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4
I/O NUMBER ASSIGNMENT
4.5 Definition of I/O Number
I/O numbers indicate the addresses used in a sequence program to input or output ON/
OFF data between the CPU module and other modules.
(1) Input and output of ON/OFF data
Input (X) is used to input ON/OFF data to the CPU module, and output (Y) is used to
output ON/OFF data from the CPU module.
(2) I/O number expressions
I/O numbers are expressed as hexadecimal.
When using 16-point I/O modules, I/O numbers are consecutively assigned to the
slots having
The module mounted in the base unit assigns the following:
0 to
F, 16 points, as shown in Figure 4.16.
• For the input module, "X" is assigned at the beginning of the I/O number.
• For the output module, "Y" is assigned at the beginning of the I/O number.
Power supply
Figure 4.16 Input and output numbers
For the case of input
module
X
0
0
0
X
0
1
0
X
0
2
0
X
0
0
F
X
0
1
F
X
0
2
F
16 input
16 input
16 input
points
points
points
CPU module
4.5 Definition of I/O Number
For the case of
output module
Y
0
3
0
Y
0
4
0
Y
0
3
F
Y
0
4
F
16 output
16 output
points
points
4
- 17
1
2
3
4
5
6
7
8
- Quick Links:
- Features of Basic Model Qcpu
- Basic Model Qcpu
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