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MELSEC-
A
6 EXCHANGING DATA WITH AN EXTERNAL DEVICE
(b) When using the dedicated command (RIFR) with the QCPU (Q
mode) / QnACPU
R2 initialization (Refer to section 5.5.1 (4).)
R2 normal
Set reception read
complete (RYn2)
Set the data reception
enable flag
Read the reception data
size
Read the reception data
Reset reception read
complete (RYn2)
Reset the data reception
enable flag
Initialization
complete
Master station initialization (parameter setting, data link setting) (Refer to section 5.4.)
Reading of remote input (RX) (Refer to section 5.3 (2).)
Confirmation of R2 data link status (Refer to section 5.3 (3).)
R2 error processing (Refer to section 5.3 (7).)
Writing of remote output (RY) (Refer to section 5.3 (8).)