Siemens SCALANCE M812 Operating Instructions Manual page 19

LED
F
SCALANCE M812, M816
Operating Instructions, 08/2018, C79000-G8976-C331-06
Status Meaning
OFF No fault/error.
ON The device is starting up or an error has occurred.
Flashing The bootloader waits in this state for a new firmware file that you can
download using TFTP.
Flashing Firmware on PLUG
The device is performing a firmware update or downgrade.
at the
interval:
2000 ms on
/ 200 ms off
Description of the device
2.3 LED display
19