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MELSEC-Q
7 MEMORY CONFIGURATION AND DATA PROCESS
7.2 Data transmission process
The data is transmitted between the QD75MH memories with steps (1) to (10) shown
below.
The data transmission patterns numbered (1) to (10) on the right page correspond to
the numbers (1) to (10) on the left page.
ROM
(3) PLC READY signal
[Y0] OFF ON
Pr.10
Pr.8
to
Pr.25
Pr.42
(5) Servo amplifier read
Servo amplifer
Pr.7Pr.1
Pr.11 Pr.24
Pr.43 Pr.57
Pr.200
Pr.201
(2) Valid upon execution of
the TO instruction.
For PLC READY signal ON : Valid
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
(1) Power supply ON/
PLC CPU reset
(2) TO command(4) FROM command
QD75MH
PLC CPU
Parameter area (a)
Parameter area (b)
Positioning data area
(No.1 to
600)
Block start data area
(No.7000 to 7004)
Flash ROM
Servo parameter area
(No.30100 to 30804)
Servo parameter area
(No.30100 to 30804)
Parameter area (a)
Parameter area (b)
to
to
to
to
Pr.84
Pr.80 Pr.83
to