Re: Using RCS RS-485 8-Button LCD Keypad with ELK M1

["R. Lejeune" <info@xxxxxxxxxxxxxxxxxxxxxxx>]

I don't think it would be quite that easy.

First of all, the ELK M1 RS-485 bus and the RCS bus run at different speeds.
You'd have to connect the RCS Keypad to a Serial Port Expander (M1XSP) to
get the baud rate to 9600.
Also, the RCS keypad is a polled device.  You'd have to write rules to query
the keypad, then write rules to capture the response(s).

Have you thought about using RSC thermostats and temp sensors?  (TR16-485,
TR40-485, or RS21)  The ELK M1 supports them.


"Ray" <RayWBo@xxxxxxxxx> wrote in message
news:bef814ae-cd18-4f91-b85c-0d9037bba685@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Hello all,
>
> Has anyone used the RCS RS-485 keypad with an ELK M1? From a quick
> read it appears they should be compatable. Considering it as an "easy"
> way to set temperature should I choose not to install a thermosat
> (mentioned in my earlier post) and perhaps a cheaper interface (but
> not as nice) than the ELK touch screen.
>
> Thanks, Ray