7 MEMORY CONFIGURATION AND DATA PROCESS
7.1 Configuration and roles of QD75 memory
7.1.1 Configuration and roles of QD75 memory
Memory
configuration
Area that can be directly accessed
with sequence program from PLC
Buffer memory
CPU.
Area for backing up data required
Flash ROM
for positioning.
: 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
The QD75 is configured of the following two memories.
Role
Area configuration
–
–
7 - 2
MELSEC-Q
Not
pos-
sible
Pos-
–
sible