IDEC SX5L Series - Manual (Page 63)

A PPENDIX
A-2 SX5L C OMMUNICATION T ERMINAL U SER ’ S M ANUAL
Glossary
Alias
When binding network variables, binding may not be completed due to the limitations on selector numbers which are auto-
matically assigned by the management tool. Alias is a technique used to virtually divide one network variable into several
variables.
Application program
A program for the application layer in the OSI reference model, written in Neuron C which is derived from ANSI C. Since
IDEC has created and installed an application program into the SX5L, users do not have to create a user program.
Binding
A task to define a sender and receiver(s) of a network variable.
Commission
A task to identify the L ON W ORKS device by the Neuron ID and write configuration information into the device.
Configuration property
A data value used to determine initial values and parameters, such as maximum value, minimum value, and time, for a par-
ticular L
ON W ORKS device.
Domain ID
The first layer of the device address.
Functional block
A symbolic representation of an individual function to be performed by the application program installed in a L ON W ORKS
device. Every SX5L module contains more than one functional block.
Gateway
A hardware or software provision to connect networks that communicate in different protocols.
LonMaker integration tool
A tool supplied by Echelon to perform network management.
L ON M ARK Interoperability Association (http://www.lonmark.org/)
An organization that was established to promote the easy integration of multi-vendor systems based on L ON W ORKS net-
works using standard tools and components. Today over 300 companies around the world are members of the association,
including device manufacturers, integrators, and end users.
LonTalk protocol
A complete seven-layer protocol in compliance with the Open System Interconnection (OSI) defined by the International
Standard Organization (ISO). Also known as L
ON W ORKS protocol.
L ON W ORKS device
A device in which a Neuron Chip and L ON W ORKS transceiver are installed to communicate with other devices using the
LonTalk protocol.
L ON W ORKS transceiver
A L ON W ORKS transceiver contains an FTT-10A (free topology transceiver).
The FTT-10A transceiver is of a transformer-coupled type and has the following specifications:
Note: The transmission distance is the values when using Level 4 AWG22 cable and proper terminators.
Network management
A task to install network configuration information (addressing and binding) into L ON W ORKS devices. Network manage-
ment must be done when setting up a L ON W ORKS network system.
Name Communication Medium Transmission Speed Transmission Distance (Note)
FTT-10A Twisted-pair cable 78 kbps
Bus topology: 1,400m
Free topology: 500m