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7 MEMORY CONFIGURATION AND DATA PROCESS
7.1 Configuration and roles of AD75 memory
7.1.1 Configuration and roles of AD75 memory
The AD75 is configured of the following three memories.
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.
•
Area used by system.
OS memory
: 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
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Role
7 - 2
Area configuration
–
–
–
–
–
–
MELSEC-A
Not
pos-
sible
Pos-
–
–
sible
Not
–
–
pos-
sible
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Troubleshooting
