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MELSEC-
A
6 EXCHANGING DATA WITH AN EXTERNAL DEVICE
2) Program to change to bank 0
Specify partial
refresh
Specify bank 0
Execute partial
refresh
3) Program to change to bank 1
Specify partial
refresh
Specif
y
bank 1
Execute partial
refresh
(b) When using dedicated commands (RIWT) with QCPU (Q
mode) / QnACPU
When using dedicated commands (RIWT/RISEND), 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.
Set data transmission flag
Call transmission data
setting program
Reset data transmission
flag
Set transmission
request (RYn0)
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 normal
Transmission execution
Initialization
complete