5
MEMORIES AND FILES HANDLED BY CPU MODULE
5.2 High Performance Model QCPU, Process CPU and Redundant CPU
5.2.1 Memory configuration and storable data
5
- 19
1
Overview
2
Performance
Specification
3
Sequence Program
Configuration and
Execution Conditions
4
I/O Nunber Assignment
5
Memories and Files
Handled by CPU Module
6
Functions
7
Communication with
Intelligent Function
Module
8
Parameters
(3) Memory capacities and formatting necessities
Table5.5 indicates the memory capacity and formatting necessity of each memory.
Note2
* 1 : When the memory contents become indefinite in an initial status or due to a dead battery, the
memory is automatically formatted when the PLC is powered off and on, or reset. Before use,
however, be sure to format the memory using GX Developer.
POINT
1. When data are written to each memory, the unit of storage capacity changes
depending on the target CPU module and memory area. ( Section 5.4.4)
2. For memory capacity calculation, 1 step is equal to 4 bytes.
Table5.5 Formatting necessity
Q02CPU Q02HCPU Q06HCPU Q12HCPU Q25HCPU
Q12PH
CPU
Q25PH
CPU
Q12RPH
CPU
Q25PRH
CPU
Formatting
Program
memory
112k
bytes
(28k
steps)
112k
bytes
(28k
steps)
240k
bytes
(60k
steps)
496k
bytes
(124k
steps)
1008k
bytes
(252k
steps)
496k
bytes
(124k
steps)
1008k
bytes
(252k
steps)
496k
bytes
(124k
steps)
1008k
bytes
(252k
steps)
*1
Standard ROM
112k
bytes
112k
bytes
240k
bytes
496k
bytes
1008k
bytes
496k
bytes
1008k
bytes
496k
bytes
1008k
bytes
Unnecessary
Standard RAM
Note5.2
64k bytes 128k bytes 256k bytes *1
Memory
card
SRAM
card
Q2MEM-1MBS : 1M bytes
Q2MEM-2MBS : 2M bytes
Necessary
(Executed by
GX Developer)
Flash
card
Q2MEM-2MBF : 2M bytes
Q2MEM-4MBF : 4M bytes
Unnecessary
ATA
card
Q2MEM-8MBA : 8M bytes
Q2MEM-16MBA : 16M bytes
Q2MEM-32MBA : 32M bytes
Necessary
(Executed by
GX Developer)
Note2
Note5.2
High
Performance
On the High Performance model QCPU, the standard RAM capacity varies depending on the
function improvement. ( Appendix 3.2)
High
Performance
Note5.2
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