eWON General Reference Guide - eWON wiki

10.5 Resetting the eWON
10.5.1 Overview
General Reference Guide Appendix
In some situation it may be desired or required to initialize the eWON.
The eWON has a non volatile memory which is used to store configurations and acquired data. Non volatile information is basically divided into 2
groups:
• Communication configuration
• The rest of the non volatile data (file system, Tag Config, user defined web site, etc.)
The reset button is located between the SERIAL and LINE connectors. A very small hole is located in the box; you will need a thin tool like a
paper clip to push the button.
The button must be pressed while the eWON is powered up. The button must be maintained until correct initialization level has been reached
(see below):
Reset hole
10.5.2 Reset sequence
Figure 155: eWON - reset hole and "USER" led
There are 2 initialization levels:
• The first level (the more usual) will force a format of the eWON.
• The second level will reset the eWON in a state corresponding to the "out of the box" configuration. By doing this you will also
perform a thorough self test of the eWON.
10.5.2.1 First level reset
When the eWON boots with the reset button pressed, after few seconds, the "USER" led will start blinking in red at a 1 flash per second rate. As
soon as the led starts blinking at that rate, release the switch. The Format request will be set.
The blinking will continue during 4 seconds, after the eWON will enter in “Second level reset” (see next paragraph), so there is no need to hurry,
but you must release the switch before the 4 seconds elapse.
10.5.2.2 Second level reset
If the reset button is maintained for more than 4 seconds (wait 15 seconds with Firmware prior 6.0s3) after blinking starts, the "USER" led will stop
blinking and will become solid red, at that moment the "Out of the box reset" is registered, the reset button can be released and all the data of the
eWON will be erased, including its communication, IP address,… parameters.
The eWON configuration tool eBuddy will be required to define your eWON working IP address.
Note: if you have waited too long and the "USER" led becomes "solid red" while you only needed to format the eWON, the only solution is to keep
the reset button pressed and remove the eWON power, this will avoid entering the "Full Erase" procedure.
10.5.3 Second level initialization diagnostics
User led
When the second level initialization is requested, the eWON will also perform a self test. When the initialization ends, the test result is displayed
via the "USER" led. If the test is successful, the following pattern will be displayed on the led.
The led will flash for 200msec every 1.5 seconds. The pattern is repeated indefinitely until the eWON is manually rebooted (Power OFF/Power
ON).
RG-001-0-EN ver 1.14 eWON® - 02/05/2012 - ©eWON sa Page 218