
3 Installation and Commissioning
B−17
CP 343-1 Advancedfor Industrial Ethernet / Manual Part B
Release 06/2008
C79000-G8976-C202-04
Slider for setting the
chassis ground contact
PROFINET interface:
2 x 8−pin RJ−45 jack (ring ports)
Connector for the
power supply
Gigabit interface:
1 x 8-pin RJ-−45 jack
Figure 3-1 Connectors with the front panel open
Ground/chassis ground concept
Notice
Please note the instructions regarding the grounding and chassis ground concept
in the SIMATIC S7 installation guides; see “SIMATIC S7 Programmable Controller
S7−300 − Installation and Hardware: Installation Manual” /1/.
Behind the hinged panel on the left of the device, you will see a slider with which
you can connect or disconnect the chassis ground of the 24 V power supply with
reference ground.
S Slider pushed in: chassis and reference ground connected (note: the slider
must be felt to lock in place).
S Slider pulled out: No connection between chassis and reference ground.
When shipped: Slider pushed in
Use a screwdriver to set the slider.
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