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4.8 Examples of I/O Number Assignment
4
I/O NUMBER ASSIGNMENT
4.8 Examples of I/O Number Assignment
The following example shows I/O number assignment made when I/O assignment setting
is performed using GX Developer.
(1) When changing the number of points of an empty slot from 16 to 32
points:
Reserve 32 points so that the I/O numbers of Slot No. 4 and later do not change when
a 32-point input module is mounted in the currently empty slot position (Slot No. 3) in
the future. (The empty Slot No. 12 has 16 points, which do not change.)
(a) System configuration and I/O number assignment before the I/O assignment
with GX Developer
Figure 4.24 I/O number assignment (Before changing points for empty slot)
Q38B
Q68B
Input module
Input module
Input module
Empty
Output module
Output module
Output module
Output module
32
points
32
points
32
points
32
points
32
points
32
points
32
points
16
points
0
1
2
4
5
6
7
3
X00
X20
X40
Y70
Y90
YB0
YD0
Number of I/O
points
Slot number
I/O number
60
X1F
X3F
X5F
Y8F YAF YCF YEF
6F
Intelligent
function module
Intelligent
function module
Intelligent
function module
Intelligent
function module
Empty
Output module
Output module
Output module
32
points
32
points
32
points
16
points
32
points
32
points
32
points
32
points
8
9
10
12
13
14
15
11
F0
110
130
170
Y180 Y1A0 Y1C0
150
10F
12F
14F
17F Y19F Y1BF Y1DF
16F
Extension 1
