Mitsubishi Electric MELSEC iQ-R Series User Manual page 145

Process cpu module

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Table of Contents

• 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 ( Page 74 Hardware specifications). 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.

Latch label area

Local device area

File storage area

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

• R08PCPU: 50K words

• R16PCPU: 60K words

• R32PCPU: 70K words

• R120PCPU: 90K words

The setting range of the capacity of each area

The following tables list the setting range of the capacity of each area on the device/label memory.

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. ( Page 78 Extended SRAM Cassette)

*1 The rest of other areas are automatically set as the capacity of the local device area.

10 MEMORY CONFIGURATION OF THE CPU MODULE

10.1 Memory Configuration

Troubleshooting