# Firmware Lifecycle

# Change Log

  • UCM firware version 1.1.1 release

  • The following variable is changeable in any state by any user:

  • Stack_TargetCurrent_A (acceptable range: 0A - 53A)

  • Implemented separate stack current changing limit


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 compatibility matrix for 1.1.1 version of the firmware with other firmwares


  • C - fully compatible;
  • NC - not compatible;
  • PC - party compatible, check additional notes.
OTA Upgradable C
Modbus Communication Backward Compatibility C
Configuration C
Rollback C

# Functionality Deprication Statements


# Modbus Compatibility

# Known Bugs List

The list below contains the most important problems in the firmware and their solutions.

  • MAC address of network card is set to 00:80:E1:00:00:01.

    Solution: Update EL 2.1 firmware to version 1.2.1-fix2 or higher.