4 HARDWARE SPECIFICATION OF THE CPU MODULE

MELSEC-Q

4 HARDWARE SPECIFICATION OF THE CPU MODULE

4.1 Performance Specification

The table below shows the performance specifications of the CPU module.

Performance Specifications

 

 

 

Item

 

 

 

 

 

 

Model

 

 

Remark

 

 

 

 

 

Q02CPU

Q02HCPU

Q06HCPU

 

Q12HCPU

Q25HCPU

 

 

 

 

 

 

 

 

 

 

Control method

 

 

 

 

 

Repetitive operation of stored program

 

 

 

 

I/O control mode

 

 

 

 

 

 

Refresh mode

 

 

Direct I/O is possible by

 

 

 

 

 

 

 

 

 

 

direct I/O specification

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(DX , DY )

 

 

Programming language

 

 

 

Relay symbol language, logic symbolic language,

——

 

 

(Sequence control dedicated language)

 

MELSAP3 (SFC), MELSAP-L, Function block

 

 

 

 

 

 

Processing speed

 

LD X0

0.079

s

 

0.034

s

 

——

4

 

(Sequence instruction)

MOV D0 D1

0.237

s

 

0.102

s

 

——

 

Total number of instructions

 

 

 

 

 

360

 

 

 

——

 

 

 

(excluding intelligent function module dedicated instructions)

 

 

 

 

 

 

 

 

 

Constant scan

 

 

 

 

 

 

 

 

 

 

 

Set parameter values to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Function for setting the scan timer to fixed

0.5 to 2000 ms (configurable in increments of 0.5 ms)

 

 

specify

 

 

settings)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Program 2

Program memory

 

28k step

 

60k step

 

124k step

252k step

——

 

 

capacity

(Drive 0)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Program memory

 

112 kbyte

 

240 kbyte

 

496 kbyte

1008 kbyte

——

 

 

 

(Drive 0)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Memory card (RAM)

 

Capacity of loading memory cards(2Mbyte max.)

 

 

 

 

(Drive 1)

 

 

 

For memory capacity,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Memory card (ROM)

 

 

 

Installed memory card capacity

 

refer to Section 7.1.

 

 

Memory

(Drive 2)

 

 

(Flash card: 4 Mbyte max., ATA card: 32 Mbyte max.)

 

 

 

capacity

Standard RAM

64kbyte

 

128kbyte 5

 

256kbyte 3

——

 

 

 

(Drive 3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard ROM

 

112 kbyte

 

240 kbyte

 

496 kbyte

1008 kbyte

——

 

 

 

(Drive 4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU shared memory

 

 

 

 

8 kbyte

 

 

——

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Program memory

 

28

 

60

 

124

252 1

——

 

 

 

Memory card (RAM)

 

 

 

256

 

 

 

——

 

 

Maximum number

Memory

 

Flash card

 

 

 

288

 

 

 

——

 

 

card

 

ATA card

 

 

 

512

 

 

 

——

 

 

of stored files

(ROM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard RAM

 

 

 

2

 

 

 

Only one file register and

 

 

 

 

 

 

 

 

 

one local device

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard ROM

 

28

 

60

 

124

252

——

 

 

Standard ROM number of writings

 

 

 

Max. 100000 times

 

——

 

 

Number of I/O device points

 

 

 

 

 

8192 points (X/Y0 to 1FFF)

 

Number of devices

 

 

 

 

 

 

 

 

usable on program

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of occupied I/O points

 

 

 

4096 points (X/Y0 to FFF)

 

Number of points

 

 

 

 

 

 

accesible to actual I/O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

modules

1:124 is the maximum number of programs that can be executed on High Performance model QCPU.

2: The maximum number of sequence steps that can be executed for one program by the High Performance model QCPU with the parameters stored in another drive is calculated with the following expression.

(Program size) - (File header size (default: 34 steps))

Refer to the High Performance model QCPU User's Manual (Function Explanation, Program Fundamentals) for details on the program size and file.

3: The memory capacity of the Q12HCPU or Q25HCPU whose first five digits of serial No. are "02091" or earlier is 64K bytes. (Refer to Section 2.3 for the way to confirm the serial No.)

4:The CPU shared memory is not latched. The CPU shared memory is cleared when the power is turned on to the PLC or when the CPU module is reset.

5:The memory capacity of the Q02HCPU or Q06HCPU whose first five digits of serial No. are "04011" or earlier is 64K bytes. (Refer to Section 2.3 for the way to confirm the serial No.)

4 - 1

4 - 1