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4.1 Cyclic Transmission Function
4.1.1 1 : n communication (B/W communication)
4
FUNCTIONS
(3) B/W communication example
The following illustrates an example where link relay (B) data are transferred between
the master station and a Q series local station (L1).
Figure 4.6 B/W communication example
END processing
Program for data link
CPU module
Link
module
B0
B1FF
BFF
B100
B0
Send
request
CPU module
Local module
buffer memory
B0
B1FF
BFF
B100
B100
Send
request
B0
B100
Link refresh
Cyclic transmission
M
L1
M
L1
M
L1
M
L1
250
H
25FH
260H
26FH
Program for refresh
END processing
Program for data link
Master station Q series local station