Re: Protocol for infrequently used X10 commands ?

["Luc Degrande" <luc.degrande@xxxxxxx>]

> Did your TM12 respond with a unit address frame first e.g. 1110,A,1
then
> 1110,A,STATUS ON - or did it just reply with the 1110,A,STATUS ON
frame?
> I'm guessing the latter.

Correct guess.

> > Hail request is used to detect other X10 transmitters in
"listening
range":
> > AHR, BHR ....MHR all give the same result:
> > AHA: Hail Acknowledge from house code A.
>
> So you sent a HAIL REQUEST without addressing an individual unit
first?
> Interesting. So you can only 'ping' a particular house code, not a
> specific unit.

In fact you ping ALL house codes, Hail request for B (or others) gives a
hail ack for A.
This was done to find out used house codes at the "neighbours" so
you
could choose an unused one (not to fool around with their stuff...).

What circuit will you use to transmit the status back or do you use a 2 way
interface?

Luc.