Appendix 3: LED blinking modes
The WaveGuide sensor is equipped with a blue indicator LED inside the top lid. The
purpose of this LED is is twofold:
• The LED functions as a status indicator when in standard operating mode. This is
the status mode of the LED.
• The LED provides visual assistance when the 2 contacts are connected. This is the
settings mode of the LED.
Settings mode
When a connection is made between the 2 contacts labeled ’reset’ the LED will start blinking
rapidly at 10 Hz. Depending on when the connection is broken again, the following will
happen:
• If the connection lasts between 0.5 and 2 seconds, the ip address is set to the default
of 192.168.111.71.
• If the connection lasts between 2 and 10 seconds, nothing happens. During this phase
the LED stops blinking. After 10 seconds the LED starts blinking again.
• If the connection lasts more than 10 seconds, the system will be reset to the factory
settings, ip address NOT included. However, the system will also receive the default
ip address (192.168.111.71) as its second ip address.
After the settings mode is exited the LED will switch to the status mode again.
Status mode
During operational mode the LED indicates the status of the device by blinking a number
of times. The blinking signal consists of a certain number of flashes at 0.5 seconds interval
followed by a downtime of 4 seconds. The signal is then repeated. The status of the system
determines the number of flashes within the signal.
Table 11 describes the LED’s indicator functions.
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