固件

PR stands for prerelease.

The release of a firmware version takes place in 2 phases:

• First, we release a version labeled as PR for prerelease (e.g.: 12.1s1PR).
• Later, in a time frame of 2 - 3 months, we will release the official version (e.g.: 12.1s1), without the PR suffix.

By doing so, we allow people to take advantage of new features and improvements in an early stage. We are also expressing our belief in the concerned PR firmware version to be an upcoming official release.

It is good to notice that during a PR version:

• The installation of such PR versions is not advised to be performed on devices which should be deployed or commissioned. We would advise to wait for the official release version.
• Documentation and other support tools can still be in the process of creation/publishing. They might be available but not fully done.
• Marketing/sales materials may not be published until the official release. It may also happen that marketing release is provided earlier than the official release, for preannouncement purposes.

Both files are used as a firmware update file for an Ewon device.

The ".ebu" file can be used for the following cases:

• A recovery of your Ewon device with no data lost;
• A straight update between any firmware versions, especially major versions (e.g.: v11 to v14 in a single step), which also triggers the recovery process with no data lost.

The update via .ebu file - the recovery process - can only be performed locally, either through eBuddy or through the SD card / USB flash drive.

The .edf file can be used in the following cases:

• An update of an Ewon firmware between minor versions: v14.1s0 to v14.2s0;
• An update of an Ewon firmware between major versions which involves the firmware to be updated to each pivot firmware version (e.g.: v11.0s0 to 12.0s0, then to 13.0s0, then to 14_0s02, ...)

The update via .edf file can be done either locally or remotely through eBuddy or FTP, and only locally through SD card / USB flash drive.