Mitsubishi Electric MELSEC-L LD75D, User Manual

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7.2
Data Transmission Process
The data is transmitted between the LD75 memories with steps (1) to (8) shown below.
The data transmission patterns numbered (1) to (8) of the descriptions correspond to the numbers (1) to (8) of the
illustration.
LD75
Parameter area (a)
Parameter area (a)
Parameter area (b)
Monitor data area
Control data area
Buffer memory
Parameter area (a)
Parameter area (b)
(2) TO instruction (4) FROM instruction
Pr.1 to
Pr.24
to
,
to
Parameter area (b)
to
Pr.25 to
Pr.150
CPU module
Positioning data area
(No.1 to 600)
Block start data area
(No.7000 to 7004)
PLC CPU
memo area
(1) Power supply ON/
CPU module reset
Flash ROM
Positioning data area
(No.1 to 600)
Block start data area
(No.7000 to 7004)
Pr.7
Pr.11
Pr.43
Pr.70
Pr.57
Pr.8 Pr.10
Pr.42
(3) PLC READY signal
[Y0] OFF ON