Siemens CP 343-1 - Manual (Page 12)

3 Installation and Commissioning
B3L−12
CP 343-1 Lean for Industrial Ethernet / Manual Part B3L
Release 03/2007
C79000-G8976-C198-04
Slider for setting
the chassis
ground contact
Attachment to Industrial
Ethernet:
2 x 8-pin RJ-45 jack
Figure 3-1 Connectors of a CP 343−1 Lean 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.
Note
An Ethernet cable can also be inserted and removed with the power supply on.