eWON General Reference Guide - Esco Drives & Automation

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General Reference GuideUpgrading the eWON firmware9.4 Downgrade firmware9.4.1 Firmware prior to 5On firmware version prior to 5.x, the downgrade procedure is the same as the upgrade procedure :- use the “ewonfwr.edf” of the target firmware and copy it on the eWON root directory by FTP.Note: After a downgrade, it is recommended to format completely your eWON.9.4.2 Firmware version 5.x (and above)On firmware version 5.x (and above), to downgrade your eWON:- the firmware file “ewonfwr.edf” need to be renamed in “dewonfwr.edf” (note the leading ‘d’)- copy this dewonfwr.edf on the eWON root directory by FTP.Note: You need to rename the ewonfwr.edf file only for downgrading !Service release firmware versions are not considered as downgrade.Examples:5.0 is lower than 5.15.0 S4 is not lower thant 5.0 S7 (Service release on the same firmware version 5.0)4.3 is lower than 5.0The download operation is slightly diffrent: when the flashing operation starts, the led will first flash red – green – off repetitively, then the normalflashing sequence with red flash will start.The first operation consists in a complete memory erasure.Important : This downgrade erases ALL eWON configuration files (comcfg.txt too) !The eWON IP address return to 10.0.0.53 and modem parameters return to default.Never do a downgrade from a 5.x firmware version remotely !So please backup the txt config version, comcfg, and /usr data before downgrading.RG-001-0-EN ver 1.5 eWON® - 20/03/2009 - ©ACT'L sa Page 197
General Reference GuideUpgrading the eWON firmware9.5 Upgrade Bootloader (to upgrade to firmware >= 5.2)Since firmware version 5.2, the Bootloader of the eWON must be greater than 2.0.Every eWON produced with a serial number greater or equal to 0648-xxxx-xx have already this bootloader 2.0.The eWON produced before 0648-xxxx-xx exceptionally need to be upgraded. The Bootloader 2.0 is required to upgrade eWON to firmware 5.2.In order to do that, a bootldr.bin file must be downloaded in the eWON by FTP. There is no need to reboot after the bootloader upgrade.You can find the bootldr.bin file on the eWON website http://support.ewon.biz in the “Support - Download Firmware” section.The eWON data or config is NOT affected by this upgrade.Important: You should not remove the power during a bootldr upgrade.9.5.1 Error MessageIf a firmware with revision >=5.2 is downloaded in the eWON, and the bootloader has not a version > 2.0, the eWON will generate an error andthe firmware will be refused.A simple download of the bootloader will solve the problem and allow you to download the >=5.2 firmware.For firmware =5.1 (5.1, 5.1s1, 5.1s2) , in the Event Log (or in Events.txt file) the message will be ”Bootloader upgrade required”9.5.2 Checking your boot loader versionIt can be checked in the estat.htm file or with Export Bloc Descriptor $dtES.SIFBootldrRev:00020003Or in the Diagnosis/status/Info page:In the above examples, the Bootloader version is 2.3.note: bootloader version display only available since eWON firmware 5.2RG-001-0-EN ver 1.5 eWON® - 20/03/2009 - ©ACT'L sa Page 198
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