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4.1 Performance Specifications
4.1.3 Process CPU
4
HARDWARE SPECIFICATIONS OF THE CPU MODULE
4.1.3 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.
QCPU User's Manual (Function Explanation, Program Fundamentals)
*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.
QCPU User's Manual (Function Explanation, Program Fundamentals)
*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 programmable controller or resetting the CPU module.
Table4.3 Performance Specifications
Item
Process CPU
Q02PHCPU Q06PHCPU Q12PHCPU Q25PHCPU
Control method Sequence program control method
I/O control mode
Refresh mode
(Direct access I/O is available by specifying direct access I/O (DX , DY ).)
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
(112 bytes)
60k steps
(240 bytes)
124k steps
(496 bytes)
252k steps
(1008 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
*3
Standard ROM
(drive 4)
112k bytes 240k bytes 496k bytes 1008k bytes
CPU shared
memory *3
8k bytes