Siemens SIMATIC NET CP 343-1 User Manual

B3L−14

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L

Release 03/2007

C79000-G8976-C198-04

The display on the front panel consists of 8 LEDs that indicate the operating mode
and the communication status.

Front panel:

The LEDs have the following meaning:

S SF:

Group error

S BF:

Bus fault PROFINET IO

S DCV5: DC 5 V power supply via the backplane bus (green = OK)
S RX/TX: Acyclic data exchange, for example Send/Receive 

(not relevant for PROFINET IO data)

S RUN:

RUN mode

S STOP: STOP mode
S P1 / P2: Link status of Ethernet port 1 / port 2