# Firmware Lifecycle
# Change Log
UCM firmware version 1.2.3 release
Added Modbus State Registers
Fixed Incorrect Command Statuses
Updating to version 1.2.3 causes EL 2.1 to fall into an error, which means the need to configure Blowdown, Fan's spinup timeouts and Maintenance arameters.
Please contact Enapter Support Team to do that.
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 1.2.3 version of the firmware with other firmwares
- C - fully compatible;
- NC - not compatible;
- PC - party compatible, check additional notes.
|Modbus Communication Backward Compatibility||C||C|
# Functionality Deprication Statements
- Warining WS_20 is depricated. Instead of using it for checking that Electrolyser reached Max Pressure it is recommended to use input register #1200 (4 = Stand-By (Max Pressure)).
# Modbus Compatibility
# Known Bugs List
The list below contains the most important problems in the firmware and their solutions.
MAINTENANCE MODE ON in Error mode is not possible using Enapter Mobile Application.
Solution: MAINTENANCE MODE ON can be enabled using Enapter Cloud.
ROLLBACK VOLATILES after WRITE VOLATILE VARIABLES is not possible.
Solution: Bug will be fixed in the next version of firmware.