Wiring the S7-400
4-24
S7-400 and M7-400 Programmable Controllers, Installation Manual
C79000-G7076-C424-01
CR ER
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Shield/protective
ground bar
< 7 V
Figure 4-9 Shielding and Grounding the Connecting Cable for a Remote Connection
Special Cases
For remote connections, you must use precut/preassembled connecting cables of
fixed length. When the connecting cables are laid, therefore, there may be excess
lengths. These must be coiled with a bifilar winding and deposited.
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