Siemens SIMATIC S5-115F - Page 51

S5-115F Manual Installation Guidelines
Figure 3-9 shows the possible location of an EU 2 in the maximum configuration of a subunit:
Figure 3-9. EU 2 in Maximum Configuration of an S5-115F Subunit
Distributed configuration
Centralized config.
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
EU1
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EU3
CC EU2 EU2 EU2 EU2
max. 4 EU 2/3
max. 4 EU 2/3
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EWA 4NEB 811 6148-02 3-9