Siemens SIMATIC NET CP 343-1 User Manual download pdf (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.

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Siemens SIMATIC NET CP 343-1 User Manual Page 12