YOKOGAWA F3LR02-0N, User Manual

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B3-9
IM 34M06H45-01E 7th Edition : Aug.30, 2019-00
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Star Configuration
A star configuration consists of one-to-one connections between the master station and
each substation. In this configuration, a cable discontinuity, substation failure or
substation shutdown will not affect communications with other substations.
Master station
Unit 0
Slots 1 to 6
u0-s1
(6)
u0-s1
(5)
Fiber-optic Cable
Fiber-optic Cable
u1-s1
(6)
u2-s1
(6)
F3LR01-0N
FB0354.VSD
F3LR02-0N
Power
supply
module
Unused port
Power
supply
module
Power
supply
module
Power
supply
module
Fiber-optic Cable
Unused port
Fiber-optic cable
Substation
Unit 1
Slots 1 to 6
Substation
Unit 2
Slots 1 to 6
Power
supply
module
Substation
Unit 3
Slots 1 to 6
Substation
Unit 4
Slots 1 to 6
Figure B3.6 Star Configuration
Note
- Using Fiber-optic FA-bus modules (F3LR01-0N) together with Fiber-optic FA-bus
Type 2 modules (F3LR02-0N) is allowed in a star configuration.
- In a star connection, port 1 or port 2 of the master station must be connected to port
1 of the each substation. Otherwise, the system will not operate normally.