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Comparison Of Base Mounting Area; Comparison Of A/qna (large Type) Series And Q Series Base Unit Mounting Area - Mitsubishi Electric Artisan MELSEC-Q Series Manual

General-purpose programmable controllers, large/small.
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1.1 Comparison of A/QnA (Large Type) Series and Q Series base unit mounting area

1.

Comparison of base mounting area

1.1 Comparison of A/QnA (Large Type) Series and Q Series base unit mounting area
When upgrading existing A/QnA systems, there are cases where the number of modules increases due to
specification differences. For instance, to replace an A/QnA (Large Type) Series 32-point terminal block type I/O
module, two Q Series 16-point terminal block type I/O modules are used. Despite increase in the number of I/O
slots and extension base stages, the Q Series footprint is smaller than that of the A/QnA (Large Type) Series.
The following example shows a comparison of the mounting areas when the A/QnA (Large Type) Series system
is upgraded to the Q Series.
Solution and Benefit
When replacing each 32-point terminal block type module with two 16-point terminal block type
modules, an additional extension base unit is required due to an increase in the number of modules.
However, the Q Series system fits inside the existing control panel because it is compact in size.
(1) When the A/QnA (Large Type) Series main base unit A35B and the A65B extension base unit are
replaced
80
250
50
80
250
50
Tip
The A/QnA (Large Type) Series main base unit and extension base unit differ in size:
• A35B main base unit: 382 mm (W) x 250 mm (H)
• A65B extension base unit: 352 mm (W) x 250 mm (H)
Whereas the Q Series main base unit and extension base unit are the same size:
• Q38B main base unit/Q68B extension base unit: 328 mm (W) x 98 mm (H)
Even with the extra I/O slots and base units, the base unit installation area for Q Series is smaller than that for
A/QnA (Large Type) Series.
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382
A35B
A65B
352
Replace
20
24
Q38B/Q68B
30
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
98
3
3
3
3
3
4
4
4
4
4
5
5
5
5
5
6
6
6
6
6
7
7
7
7
7
8
8
8
8
8
9
9
9
9
9
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
D
D
D
D
D
E
E
E
E
E
F
F
F
F
F
40
30
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
98
3
3
3
3
3
4
4
4
4
4
5
5
5
5
5
6
6
6
6
6
7
7
7
7
7
8
8
8
8
8
9
9
9
9
9
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
D
D
D
D
D
E
E
E
E
E
F
F
F
F
F
40
30
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
98
3
3
3
3
3
4
4
4
4
4
5
5
5
5
5
6
6
6
6
6
7
7
7
7
7
8
8
8
8
8
9
9
9
9
9
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
D
D
D
D
D
E
E
E
E
E
F
F
F
F
F
40
328
5
Downsized
Q38B/Q68B
A35B
Base unit size comparsion
Unit: mm

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