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3 MEMORY CONFIGURATION OF THE CPU MODULE
3.1 Memory Configuration
• Please note that the total of the capacity of each area (including the capacity of the local device area)
should not exceed the capacity of the device/label memory ( MELSEC iQ-R CPU Module User's Manual
(Startup)). The total of the capacity of each area can be checked in "Device/Label Memory Area Capacity
Setting".
• When the capacity of the file storage area is changed, files (file register files) stored in the area are deleted,
and therefore it is required to write file register files. Also, when files are stored in the CPU module, they
must be read to other place before the capacity of the file storage area is changed and written back to the
CPU module after the change.
Default capacity of each area
The default capacity of each area is as follows.
The capacity of the local device area to be set is obtained by deducting the total capacity of the device area,
label area, latch label area, and file storage area from the total capacity of the device/label memory of each
model. However, even if the total capacity of the device area and label area is smaller than the following, the
capacity cannot be assigned to the local device area. (The area which is smaller than the following is the area
not used.)
• R00CPU, R01CPU, R02CPU: 30K words
• R04CPU, R04ENCPU: 40K words
• R08CPU, R08ENCPU, R08PCPU: 50K words
• R16CPU, R16ENCPU, R16PCPU: 60K words
• R32CPU, R32ENCPU, R32PCPU: 70K words
• R120CPU, R120ENCPU, R120PCPU: 90K words
The setting range of the capacity of each area
1The following tables list the setting range of the capacity of each area on the device/label memory.
*
1
The availability of an extended SRAM cassette varies depending on the CPU module used. For the availability, check the
performance specifications of the extended SRAM cassette. ( MELSEC iQ-R CPU Module User's Manual (Startup))
*1 The rest of other areas are automatically set as the capacity of the local device area.
■R00CPU, R01CPU, R02CPU
Item R00CPU,
R01CPU,
R02CPU
R04CPU,
R04ENCPU
R08CPU,
R08ENCPU,
R08PCPU
R16CPU,
R16ENCPU,
R16PCPU
R32CPU,
R32ENCPU,
R32PCPU
R120CPU,
R120ENCPU,
R120PCPU
Device area 30K words 40K words 40K words 40K words 40K words 40K words
Label area 30K words 30K words 40K words 50K words 90K words 110K words
Latch label area 2K words 2K words 2K words 2K words 4K words 4K words
Local device area 0K word 0K word 0K word 0K word 0K word 0K word
File storage area 64K words 128K words 512K words 768K words 1024K words 1536K words
Area Setting range of capacity of each area
Device area 1 to 126K words
Label area 0 to 125K words
Latch label area 0 to 96K words
File storage area 0 to 96K words
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