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3 CPU MODULE MEMORY CONFIGURATION
3.1 Memory Configuration
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3 CPU MODULE MEMORY CONFIGURATION
3.1 Memory Configuration
CPU module memory is explained below.
Memory configuration
The configuration of CPU module memory is explained below.
Data memory
The following files are stored in data memory.
Device/label memory
Device/label memory has the following areas.
Memory type Application
CPU built-in memory Data memory The following files are stored in this memory:
• Program files, FB files
• Restored information files
• Parameter files
• Files that contain device comments, etc.
Device/label memory Data areas for internal devices/labels, etc. are located in this memory.
SD memory card This is for storing files that contain device comments, etc. and folders and files that are created
by SD memory card functions.
Category File type Max. number of files Storage area size Remarks
Program Program file 32 1 Mbytes
FB files 16 (Up to 15 for user)
Restored information Restored information files 48 1 Mbytes
Parameters Parameter files common to system 1 1 Mbytes
CPU parameter file 1
Module parameter file 1
Remote password 1
Global label setting file 1
Module extension parameter (for protocol setting) 2
Device initial values file 1
Comments Device comment file 1 2 Mbytes
Area Storage area size Application
Device/label memory (standard) 96 Kbytes R, W, SW, labels, and latch labels can be placed in this memory in variable lengths.
R and W can be backed up in the event of a power interruption only when the optional battery
is installed. Also, latch label capacity can be increased when the battery is installed.
Device/label memory (fast) 24 Kbytes Bit devices, T, ST, C, LC, D, Z, LZ, labels, and latch labels can be placed in this memory in
variable lengths.
For saving device/label memory 25 Kbytes This memory is for saving latch devices and devices in fast area that require a latch in the
event of a power interruption.