Siemens Simatic RTU303xC Series Operating Instructions Manual page 48

LEDs, connectors, buttons, card slots
2.2 LEDs
RTU status LEDs
Table 2- 4
Name
DC IN
BAT
STATUS
48
RTU status LEDs
Color
flashing green
green
red
Meaning
External power OFF
External voltage ON, voltage value in the range 10.8 ... 28.8
V, but not configured
External voltage ON, voltage value in the range 10.8 ... 28.8 V
No power supply from battery modules
•
No battery module configured
•
Power supply from configured battery module 1 (directly at
RTU)
Power supply from configured battery module 2 (to the left of
battery module 1)
No error and sleep mode or service mode or update mode
Start-up after power ON
•
Configuration data is changed.
•
Resetting to factory settings initiated
•
Communication mode
Fault in the power supply
•
– Battery supply that is not configured.
– Battery supply with the configuration of an external
power supply
– Critical battery capacity
– External power supply that is not configured.
Mobile wireless error
•
– Connection error
– Error accessing the SIM card
– Incorrect PIN
Time-of-day synchronization failed
•
Error in Logging
•
– SD card does not exist
– Access error
Error on the extension board
•
– Configured extension board not recognized
– Error reading sensor values
For diagnostics, refer to the messages in the diagnostics
buffer.
Operating Instructions, 06/2019, C79000-G8976-C382-06
RTU303xC