Re: X10 Control Question

["tparent" <tparent@xxxxxxxxxx>]

CM11 is a two ways ASCII to powerline interface and has the ability to
execute in "stand-alone" (without being connected to a PC) stored
macro.
For me CM12 is a synonym of CM11 (but should be confirmed by true
guru).

PL513 is a one way powerline interface (sending).
This interface has no "logic" inside. It means that he is unable to
convert one  protocol to an other or store and execute macro like the
previous one.
At least, three wires are required. Ground, Zero detection which
provide a pulse when the 0V point is detectect on the 110V sine curve,
and TX, which pulse an X10 "bit" (5V) when TX is high.
All these cable are insulated from the powerline through optocoupler.
As you guess, trying to program the correct "pulse" sequence to send
X10 command (in binary) could be a hard work and is not (at my point of
view) suitable for communicating between PC-MAC programs and powerline
but more dedicate to interface your own electronic (like PIC
controller) with PLC.

TW523 is a two ways version of the PL513 (means could act as recevier
and sender).

Just for info, CM11 implement something looking like a "collision
detection" protocol, which increase the overall reliability of X10.
TW523 does not and seems to be unable to provide this functionality to
the upper application layer).

Hope it helps

Thierry

hi ho wrote:
> Further to my post - the rain8 is meant to work with an XM-10 power
line
> interface, I think my controller uses a TW523 Powerline interface.  I
also
> note mention of a CM11 interface.  I hope this extra info helps.  As
an X10
> newby, what is the difference between a CM11, a cM12, a PL513 and TW
523
> powerline interfaces ?
>
> Thanks in anticipation
>
> "hi ho" <someone@xxxxxxxxxxxxx> wrote in message
> news:lP52e.16272$C7.12596@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > I have an automation controller that can control powerline X10
devices by
> > connecting a Power Line Interface (PL513 or TW523) with a supplied
cable
> > with RJ11 connectors on each end that plug between my automation
> controller
> > and powerline interface module.
> >
> > Now the query, what serial communication protocol is used between
the
> PL513
> > and my automation controller.  Reason is that I do not really want
to
> > control using the powerline option due to reliability issues -
rather
> > connect say a Rain8 X10 device (that is normally connected to the
> powerline
> > via TW523 like my automation controller) directly by cable to my
> automation
> > controller.  Indeed can you daisy chain say two Rain8 or more X10
devices
> > (with different X10 addresses) on a single cable like you can RS485
> serial.
> >
> > BTW - the Rain8 is a device that provides 8 analogue switched
outputs
> under
> > X10 control for sprinkler control.  It seems logical to my mind
that you
> > should be able to directly connect the automation controller and
the
> Rain8 -
> > as both use the Powerline Interface Modules to communicate via the
power
> > line carriier.
> >
> > Hope some expert in X10 can help.
> >
> >