# Firmware Lifecycle

# Requirements


Before OTA make sure to go through the list below:

  • It is recommended to update the device in the IDLE mode without receiving and executing any commands from Modbus, Enapter Cloud, Enapter Mobile App, Web GUI or others.
  • Make sure you have physical access to the device before starting the update process.
  • Do not power off the device during the firmware update.
  • Remove Dryer Control Network before updating the firmware.
  • If Site has Enapter Gateway it needs to be updated to version 1.8.9 or higher.
  • Dryer connected to DCN/IDCN should be version 3.6.0 or higher, otherwise it won't be possible to connect Electrolysers to IDCN, monitor and control Dryer from Electrolyser Web GUI or Modbus TCP interface.

# Change Log

# New Features

  • Initial version for Electrolyser EL 4.1.
  • Recombiner functions were removed for new hardware revision.
  • Added support for new hardware product codes: ELE410535A2ASV01, ELE410508A2ASV01, ELE410535A2LSV01, ELE410508A2LSV01.
  • Warning will be shown if antifreeze routine can’t be started. New event Warning WF_10: Electrolyte anti-freeze routine is disabled and Warning WB_01 Recombiner anti-freeze routine is disabled were introduced.
  • To increase electrolyte circulation pump lifetime it’s start is happening now in 20 seconds after minimum electrolyte level is reached during flushing.
  • Added Input Register #1014 Cooling Type.
  • Timeout for Ramp-up 2 state to ensure electrolyser proper operation.
  • Pump malfunction or insufficient electrolyte flow detection improved.
  • New event Fatal Error FX_43: Insufficient electrolyte flow and Warning WX_71: Electrolyte flow check disabled were introduced.
  • New event Error EU_20: Target current could not be reached was introduced.

# Bug Fixes

  • Warning WU_10: Gas-side pressure is not atmospheric behaviour improved in case of unpredicted reboot.

# Compatibility Matrix


# Functional Depreciation Statements


# Known Bugs List

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

  • It is an issue using WiFi and Windows to access the .local hostname.

    Solution: Use a local ethernet connection to the electrolyser or IP address as a hostname.

  • DCN may assign an IP address to devices (computers, mobiles) connected to Wi-Fi AP associated with DCN enabled Enapter devices.


    • Delete the DCN from the Enapter Mobile App and create it one more time.
    • If it is possible try to separate the DCN from your main network environment by connecting the DCN to another WiFi AP. It is no need to separate one DCN from another.