Units Of File Sizes - Mitsubishi Electric melsec q00ujcpu User Manual

5.3.4 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
The following table shows the file size unit depending on the CPU module and memory area to be written.
CPU module model
Q00UJCPU
Q00UCPU, Q01UCPU
Q02UCPU, Q03UDCPU,
Q04UDHCPU,Q06UDHCPU,
Q03UDECPU, Q04UDEHCPU,
Q06UDEHCPU
Q10UDHCPU,Q10UDEHCPU,Q13U
DHCPU,Q13UDEHCPU
Q20UDHCPU,Q20UDEHCPU,Q26U
DHCPU,Q26UDEHCPU
*1: The file size unit of the Flash card is applied when a file is written to the Flash card by [Online]
memory to ROM] in GX Developer. (
(b) File size unit for each memory card
SRAM card
Flash card
*1: The file size unit of the Flash card is applied when:
•
file is written to the Flash card by [Online]
(
•
file is written to the Flash card by GX Developer without accessing the CPU module
5 - 36
for each memory area
Table5.9 File size unit for each CPU module and memory area
Table5.10 File size unit for each memory card
Type
*1
ATA card
Section 5.1.7(1)(b))
Memory area
Program memory, standard ROM, Flash card
Program memory: 1 step/4 bytes
Standard ROM: 64 steps/256 bytes
Program memory: 1 step/4 bytes
Standard ROM: 128 steps/512 bytes
Program memory: 1 step/4 bytes
Standard ROM, Flash card: 128 steps/512 bytes
Program memory: 1 step/4 bytes
Standard ROM: 256 steps/1024 bytes
Flash card: 128 steps/512 bytes
Program memory: 1 step/4 bytes
Standard ROM: 512 steps/2048 bytes
Flash card: 128 steps/512 bytes
Section 5.1.7(1)(a))
Memory card model
Q2MEM-1MBS
Q2MEM-2MBS
Q3MEM-4MBS
Q3MEM-8MBS
Q2MEM-2MBF
Q2MEM-4MBF
Q2MEM-8MBA
Q2MEM-16MBA
Q2MEM-32MBA
[Write to PLC (Flash ROM)] in GX Developer.
*1
Standard RAM
-
512 bytes
[Write the program
File size unit
(cluster size)
512 bytes
1024 bytes
1024 bytes
4096 bytes
1024 bytes
1024 bytes
4096 bytes
4096 bytes
2048 bytes