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2.3 Process CPU
2
PERFORMANCE SPECIFICATION
2.3 Process CPU
*1 : The unit of the file size stored in the memory area varies depending on the CPU module. For the details, refer to the manual below.
( Section 5.4.4)
*2 : The maximum number of executable sequence steps is as shown below.(Program capacity) - (File header size (default: 34 steps))
For the details, refer to the manual below.
( Refer to CHAPTER 5 for details of the program capacity and file.)
*3 : The CPU shared memory is not latched. ( QCPU User's Manual (Multiple CPU System)
The CPU shared memory is cleared by turning on the PLC or resetting the CPU module.
Table2.3 Performance Specifications
Item
Process CPU
Q02PHCPU Q06PHCPU Q12PHCPU Q25PHCPU
Control method
Sequence program control method
(Direct access I/O is available by specifying direct access I/O (DX , DY ))
I/O control mode Refresh mode
Program language
Sequence control
language
Relay symbol language, logic symbolic language, MELSAP3 (SFC),
MELSAP-L, function block and structured text (ST)
Process control language FBD for process control (Programming by PX Developer)
Processing speed
(sequence instruction)
LD X0 34ns
MOV D0 D1 102ns
Processing speed
(redundant function)
Tracking execution time
(extended scan time)
----
Constant scan
(Function for keeping regular scan time)
0.5 to 2000ms (Setting available in 0.5ms unit.) (Setting by parameters)
Program capacity
*1, *2
28k steps
(112k bytes)
60k steps
(240k bytes)
124k steps
(496k bytes)
252k steps
(1008k bytes)
Memory capacity
*1
Program memory
(drive 0)
112k bytes 240k bytes 496k bytes 1008k bytes
Memory card (RAM)
(drive 1)
Capacity of the installed memory card (2M bytes max.)
Memory card (ROM)
(drive 2)
Capacity of the installed memory card
(Flash card: 4M bytes max., ATA card: 32M bytes max.)
Standard RAM
(drive 3)
128k bytes 256k bytes
Standard ROM
(drive 4)
112k bytes 240k bytes 496k bytes 1008k bytes
CPU shared memory
*3
8k bytes
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