Mitsubishi Electric MELSEC-Q Series - Page 40

2 REPLACEMENT OF CPU MODULE
2 - 10
: Available : Although available, specifications such as setting method partially differ. : Not available
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
Number of device
points (point)
Input device (X)
*12
2048 2048 8192 8192 8192 8192
Output device (Y)
*12
2048 2048 8192 8192 8192 8192
Internal relay (M)
Tot al
2048
Tot al
2048
Tot al
8192
Tot al
8192
8192 8192
Latch relay (L) 8192 8192
steps relay (S)
8192
*13
8192
*13
Annunciator (F) 256 256 2048 2048 2048 2048
Edge relay (V) × × × × 2048 2048
Link relay (B) 1024 1024
8192 8192
8192 8192
A2AS: 4096
Timer (T) 256 256 2048 (default: 256) 2048 2048
Counter (C) 256 256 2048 (default: 256) 1024 1024
Data register (D) 1024 1024
8192 8192
12288 12288
A2AS: 6144
Link register (W) 1024 1024
8192 8192
8192 8192
A2AS: 4096
File register
(R) 8192 8192 8192 8192
32768
*14
32768
*14
(ZR) × × × × Max. 1018K Max. 1018K
Accumulator (A) 2 2 2 2 × ×
Index register
(Z) 1 1 7 7 16 16
(V)1177××
Nesting (N) 8 8 8 8 15 15
Pointer (P) 256 256 256 256 4096 4096
Interrupt pointer (I) 323232324848
Special relay (M/SM) 256 256 256 256 2048 2048
Special register (D/SD) 256 256 256 256 2048 2048
Special link relay (SB) × × × × 2048 2048
Special link register (SW) × × × × 2048 2048
Function input (FX) × × × × 16 16
Function output (FY) × × × × 16 16
Function register (FD)××××55
Number of
comment points
*16
Comment points 3648 3648
3648
(-S1: 3968)
4032
Max. approx.50K
*14*15
Max. approx.50K
*14*15
Extended comment × ×
×
(-S1: 3968)
3968 × ×
Self-diagnostics
Watchdog timer (WDT),
Memory error detection,
CPU error detection,
Battery error detection, etc.

Operation mode at
error occurrence
Stop/Continue setting 
Output mode
switching at
changing from
STOP to RUN
Re-output operation status
before STOP/Selection of
output after operation
execution
