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Firmware

The firmware is the internal software of our products. On this page you will find files for all our updatable product by means of which you can update your device to the latest version. A firmware update allows you to benefit from new features and functional enhancements.
DeltaSol® BX Plus Multifunction controller

The DeltaSol® BX Plus is a compact multifunction controller for multi-store solar and heating systems. The intuitive commissioning menu leads you through the system configuration by requiring the most important adjustments directly after connecting the controller. For an optimum overview, all sensor and relay allocations are listed in the service menu.

Firmware DeltaSolBX_Plus v2.08
Notice:

An update to version 2.xx is only possible with the 1.10 version. Older firmware versions have to be updated to version 1.10 first (version 1.10 is available for download below).

The version number of the firmware version currently installed on the controller can be read from the Status / Messages menu.

Attention!

The update cannot be reversed! After the update to firmware version 2.xx from version 1.10, a downgrade via the SD card will not be possible!

A downgrade can only be carried out by RESOL. For this purpose, the device has to be sent to us. The downgrade is not free of charge.

Attention!

Data loss! When the firmware version 1.10 is updated to 2.xx, all data logged in the DeltaSol® BX Plus as well as the configuration of the device will be deleted! Store all adjustments onto an SD card before running the update! After the update, the adjustments have to be restored manually.

Due to the vast changes, a changelog is not available for the firmware version 2.05. More information can be found in the Manual.

Here’s how it goes:

  • Create a folder named RESOL on the first level of the SD memory card
  • Click firmware download
  • Save the ***-firmware.zip file on your computer
  • Right click on the ***-firmware.zip file, select Extract to… in the contextual menu
  • Select the RESOL folder on the SD card as target directory
  • Insert the SD memory card into the card slot of the controller
  • The update dialogue appears
  • For further information consult the manual
Firmware DeltaSolBX_Plus v1.12
Notice:

An update to version 2.xx is only possible with the 1.10 version. Older firmware versions have to be updated to version 1.10 first (version 1.10 is available for download below).

The version number of the firmware version currently installed on the controller can be read from the Status / Messages menu.

Attention!

The update cannot be reversed! After the update to firmware version 2.xx from version 1.10, a downgrade via the SD card will not be possible!

A downgrade can only be carried out by RESOL. For this purpose, the device has to be sent to us. The downgrade is not free of charge.

Attention!

Data loss! When the firmware version 1.10 is updated to 2.xx, all data logged in the DeltaSol® BX Plus as well as the configuration of the device will be deleted! Store all adjustments onto an SD card before running the update! After the update, the adjustments have to be restored manually.

Due to the vast changes, a changelog is not available for the firmware version 2.05. More information can be found in the Manual.

Here’s how it goes:

  • Create a folder named RESOL on the first level of the SD memory card
  • Click firmware download
  • Save the ***-firmware.zip file on your computer
  • Right click on the ***-firmware.zip file, select Extract to… in the contextual menu
  • Select the RESOL folder on the SD card as target directory
  • Insert the SD memory card into the card slot of the controller
  • The update dialogue appears
  • For further information consult the manual