Can I assume (not a good word) that the CM15A only keeps track of the status of modules and flags on ITS HC. I would
infer that from the fact that the Status Report only show status for the "MONITORED" HC.
Yes. The CM15A only tracks status of one housecode at a time, as well as the 16 flags (if you have the SmartMacros plugin).
However, it only can track status that it knows about. So, if you turn on or off a device manually (at the switch), unless that switch is two-way (transmits its status back to the CM15A - which none of the current ones X10 makes do AFAIK), then the CM15A won't know about it.
Which brings up one more point - the Status Report appears to show the "FLAGS" correctly, but does not show the
correct "Monitored HC Status" - IE right now it shows all 16 as on (GREEN) but I issued an ALL OFF before looking at the status. Which still makes me wonder if the CM15A is defective.
When you go into AHP, and into Tools--> Hardware Configuration, which HouseCode is set in the drop-down?
What is the "Transcieved House Codes" option set to ("None," Specific," or "Auto")?
By default, AHP will choose to monitor the HouseCode with the largest number of modules on it. If you want to set a different one, you need to make sure that is set in the Hardware configuration screen.
The option to check or not is located under Tools--> Preferences. However, I think the logic might be backward. If you uncheck the "Check Monitored Housecode Usage" box, I think it AUTOMATICALLY changes it to the one with the most modules. I think leaving it checked asks you if you want to change it every time you exit.
The workaround I have (since I have a housecode with more modules than the one I want to monitor) is to create a bunch of "dummy" modules on the housecode I want to monitor, and set them all to the same unit code.
It counts the number of modules, not the number of unit codes in use. (silly, I know - I should ask the developers about that one sometime).