Siemens SIMATIC NET SCALANCE W774-1 Operating Instructions Manual page 30

Description of the device
4.5 LED display
LED
P2
R1
F
30
Color Meaning
Off There is no connection over the Ethernet port P1.
Green There is a connection over the Ethernet port P1 (link).
Flashing green Data transfer over the Ethernet interface P1.
and yellow
Off The WLAN interface 1 is deactivated.
Access point mode:
Green
The WLAN interface 1 is initialized and ready for operation.
Client mode:
There is a connection over the WLAN interface 1.
Flashing green Data transfer via the WLAN interface 1.
and yellow
Client mode:
Flashing yellow
The client is searching for a connection to an access point.
Access point mode:
Flashing yellow
With DFS (802.11h), the channel is scanned for one minute for
competing radar signals before the channel can be used for data
traffic.
Interval:
100 ms
Client mode:
on / 100 ms off
The client waits for the MAC address due to the setting "Automatic"
for the "MAC mode" parameter and is not connected to an access
point.
Client mode:
Flashing yellow
and green The client waits for the MAC address due to the setting "Automatic"
for the "MAC mode" parameter and is connected to an access point.
Interval:
3x (100 ms on /
100 ms off)
1x 1000 ms on
Off No fault/error.
Red The device is starting up or an error has occurred.
SCALANCE W774-1 / W734-1
Operating Instructions, 03/2022, C79000-G8976-C325-15