# Firmware Lifecycle
# Change Log
# New Features
UCM firmware version 1.4.0 release
Added Polarization Curve Routine
Added support for Liquid Cooled EL 2.1
Added Calibration Mode
# Bug Fixes
- Fixed Anti-freeze routine bug - In maintenance mode the anti-freeze routine can start even if the electrolyte tank is empty.
Make sure you have physical access to the device before starting the update process.
After firmware upgrade the electrolyser must be powered off and turn back on.
# Compatibility Matrix
Please carefully check the compatibility matrix for the 1.4.0 firmware version with the previous version.
- C - fully compatible;
- NC - not compatible;
- PC - party compatible, check additional notes.
|Modbus Communication Backward Compatibility||C|
# Functional Depreciation Statements
- Warning WS_20 is deprecated. Instead of using it for checking that Electrolyser reached Max Pressure it is recommended to use input register #1200 (4 = Stand-By (Max Pressure)).
# Known Bugs List
The list below contains the most important problems in the firmware and their solutions.
The system stops calculation of total produced H2 after 524288.
Solution: Update the firmware to version 1.6.0 or above. To update your device, navigate to
Firmwareand press the
Check for Updatesbutton. If you do not see an available update, you can contact our support team at firstname.lastname@example.org.