CPU and Input/Output Configuration
6-3
S7-200 Programmable Controller System Manual
A5E00066097-02
Examples of Local and Expansion I/O
Figure 6-1 and Figure 6-2 provide examples that show how different hardware
configurations affect the I/O numbering. Notice that some of the configurations
contain gaps in the addressing that cannot be used by your program.
CPU 221
I0.0 Q0.0
I0.1 Q0.1
I0.2 Q0.2
I0.3 Q0.3
I0.4
I0.5
Process-image I/O register assigned to physical I/O:
Figure 6-1 I/O Numbering Examples for a CPU 221
Module 0 Module 1 Module 2
I0.0 Q0.0
I0.1 Q0.1
I0.2 Q0.2
I0.3 Q0.3
I0.4 Q0.4
I0.5 Q0.5
I0.6 Q0.6
I0.7 Q0.7
I1.0 Q1.0
I1.1 Q1.1
I1.2
I1.3
I1.4
I1.5
I2.0 Q2.0
I2.1 Q2.1
I2.2 Q2.2
I2.3 Q2.3
I3.0
I3.1
I3.2
I3.3
I3.4
I3.5
I3.6
I3.7
CPU 224
4 AI/
1 AQ
8 In4 In /
4 Out
Process-image I/O register assigned to physical I/O:
Module 3 Module 4
Q3.0
Q3.1
Q3.2
Q3.3
Q3.4
Q3.5
Q3.6
Q3.7
4 AI/
1 AQ
8 Out
AIW0 AQW0
AIW2
AIW4
AIW6
AIW8 AQW4
AIW10
AIW12
AIW14
Figure 6-2 I/O Numbering Examples for a CPU 224
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