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Display of the operating and communications statuses
The LED symbols in the following tables have the following significance:
Table 3- 3
Symbol
LED status
The LEDs indicate the operating and communications status of the module according to the
following scheme:
DIAG
(red / green)
Module startup (STOP → RUN) or error statuses
-
Connection to Industrial Ethernet
-
-
Connection to communications partners
Connection for online functions
-
-
Siemens Automation
CP 1243-1 PCC
Operating Instructions, 02/2015, C79000-G8976-C384-01
Meaning of the LED symbols
OFF
LINK
CONNECT
(red / green)
(green)
-
-
-
-
ON (steady light)
SERVICE
(green)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
LEDs and connectors
Flashing
Not relevant
Meaning
Power OFF
Startup - phase 1
Missing STEP 7 project data
Running (RUN) without error
Backplane bus error
Errors: double IP address
Connection to Industrial Ethernet
exists
No connection to Industrial Ethernet
Connection established to at least
one partner,
CPU in RUN
Connection established to at least
one partner,
CPU in STOP
Physical connection established,
partner not responding,
CPU in RUN
Physical connection established,
partner not responding,
CPU in STOP
Connection for online functions estab-
lished
No connection to engineering station
3.2 LEDs
-
19
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