Mazda 2009 RX-8, Особенности сервиса, Страница: 289 / 299

CONTROL SYSTEM
09-40–4
CONTROLLER AREA NETWORK (CAN) SYSTEM CONSTRUCTION/OPERATION
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CAN system
!
Transmission of information to and from modules is done using time-division multiplexing.
!
The signals transmitted from a single module are communicated to all other modules via the twisted pair wiring
harnesses. When each module receives a relevant signal, output is performed based on the signal.
Time-Division Multiplexing
!
Control signals are converted to data composed of 0s and 1s, and transmitted.
!
By transmitting multiple signals which are divided by time, more information can be transmitted using fewer
wiring harnesses.
Transmission between conventional modules
!
To illuminate 5 individual bulbs, 5 separate communication paths from switch to bulb are needed.
!
To illuminate bulbs B and C, it is necessary to connect switches B and C to pass current along the
communication paths.
CONVENTIONAL
SYSTEM
MODULE
MODULE MODULE
CAN SYSTEM
MODULE
MODULE
MODULE
TWISTED PAIR
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A
B
C
D
E
A
B
C
D
E
MODULE MODULE
COMMUNICATION
PATH
TRANSMISSION BETWEEN CONVENTIONAL MODULES
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