Mitsubishi Electric MELSEC-Q Series - Data Transmission Process

7 - 7
Chapter 7 Memory Configuration and Data Process
7.2 Data transmission process
The data is transmitted between the memories of Simple Motion module with steps (1)
to (10) shown below.
: The data transmission patterns correspond to the numbers (1) to (10) in the
following drawings.
QD77GF
PLC CPU
Servo amplifier
Flash ROM
(1) Power supply ON/
PLC CPU reset
Internal memory
(nonvolatile)
Buffer memory/Internal memory
Parameter area (a)
Parameter area (b)
Positioning data area
(No.1 to
600)
Block start data area
(No.7000 to 7004)
Monitor data area
Control data area
Servo parameter area
(2) TO command
(4) FROM command
(5) Servo amplifier data read
(2) Valid upon execution of
the TO command.
(3) PLC READY signal
[Y0] OFF ON: Valid
Parameter area (c)
CC-Link IE Field
Network area
Servo parameter area
(MR-J4-B use)
(1) Power supply ON/
PLC CPU reset: Valid
Parameter area (c)
Positioning data area
(No.1 to 600)
Block start data area
(No.7000 to 7004)
Parameter area (a)
Parameter area (b)
Parameter area (c)
Parameter area (b)
Parameter area (a)