cxmon
Access the Phocos CX/CXN-10/20/40 solar charge controller's logger.
This is a minimalistic, portable command line tool, written entirely in BASH scripting language, for accessing solar charge controller's historical logs and current status information. It should be compatible with Phocos CX/CXN-10/20/40 solar charge controllers. It has been tested with CXN-40 operating in 12 V mode.
The documentation can be found at the top of the executables. The tool is licensed under GPLv2.
The protocol has been reverse-engineered on the author's own free time...