Siemens SIMATIC NETS7-1200 Operating Instructions Manual page 21

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:
Table 2- 4 Display of the basic statuses of the module
DIAG - Network
(red / green) (red / green)
green
green
red
Table 2- 5 Display schemes for detailed module statuses
DIAG - Network
(red / green) (red / green)
-
green green
green green
red red
red red
red
CP 1242-7
Operating Instructions, 09/2011, C79000-G8976-C247-02
Meaning of the LED symbols
OFF
Connect
(green)
- -
- -
- -
- -
Connect
(green)
-
-
ON (steady light)
Signal TeleService
quality
(green)
(yellow /
green)
- -
- -
- -
- -
Signal TeleService
quality
(green)
(yellow /
green)
- -
- -
-
-
-
Displays and connectors
Flashing
Meaning
Power OFF
RUN without errors,
Telecontrol or TeleService is running
Startup (STOP → RUN) and other statuses,
refer to the next table.
Error
Meaning
No connection to the GSM network
Existing connection to the GSM network
Waiting for PIN (SIM card OK)
SIM card defective
Wrong PIN
Internal error: Station must be restarted.
2.2 LEDs
-
Not relevant
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