Siemens SCALANCE M874-2 Operating Instructions Manual page 19

● Reset to factory defaults
SCALANCE M874, M876
Operating Instructions, 07/2014, C79000-G89760-C331-03
– Hold down the button until the red fault LED (F) stops flashing after approximately 10
seconds and is permanently lit.
– Now release the button and wait until the fault LED (F) goes off again. The device then
starts automatically with the factory settings and can be reached via the IP address
192.168.1.1.
You will find more information in the section "Service and Maintenance" in the
SCALANCE M-800 Web Based Management configuration manual.
Description of the device
1.5 SET button
19