Mitsubishi Electric MELSEC-Q Series - Comparison of CPU Module Specifications

2 REPLACEMENT OF CPU MODULE
2 - 8
: Available : Although available, specifications such as setting method partially differ. : Not available
*1 I/O control mode (refresh mode or direct mode) is selectable with the I/O control method setting switch.
*2 Only refresh mode is available, but there are instructions and devices that can use direct mode.
*3 Free space areas (except that in the program memory) can be used as user memory.
*4 Memory cassette is for copying programs to the ROM. Use of the cassette does not increase the memory capacity.
*5 Only one memory card can be used.
*6 This number means the number of applicable points for the access to actual I/O modules.
*7 The memory capacity corresponds to the maximum number of steps in a sequence program.
*8 The program capacity is included to a sequence program.
*9 The processing speed of the High-speed Universal model QCPU (QnUDVCPU) is 0.0019µs/step.
*10 The standard ROM capacity of the Q03UDVCPU, Q04UDVCPU, and Q06UDVCPU is 1025.5K bytes.
*11 The High-speed Universal model QCPU (QnUDVCPU) supports an SD memory card.
2.2 Comparison of CPU Module Specifications
Function Description
AnS series QnAS series
A1SJHCPU
A1SJHCPU-S8
A1SHCPU
A2SHCPU
A2SHCPU-S1
A2USCPU
A2ASCPU
A2USCPU-S1
A2ASCPU-S1
A2USHCPU-S1
A2ASCPU-S30
Q2ASCPU
Q2ASCPU-S1
Q2ASHCPU
Q2ASHCPU-S1
Control method
Repetitive operation of
stored program

I/O control
method
Refresh mode/direct
mode

*1

*1

*2

*2

*2

*2
Programming
language
Language dedicated to
sequence control (relay
symbol, logic symbol,
MELSAP language)

Processing speed
Sequence instructions
(µs/steps)
0.33 0.25 0.2
0.09
(A2USHCPU-S1)
0.2
(A2ASCPU-S30)
0.2 0.075
Watchdog timer
(WDT)
Watchdog timer (WDT)
(ms)
10 to 2000 10 to 2000 200 200 10 to 2000 10 to 2000
Memory capacity
User memory built-in
capacity (byte)
64K
(RAM)
*3
64K
(A2SHCPU)
192K
(A2SHCPU-S1)
(RAM)
*3
64K
(-S1: 256K)
(RAM)
*3
256K
(RAM)
*3
Program
memory (RAM)
*7
Program
memory (RAM)
*7
Sold
separately
Memory
cassette
*4
(EEP-ROM)
Memory
cassette
*4
(EEP-ROM)
Memory
cassette
*4
(EEP-ROM)
Memory
cassette
*4
(EEP-ROM)
Memory card
(Max. 2M)
Memory card
(Max. 2M)
Program capacity
Sequence program
(steps)
Max. 8K
Max. 14K
(-S1: 30K)
Max. 14K Max. 30K
Max. 28K
(-S1: 60K)
Max. 28K
(-S1: 60K)
Microcomputer program
(byte)
Max. 14K
*8
Max. 26K
(-S1: 30K)
*8

Number of I/O
points
Number of I/O points
(point)
*6
256 512
512
(-S1: 1024)
1024
512
(-S1:1024)
512
(-S1:1024)