10-2 Communication method
The host computer communicates with each station number one by one.
① The host computer instructs station number/communication contents/memory address/data
etc. of the communicating station as a "command."
② The "command" receiving station processes this data and returns the result as "response."
(
System example
Master station 00
On the computer link, the host computer can communicate with any required station regardless
of whether it is the master or slave station.
10
)
Slave station 01
(8)
(8)
Command
Response
Slave station 02
(8)
Host computer
10
2
·
Slave station 03
(8)