
B-64164EN/01 GENERAL 2.OVERVIEW OF FL-net FUNCTIONS
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High reliability
Each node can participate in or be disconnected from the FL-net
at any time. So, the power to each node can be turned on or off
without restraint to provide high maintainability.
The masterless token method allows communication to be
continued without stopping the network by the token
management if a failure occurs in a communication device.
Node #1
Tok en
time-out occurs.
Node #2 Node #3
Node #1 Node #2 Node #3
Tok en
Node #1
Token
Node #2 Node #3
token is reissued.
Node #4
Low cost
The use of cables for Ethernet, which is now widespread in the
OA field, can reduce the cost of communication devices such as
transceivers and hubs.
High maintainability
Various types of management tables are available. The
management tables can be referenced to identify a faulty node
quickly.
NOTE
For information about the FL-net, see the following
home page of the Japan Electrical Manufacturers'
Association:
http://www.jema-net.or.jp/