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6 EXCHANGING DATA WITH AN EXTERNAL DEVICE
Master station initialization (parameter setting, data link setting) (Refer to section 5.4.)
Confirmation of R2 data link status (Refer to section 5.3 (3).)
In itia liz a tio n
R2 normal
c o m p le te
(b) When using the dedicated command (RITO) with the QCPU
(Q mode) / QnACPU
Reading of remote input (RX) (Refer to section 5.3 (2).)
R2 initialization (Refer to section 5.5.1 (4).)
Transmission execution
R2 error processing (Refer to section 5.3 (7).)
Writing of remote output (RY) (Refer to section 5.3 (8).)
6 - 13
MELSEC-A
Set data transmission flag
Set transmission data size
Set transmission data
(A (41
), B (42
))
H
H
Set transmission data
(C (43
), D (44
))
H
H
Set transmission data
(E (45
), F (46
))
H
H
Store transmission data
in automatic update buffer
Set transmission request
(RYn0)
Reset transmission
request (RYn0)
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