MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D - Manual (Page 266)

7 - 2
MELSEC-Q
7 MEMORY CONFIGURATION AND DATA PROCESS
7.1 Configuration and roles of QD75 memory
7.1.1 Configuration and roles of QD75 memory
The QD75 is configured of the following two memories.
Area configuration
Memory
configuration
Role
Param
e
ter area
M
onitor data area
C
ontrol data area
Positioning dat
a area
(N
o. 1 to 600)
Block start data
area
(N
o.7000 to 7004)
PL
C CPU m
e
m
o
a
re
a
B
a
ckup
•
Buffer memory
Area that can be directly accessed
with sequence program from PLC
CPU. Not
pos-
sible
•
Flash ROM
Area for backing up data required
for positioning.
– – –
Pos-
sible
: Setting and storage area provided, Not possible: Data is lost when power is turned OFF
– : Setting and storage area not provided, Possible: Data is held even when power is turned OFF