Siemens SIMATIC NET SCALANCE W720, Operating Instructions Manual

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Description of the device
4.5 LED display
SCALANCE W760 / W720
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Operating Instructions, 03/2022, C79000-G8976-C322-13
LED Color Meaning
F Off No fault/error.
Red The device is starting up or an error has occurred.
Flashing red
Interval:
500 ms
on / 500 ms off
The bootloader waits in this state for a new firmware file that you can
download by TFTP.
Red
Simultaneous
R1 yellow
flashing
A competing radar signal was found on all enabled channels.
P1
R1
Flashing yellow The port LEDs flash for detection of device location.
The "LED flash" function is
•
Either with SINEC PNI
• Or via the WBM page "Discovery and Set via DCP"
Note
Primary user (radar) on all enabled channels (only when DFS is enabled)
If the device detects competing radar signals on all enabled channels of the WLAN
interface, the F LED is lit and R1 flash. No data traffic is then possible for the next 30
minutes. After this time, the device runs the scan again and checks whether a primary
user still exists. If no primary user is detected, data traffic is possible again.
The wait time of 30 minutes is necessary due to legal requirements and cannot be
shortened even by restarting the device.