6BASE UNIT AND EXTENSION CABLE

6.5 I/O Number Allocation

MELSEC-Q

The I/O numbers are automatically allocated in the system loading status.

1st extension stage

2nd extension stage

3rd extension stage

O U T

I

N

O U T

I

N

O U T

I

N

O U T

Powersupply module

 

0

1

2

3

4

 

 

CPU module

X/Y

X/Y

X/Y

X/Y

X/Y

 

 

0

20

40

60

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Powersupply module

5

6

7

8

9

10

11

12

X/Y

X/Y

X/Y

X/Y

X/Y

X/Y

X/Y

X/Y

A0

C0

E0

100

120

140

160

180

 

 

 

 

 

 

 

 

 

 

Powersupply module

13

14

15

16

17

18

19

20

X/Y

X/Y

X/Y

X/Y

X/Y

X/Y

X/Y

X/Y

1A0

1C0

1E0

200

220

240

260

280

 

 

 

 

 

 

 

 

 

 

Powersupply module

21

22

23

24

25

 

 

 

X/Y

X/Y

X/Y

X/Y

X/Y

 

 

 

2A0

2C0

2E0

300

320

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

In this system, 32-point modules are loaded on slots 0 to 25.

For the I/O number setting method using GX Developer, refer to the Operating Manual of GX Developer.

For details of I/O number allocation, refer to the following manual.

•High Performance Model QCPU (Q mode) User's Manual (Function Explanation, Program Fundamentals)

POINT

For the extension using the Q5B, Q6BB and QA1S6B, allocate the I/O numbers on the modules starting from the Q series module installed on the Q5B, Q6B base unit.

<Example> Where 32 modules are installed in all slots with the configuration shown below.

Q38B main base unit

00 to FF

Q68B extension base unit

100 to 1FF

QA1S68B extension base unit

200 to 2FF

QA1S68B extension base unit

300 to 3FF

6 - 7

6 - 7