If HOUSE/290 is connected to the interface through the Comm Engine and logging is enabled, then every computer command to the Comm Engine is logged. Every CP290 switch activation is logged as well but not reported back to the client at the moment. The log file is HOUSE290.LOG and can be kept at a certain size. See the Comm Engine help for details. HOUSE290.LOG is a text file and contains regular X-10 commands like A1 ON along with the time and date the event took place.
IMPORTANT: The CP290 does not capture external X-10 events and pass them onto the computer. Therefore, it makes it impossible to show live modules status on screen.