Mitsubishi Q2ACPU User Manual page 36

3. SYSTEM CONFIGURATION
System configuration
Maximum number of
extension stages
Maximum number of I/O
modules
Maximum number of I/O
points
Main base unit model
name
Extension base unit
model name
Extension cable model
name
(1)
(2)
Precautions
(3)
(4)
(1)
(2)
I/O number assignment
(3)
(4)
(5)
(c) Q3A/Q4ACPU system
Main base unit (A38B)
C
Extension
P
cable
U
A58B extension base unit
1st extension
stage
8 9
80 90
to to to to
8F 9F
A55B extension base unit
2nd extension
stage
16 17 18 19 20 (21)(22) (23)
100 110
to to to to
10F 11F
A68B extension base unit
3rd extension
stage
24
180
to to to to
18F
4th extension
stage
32
200
to to to to
20F
It is not possible to connect an extension base unit to an A32B main base unit. For an extension base, use A32B-S1.
When extension base unit A52B, A55B, A58B is used, 5VDC power supply is supplied from the power supply module of
the main base. Before use, refer to Section 17.3 and examine if it can be used.
The overall distance of the extension cable must be 6.6m (21.65ft.) or shorter.
When using the extension cable, do not tie it with the main circuit cables, which has high voltage, large current, or install
them close to each other.
I/O numbers are allocated in accordance with the order of the numbers set for the extension base stages, regardless of
the order in which the extension cables are connected.
Assign I/O numbers as if both main base unit and extension base unit have 8 slots each.
Consequently, allocations of 16 points per slot are made for the parts of the system configuration drawing indicated with
dotted lines.
16 points are assigned to an empty slot.
Extension stage numbers do not need to be sequential, but any extension stage omitted from the system will occupy 8
(slots) 16 I/O points.
With regard to items (2) to (4) above, the I/O assignment can be changed by setting I/O assignments in the
parameters.(Refer to Section 5.3)
0 1 2 3 4 5 6 7
00 10 20 30 40 50 60 70
to to to to to to to to
0F 1F 2F 3F 4F 5F 6F 7F
* An example when the 16-point module
10 11 12 13 14 15
A0 B0 C0 D0 E0
F0
to to to to
AF BF CF DF EF FF
5th extension
stage
120 130 140 150 160 170
to to to to
12F 13F 14F 15F 16F 17F
6th extension
stage
25 26 27 28 29 30 31
190 1A0 1B0 1C0 1D0 1E0 1F0
to to to to
19F 1AF 1BF 1CF 1DF 1EF 1FF
7th extension
stage
35
33 34 36 37 38 39
250
210 220 230 240 260 270
to to to to
21F 22F 23F 24F 25F 26F 27F
7th extension stage
64 modules
Q3A 2048 points/Q4A 4096 points
A32B, A35B, A38B, A38HB, A38HBEU
A62B, A65B, A68B, A52B, A55B, A58B
AC06B, AC12B, AC30B
3 - 5
Slot No.
is installed to each slot is shown.
A65B extension base unit
(45)(46)
40 41 42 43 44
280 290 2B0 2C0
2A0 2D0
to to to to to to to
29F 2AF 2BF 2CF
28F 2DF
48 49 50 51 52 53
300 310 320 330 340 350
to to to to to to to
30F 31F 32F 33F 34F 35F
56 57 58 59 60 61
380 390 3A0 3B0 3C0 3D0
to to to to to to to
38F 39F 3AF 3BF 3CF 3DF
(47)
2E0 2F0
to
2EF 2FF
54 55
360 370
to
36F 37F
62 63
3E0 3F0
to
3EF 3FF