How much will the CM11 store in memory and what will it be able to do while the pc is off ? Timed events, macros ? Events based on conditions ?
The CM11A has a 1K EEPROM. It can store timers and macros for execution while disconnected from the PC but has no capability for flags or conditions.
You can pack quite a lot into that 1K. A timer (which controls two macro events) occupies 9 bytes, but you may need more than one to cover the entire year due to Daylight Time or quite a few to handle timers based on Dawn or Dusk times. A macro element, e.g., turn On from 1 to 16 modules, typically occupies 3 bytes (4 bytes for dims and brights, 6 bytes for Extended Code commands). A macro itself occupies the sum of its elements plus 2 bytes and the trigger for it occupies 3 bytes.