control Networking Standard and as LonTalk

protocol.

N

Network Variable

A data item that a particular device application program expects to get
from other devices on a network (a Network Variable Input) or expects to
make available to other devices on a network (a Network Variable
Output). Examples are a temperature, switch value, and actuator position
setting.

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