Mitsubishi 00JCPU User Manual

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CHAPTER5 MEMORIES AND FILES USED FOR CPU MODULE
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5.4 File Operations by GX Developer and Handling Precautions 5.4.4 Units of file sizes
5.4.4 Units of file sizes
(1) Definition
When a file is written to the memory area, the unit of the stored file depends on the CPU module and memory
area to be written. This unit is referred to as a file size unit.
(a) File size unit for each memory area
The following table shows the file size unit depending on the CPU module and memory area to be written.
*1: The file size unit of the Flash card is applied when a file is written to the Flash card by [Online] [Write the program
memory to ROM] in GX Developer. ( Section 5.2.6)
*2: For the High Performance model QCPU, if the serial number (first five digits) is "04121" or earlier, the file size unit will be
1024 steps/4096 bytes.
*3: For the Q12HCPU or Q25HCPU, if the serial number (first five digits) is "02091" or earlier, the file size unit will be 512
bytes.
*4: For the Process CPU, if the serial number (first five digits) is "07031" or earlier, the file size unit will be 1024 steps/4096
bytes.
(b) File size unit for each memory card
*1: The file size unit of the Flash card is applied when:
• a file is written to the Flash card by [Online] [Write to PLC (Flash ROM)] in GX Developer, or
( Section 5.2.6(1)(b))
• a file is written to the Flash card by GX Developer without accessing the CPU module.
( Section 5.2.6)
Table5.13 File size unit for each CPU module and memory area
CPU module model
Memory area
Program memory, standard ROM, Flash card
*1
Standard RAM
Q00JCPU
1 step/4 bytes
-
Q00CPU, Q01CPU 4 bytes
Q02CPU, Q02HCPU, Q06HCPU
128 steps/512 bytes
*2
512 bytes
Q12HCPU
256 steps/1024 bytes
*2
1024 bytes
*3
Q25HCPU
512 steps/2048 bytes
*2
Q02PHCPU, Q06PHCPU 128 steps/512 bytes 512 bytes
Q12PHCPU
256 steps/1024 bytes
*4
1024 bytes
Q25PHCPU
512 steps/2048 bytes
*4
Q12PRHCPU 256 steps/1024 bytes
Q25PRHCPU 512 steps/2048 bytes
Table5.14 File size unit for each memory card
Type Memory card model
File size unit
(cluster size)
SRAM card
Q2MEM-1MBS 512 bytes
Q2MEM-2MBS 1024 bytes
Flash card
*1
Q2MEM-2MBF 1024 bytes
Q2MEM-4MBF 1024 bytes
ATA card
Q2MEM-8MBA 4096 bytes
Q2MEM-16MBA 4096 bytes
Q2MEM-32MBA 2048 bytes

Mitsubishi 00JCPU Specifications

General

Brand	Mitsubishi
Model	00JCPU
Category	Controller
Language	English