Precautions On The Number Of Mounted Modules - Mitsubishi Electric Q12DCCPU-V User Manual

7
I/O NUMBER ASSIGNMENT

(2) Precautions on the number of mounted modules

The number of mounted modules must be within the range of available slots.
Even if the total number of slots on the main and extension base units is greater than
the number of available slots (for example, six 12-slot base units are used), no error
will occur as long as the modules are mounted in the allowed number of slots.
If a module is mounted in a slot that is outside the range of available slots, an
intelligent function module assignment error (error code: 2124, SP.UNIT LAY ERR.)
will occur.
Power supply
module
Main base unit
Q312B
CPU 0 1 2 3
C Controller module
Extension base unit
Q612B
12 13 14 15 16 17
Q612B
24 25 26 27 28 29
Q612B
36 37 38 39 40 41
Q612B
48 49 50 51 52 53
Q612B
60 61 62 63
Modules can be Modules cannot be installed.
installed. (Installing modules will result in error.)
Figure 7.1 Configuration example
7.1 Number of Base Units and Number of Slots
4 5 6 7 8 9 10 11
Extension 1
18 19 20 21 22 23
Extension 2
30 31 32 33 34 35
Extension 3
42 43 44 45 46 47
Extension 4
54 55 56 57 58 59
Extension 5
Slot number
7
1
2
3
4
5
6
7
8
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