Mitsubishi MELSEC System Q Manual page 33

The MELSEC System Q
b Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU and Q25HCPU:
Data
Program
Parameters
Intelligent func-
tion module
parameters
Device comment
Device initial
value
File register
Local devices
Debugging data
Failure history
Data file written
by a FWRITE
instruction
b
= Storage is possible
= Storage is not possible
A program stored in the standard ROM or memory card (RAM or ROM) is transferred to the
program memory at power-on and executed in the program memory. Hence, if the program is
stored in the standard ROM or memory card (RAM or ROM), the program memory needs suffi-
cient free space to accept that program.
For use of the debugging data for trace function, a failure history or a general-purpose file, the
memory card must be loaded.
Overview of the data that can be stored
– Program
Ladder, list or SFC sequence program file. When running multiple programs, multiple pro-
gram files are also stored in memory.
– Parameters
File storing PLC parameters and network parameters set during programming.
– Special function module parameter
Parameter file set using the GX Configurator. This file does not exist if you do not use the
setting made with the GX Configurator.
– Device comment
File of device comments annotated to each device of the CPU. This file does not exist if
device comments are not created.
– Device initial value
List of values given to devices in the CPU module at power-on. This file does not exist if
device initial values are not used.
– File Register
File register (R, ZR) file. Setting different file names allows multiple file register files to be
stored. Note that file registers can be stored in a ROM memory card (drive 2) but not in an
ATA card (Q2MEM-8MBA/16MBA/32MBA). The file registers stored in a flash memory
card allow read only in the program and do not allow data changes in the program.
– Local devices
Local devices are devices exclusively used with the corresponding programs in the pres-
MELSEC System Q Beginners Manual
Built-in memory
Program
RAM
memory
(Drive 3)
(Drive 0)
b
b
b
b
b
b
b
Memory cards
ROM RAM Flash ROM
(Drive 4) (Drive 1)
b b
b b
b b
b b
b b
b
b
b
b
The CPU Modules
ATA ROM
(Drive 2) (Drive 2)
b b
b
b
b b
b b
b b
b
b
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