2
PERFORMANCE SPECIFICATION
2.4 Redundant CPU
2 - 13
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 using
built-in Ethernet ports of
CPU module
8
Communication with
Intelligent Function
Module
*3 : Extended by the upgraded functions of CPU module ( Appendix 4.4)
*4 : The CPU module can execute up to 124 programs. The CPU module cannot execute 125 or more programs.
*5 : The number of points can be changed within the setting range. ( Section 10.2)
Table2.4 Performance Specifications
Item
Redundant CPU
Q12PRHCPU Q25PRHCPU
Max. number
of files stored
Program memory 124
252
*4
Memory card (RAM) 287 (When the Q2MEM-2MBS is used)
Memory card
(ROM)
Flash card 288
ATA card 512
Standard RAM
3
*3
Standard ROM 124 252
No. of times of writing data into the standard
ROM
Max. 100000 times
No. of I/O device points
(No. of points usable on program)
8192 points (X/Y0 to 1FFF)
No. of I/O points (No. of points accessible to
the actual I/O module)
4096 points (X/Y0 to FFF)
No. of device points
Internal relay [M]
*5
8192 points by default (M0 to 8191) (changeable)
Latch relay [L]
*5
8192 points by default (L0 to 8191) (changeable)
Link relay [B]
*5
8192 points by default (B0 to 1FFF) (changeable)
Timer [T]
*5
2048 points by default (T0 to 2047) (sharing of low- and high-speed timers) (changeable)
The low- and high-speed timers are specified by the instructions.
The measurement unit of the low- and high-speed timers is set up by parameters.
(Low-speed timer: 1 to 1000ms, 1ms unit, 100ms by default)
(High-speed timer: 0.1 to 100ms, 0.1ms unit, 10ms by default)
Retentive timer [ST]
*5
0 point by default (sharing of low- and high-speed retentive timers) (changeable)
The low- and high-speed retentive timers are specified by the instructions.
The measurement unit of the low- and high-speed retentive timers is set up by parameters.
(Low-speed retentive timer: 1 to 1000ms, 1ms unit, 100ms by default)
(High-speed retentive timer: 0.1 to 100ms, 0.1ms unit, 10ms by default)
Counter [C]
*5
• Normal counter, 1024 points by default (C0 to 1023) (changeable)
• Interrupt counter: 256 points max. (0 point by default, setting by parameters)
Data register [D]
*5
12288 points by default (D0 to 12287) (changeable)
Link register [W]
*5
8192 points by default (W0 to 1FFF) (changeable)
Annunciator [F]
*5
2048 points by default (F0 to 2047) (changeable)
Edge relay [V]
*5
2048 points by default (V0 to 2047) (changeable)