Data Transmission Process - Mitsubishi Electric MELSEC-Q QD75M User Manual

7 MEMORY CONFIGURATION AND DATA PROCESS

7.2 Data transmission process

(1) Power supply ON/
PLC CPU reset
Flash ROM
Parameter area (a)
Parameter area (b)
Positioning data area
(No.1 to 600)
Block start data area
(No.7000 to 7004)
Servo parameter area
(No.30100 to 30499)
The data is transmitted between the QD75 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.
(4) FROM command
Positioning data area
Block start data area
Servo parameter area
RO M
(5) Servo amplifier read
PLC CPU
(2) TO command
Buffer memory
Parameter area (a)
Parameter area (b)
(No.1 to 600)
(No.7000 to 7004)
(No.30100 to 30499)
Monitor data area
Control data area
PLC CPU
memo area
Servo amplifer
7 - 8
MELSEC-Q
QD75
(2) Valid upon execution of
the TO instruction.
Parameter area (b)
Pr.8 to Pr.10
Pr.25 Pr.42
to
Pr.201
(3) PLC READY signal
[Y0] OFF ON
For PLC READY signal ON : Valid
Parameter area (a)
Pr.1 Pr.7
to
Pr.11 Pr.24
to
Pr.43 Pr.57
to
Pr.200