2. Terms and Concepts of communication
2-4
!$!!! -&."0
$!!!($!!!"
2.2.1 How to generate and move LAS
!,!!!(,,%
/. !,($!!!)
"
5. 3 ) ! ! ! !, (
!!!!"
6. ')!,!!!(!!!
!!,$("
@. 0 1,"
2.2.2 How to assign token(Suppose that the Station FMM_01 is LAS)
FMM_01(LAS) FMM_02 FMM_03 FMM_04 FMM_05
Token
transmission
of station
FMM_02
Token
transmission of
station FSM_03
Return of
token
Token transmission of
FMM_01 (LAS station
also transmits its own
FMM 01)
Circulated
Token
Passing
Return of
token
Data transmission
of self station
Use within 8ms
Data transmission of
self station
Use within 8ms
Return of
token
Return of token
Data
transmission
of LAS’s own
station
Use within
8ms
Return of token
Token
transmission of
station FSM_05
Data transmission of
self station
Use within 8ms
Data transmission of
self station
Use within 8ms
Token
transmission of
station FSM_04
A
Token return in each
station is performed to
present LAS station.
2.2 Concept of Fnet communication