Справочник Пользователя для Mitsubishi Electronics QnUCPU

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4.2.1  Concept of I/O number assignment

The CPU module assigns I/O numbers at power on or reset, according to the I/O assignment setting.

The Figure 4.5 shows an example of I/O number assignment to base units in the system where the CPU module 
is mounted on the main base unit.

For the main base unit, the I/O numbers are assigned to the modules from left to right in a 
sequential order, starting from 0

H

 assigned to the module on the right of the CPU module.

For extension base units, the I/O numbers are continued from the last number of the I/O number of 
the main base unit.

Each slot on the base unit occupies I/O numbers by the number of I/O points of the mounted 
modules.

Number of I/O points

16 points   16 points   16 points   16 points   16 points

16 points   16 points   16 points   16 points   16 points   16 points   16 points   16 points

Q35B (5 slots occupied)

Q65B (5 slots occupied)

Q68B (8 slots occupied)

CPU

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Slot number

I/O number: assign the I/O points of each slot

Assignment order

Number of slot points

16 points   16 points   16 points   16 points   16 points

Assignment order

Number of slot points

Assignment order

Number of slot points

I/O number assignment order

X        0 to        F : Inupt module
Y        0 to        F :Output module
          0 to        F :Intelligent function module

X00 to 0F

X10 to 1F

X20 to 3F

X40 to 4F

50 to 8F

90 to AF

B0 to CF

D0 to EF

YF0 to FF

X110 to 11F

X120 to 12F

130 to 14F

150 to 16F

170 to 18F

Y190 to 19F

Y1A0 to 1AF

Y180 to 1BF

Vacancy (100

 to 

10F)