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2.5
SET button
With a SCALANCE M81x, the SET button is on the front of the housing.
The SET button has the following functions:
● Restart
Hold down the button for longer than 3 seconds to run a restart.
● Loading new firmware
If the normal procedure with the "Load & Save" menu of Web Based Management does
not work, the SET button can be used to load new firmware. This situation can occur if
there is a power outage during the normal firmware update.
– Hold down the button until the red fault LED (F) starts to flash after approximately 3
– Now release the button. The bootloader waits in this state for a new firmware file that
SCALANCE M812, M816
Operating Instructions, 08/2016, C79000-G8976-C343-04
seconds.
you can download by TFTP.
Description of the device
2.5 SET button
25
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