Siemens S7-300 - Connecting 2-Wire Cables to the Shielding Contact Element

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S7-300 Automation System, Hardware and Installation: CPU 312IFM - 318-2 DP
7-16 A5E00203919-01
If you need more than four shielding terminals, start wiring at the rear row of the
shielding contact element.
CPU
PS
22
2
1
Figure 7-7 Connecting 2-wire cables to the shielding contact element
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 Magnified view of shielding terminal
 Wiring of shielding terminal
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For your connection to the front connector, leave a sufficient cable length behind
the shielding terminal. This allows you to disconnect the front connector, e.g. for
repairs, without having to open the shielding contact element.