Siemens SIMATIC S7 - 2.4 Wiring between the PLC and the Plant

Installation
2–15
IP244
C79000–B8576–C859–02
S5-135U, S5-155U and Expansion Units:
 
  !
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"  !
    ! 
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
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 
  
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
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Using the IP in the expansion unit when you are also using the interface module IM 307/317 is
not permitted.
2.4 Wiring between the PLC and the Plant
When wiring the plant, i.e. the wiring between the PLC and the plant or control system, proceed
as described in the following figures. The figures are based on the example of a plastic injection
molding machine.