Mitsubishi MELSEC-Q Series User Manual page 81

2
SYSTEM CONFIGURATION
(b) Outline of system configuration
Main base unit.........32-point modules are mounted on each slot.
Q312DB (12 slots occupied)
Q series power
supply module
Extension base unit .........32-point modules are mounted on each slot.
Q612B (12 slots occupied)
Q55B (5 slots occupied)
Q68B (8 slots occupied)
Q68B (8 slots occupied)
CPU 0 1 2 3 4
CPU module 4
CPU module 3
CPU module 2
CPU module 1
12 13 14 15 16 17 18 19
2nd
extension
24 25 26 27 28
29 30 31 32 33 34 35 36
37 38 39 40 41 42 43 44
* 1: When the Q02UCPU is used as the CPU module 1, up to three CPU
modulescan be mounted. Therefore, the CPU module 4 does not exist.
* 2: When the Q02UCPU is used as the CPU module 1, the number of mountable
modules is 36. Therefore, the module cannot be mounted on slot 36 or later.
When a module is mounted on slot 36 or later, an error "SP.UNIT LAY ERR."
(error code: 2124) occurs.
* 3: When the Q02UCPU is used as the CPU module 1, up to four extensions can
be connected. Therefore, five to seven extensions do not exist.
Diagram 2.16 System configuration example for using Q3 DB
2.1.3 System configuration using Universal model QCPU as CPU No.1
5 6 7 8 9 10 11
...... I/O number
* 1
1st
extension
20 21 22 23
Q68B (8 slots occupied)
45 46 47
Q68B (8 slots occupied)
2
*
3rd
53 54 55
extension
Q65B (5 slots occupied)
4th
extension 61 62 63
2.1 System configuration
...... Slot number
3
*
5rd
48 49 50 51 52 extension
3
*
6rd
56 57 58 59 60 extension
3
*
7rd
extension
Error in mounting
2
1
2
3
4
5
6
7
8
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