Siemens SIMATIC IPC547D Operating Instructions Manual page 19

Rear status displays
The following figure shows the location of the LEDs on the Ethernet interface.
Display
Ethernet LAN 1, 2
1
The following figure shows the location of the "Power" LEDs on a device with redundant
power supply.
SIMATIC IPC547D
Operating Instructions, 06/2011, A5E03473780-01
Meaning
Green LED
1
Link status display
Yellow LED
Activity status display
To identify them clearly, the LAN interfaces are numbered on the housing. The
numbering by the operating system may deviate from this.
LED
OFF
GREEN
OFF
YELLOW
The LED has the following meaning:
 Lit green: Power supply module is in operation
When there is no redundancy, an acoustic signal
sounds continuously. Redundancy is in effect when
both power supply units are in operation.
 Not lit: Power supply module is out of service
1.2 Design of the device
Description
No cable connected

Cable disabled

Interface disabled

Active cable connected
No cable connected

Cable disabled

Interface disabled

No activity

Data transfer active
Overview
19