System Memory Settings; Relevant Variables - Mitsubishi Electric MELSEC iQ-R Series User Manual

3.3

System Memory Settings

This section describes setting methods of memory size used in the add-on library in the system memory (RAM) and the
system memory (backup RAM).
System memory
System memory (RAM)
Add-on A area
Add-on B area Variable
area
Add-on C area

Relevant variables

The following shows common variables in each add-on library.
Available variables other than the following are different depending on the add-on library.
Variable/Structure name
System.PrConst.
Addon_AddonLibraryName
LabelMemorySize
System.Md.
Addon_AddonLibraryName
LabelMemoryFreeSize
MemoryUsage
MemorySize
ADDON_PARAM
RamSizeMax
BackupRamSizeMax
ADDON_MONI
RamUsage
RamMaxUsage
BackupRamUsage
BackupRamMaxUsage
System memory (back up RAM)
Add-on A area
Add-on B area
Add-on C area
Name
AddOn <AddonLibraryName>
parameter
Label memory size
AddOn <AddonLibraryName> monitor
Label memory free size
System memory usage
System memory size
Maximum RAM size
Maximum backup RAM size
RAM usage
RAM usage maximum
Backup RAM usage
Backup RAM usage maximum
Variable
area
Details
ADDON_PARAM structure
Refer to the following for add-on used for <AddonLibraryName>.
Page 577 System variables
Stores the label memory size in K bytes.
ADDON_MONI structure
Refer to the following for add-on used for <AddonLibraryName>.
Page 577 System variables
Stores label memory free size in K bytes.
ADDON_MON structure
ADDON_PARAM structure
Specifies the maximum amount of system memory (RAM) used in the add-
on in K bytes.
For details of the setting method, refer to the following.
Page 98 System memory (RAM) usage setting method
Specifies the maximum amount of system memory (backup RAM) used in
the add-on in K bytes.
For details of the setting method, refer to the following.
Page 99 System memory (backup RAM) usage setting method
Stores the current amount of system memory (RAM) used in the add-on bin
K bytes.
Stores the maximum amount of system memory (RAM) used in the add-on
in K bytes.
Stores the current amount of system memory (backup RAM) used in the
add-on in K bytes.
Stores the maximum amount of system memory (backup RAM) used in the
add-on in K bytes.
3 BASIC FUNCTIONS
3.3 System Memory Settings
3
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