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MELSEC-Q
7 MEMORY CONFIGURATION AND DATA PROCESS
7.2 Data transmission process
The data is transmitted between the QD75 memories with steps (1) to (8) shown
below.
The data transmission patterns numbered (1) to (8) on the right page correspond to
the numbers (1) to (8) on the left page.
Parameter area (a)
Parameter area (a)
Parameter area (b)
Positioning data area
(No.1 to
600)
Block start data area
(No.7000 to 7004)
PLC CPU
memo area
Monitor data area
Control data area
Buffer memory
Flash ROM
ROM
(3) PLC READY signal
[Y0] OFF ON
(1) Power supply ON/
PLC CPU reset
(2) TO command(4) FROM command
QD75
Pr.7Pr.1
to
Pr.11
Pr.24
to
Pr.43
Pr.57
to
Parameter area (b)
Pr.10
Pr.8
to
Pr.25
Pr.42
to
PLC CPU
Parameter area (a)
Parameter area (b)
Positioning data area
(No.1 to
600)
Block start data area
(No.7000 to 7004)
Pr.150