Siemens SCALANCE M874-3 - Scalance M876-3, M876-4

Description of the device
2.4 LED display
SCALANCE M874, M876
26 Operating Instructions, 08/2018, C79000-G8976-C331-08
2.4.2
SCALANCE M876-3, M876-4
LED
Status
Meaning
F OFF No fault/error.
ON
The device is starting up or an error has occurred.
Possible errors/faults:
• Wrong PIN number
Flashing The bootloader waits in this state for a new firmware file that you can
download using TFTP.
Flashing
at the inter-
val: 2000
ms on / 200
ms off
Firmware on PLUG
The device is performing a firmware update or downgrade.