Using RCS RS-485 8-Button LCD Keypad with ELK M1
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Posted by Ray on January 22, 2008, 4:55 am
Please log in for more thread options 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 | |||||||||||||
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Posted by R. Lejeune on January 22, 2008, 12:32 pm
Please log in for more thread options 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. | |||||||||||||
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Posted by Ray on January 22, 2008, 1:44 pm
Please log in for more thread options > I don't think it would be quite that easy.
s.
> > First of all, the ELK M1 RS-485 bus and the RCS bus run at different speed= > You'd have to connect the RCS Keypad to a Serial Port Expander (M1XSP) to
uery
> get the baud rate to 9600. > Also, the RCS keypad is a polled device. =A0You'd have to write rules to q= > the keypad, then write rules to capture the response(s).
5,
> > Have you thought about using RSC thermostats and temp sensors? =A0(TR16-48= > TR40-485, or RS21) =A0The ELK M1 supports them.
> > > > > > > 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- Hide quoted text -
>
> - Show quoted text - RL, Thanks for your reply. Was planning on the Serial Port Expander as needed that for my UPB lighting already in place. Didn't realize I would have to wrte rules though. All indicators from the help I recieved on this board point to going with thermostats and biting the bullet on the ELK touch$creen if I want a fancy interface without relying on a PC. I will take a close look at the RCS thermostats you recommended. Thanks again, Ray | |||||||||||||
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>
> 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