From: Marc M. <ma...@me...> - 2009-05-19 22:52:31
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On Tue, May 19, 2009 at 05:42:42PM -0500, Joel Davidson wrote: > Marc- > > I didn't see anyone answer your RC-80 questions so I'll try... Thanks :) > Basically it's a fully programmable thermostat for a single zone, > hvac system with an rs-232 serial interface. Using the serial > interface you can query the status and programming of the 'stat, > and you can also remotely set the programming, set points and state > of your hvac system. It doesn't have any auxiliary i/o available. Cool. So it sounds like my solution may be to use an insteon I/O link to know when my slave (dumb) thermostat opens the subzone damper in the master bedroom. When that happens, mh will receive a signal via the PLM and can I then just tell the RC-80 to start heating or cooling until I tell it to stop, or do you give it a target temperature and it stops on its own? And when you say "query status", it obviously means you know what temperature it sees, but also whether it's at idle, actively heating, cooling, and what its target temperature is? If I get mh involved in the middle, I don't think I'll need aux I/O, so I should be good there. > As I recall, HAI sells a version for heat pump systems if you need > that. Won't need that. Is there a master web page that you found this info on? My google searches haven't returned anything on the RC-80's RS232 communication capabilities. Thanks for the details, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems & security .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ |