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MELSEC-
A
6 EXCHANGING DATA WITH AN EXTERNAL DEVICE
3) Program to change to bank 1
Specify partial
refresh
Specify bank 1
Execute partial
refresh
(b) When using dedicated commands (RIRD) with QCPU (Q
mode) / QnACPU
When using dedicated commands (RIRD/RIRCV), RY(n+1)E and RY(n+1)F
are used with the dedicated commands, so provisions must be made to
prevent the user from rewriting this signal information.
When the QCPU (Q mode) is used, such provisions need not be made.
Refer to section 5.3(8) for details.
R2 normal
Initialization
complete
Set data reception enable
flag
Call reception data size
read program
Reset reception read
complete (RYn2)
Reset reception read
complete (RYn2)
Reset data reception
enable flag
Call reception data read
program
R2 initialization (Refer to section 5.5.2 (4).)
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).)