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7
I/O NUMBER ASSIGNMENT
7
- 9
7.3 Base Unit Assignment (Base Mode)
(d) For a 12-slot base unit: Twelve slots are occupied.
Main base unit
Q312B
CPU
Power supply
module
Extension base unit
Q612B
12
0
1
2
3
4
5
6
C Controller module
13
14
15
16
17
18
19
20
Figure 7.9 12-slot base units
7
8
9
10
11
Slot number
21
22
23
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