Leds - Siemens S7-1200 Operating Instructions Manual

LEDs and connectors

2.2 LEDs

2.2 LEDs
LEDs of the module
The CP has the following LEDs for displaying the status:
● "DIAG" LED on the front panel
The "DIAG" LED that is always visible shows the basic statuses of the module.
● LEDs below the upper cover of the housing
These LEDs provide further details on the module status.
Table 2- 1
LED / colors
red/green
Table 2- 2
LED / colors
red/green
yellow / green
Note
LED colors when the module starts up
When the module starts up, all its LEDs are lit for a short time. Multicolored LEDs display a
color mixture. At this point in time, the color of the LEDs is not clear.
Display of the operating and communication status
The LED symbols in the following tables have the following significance:
Table 2- 3
Symbol
LED status
The LEDs indicate the operating and communications status of the module according to the
following scheme:
28
LED on the front panel
Name
DIAG
LEDs below the upper cover of the housing
Name
NETWORK
CONNECT
green
SIGNAL QUALITY
VPN
green
Meaning of the LED symbols
OFF
Meaning
Basic status of the module
Meaning
Status of the connection to the mobile wireless network
Status of the connection to the master station
Signal quality of the mobile wireless network
Status of the VPN connection
ON (steady light)
Operating Instructions, 01/2015, C79000-G8976-C381-01
Flashing Not relevant
CP 1243-7 LTE
-