search

nebulous / infinitude

Open control of Carrier/Bryant thermostats
MIT License
224 stars 50 forks source link

ASCII Protocol Information #30

Closed johnnyo21 closed 7 years ago

johnnyo21 commented 7 years ago

Just wondering if anyone has seen this document. Might make uncovering the meanings of the ASCII commands and responses a little easier.

Let me know if this helps, I have access to more documentation if need be.

johnnyo21 commented 7 years ago

The URL doesn't seem to have gone through. Is there a way I can upload a PDF?

nebulous commented 7 years ago

Hi @johnnyo21, if this is the Carrier document specifying the ASCII protocol for the System Access Module (Carrier document ID SAM01-01XA) then I believe we have seen it, but thanks for pointing it out. Unfortunately that document defines how to communicate with an absurdly priced intermediate box which translates simpler ASCII commands over RS232 into other commands on the RS485 ABCD bus. What all of us really need is someone with a SAM to record commands in and their resulting outputs. Particularly during the bootup/discovery sequence.

johnnyo21 commented 7 years ago

Oh I see, I didn't realize the ABCD was RS485. I am just getting started with setting up a home automation system and I came across this. I wish Carrier had a better solution for us. I might be able to borrow a SAM for a while and test. Looks like I need to purchase some things and get going. Thank you for your work on this by the way. I would like to help out if I can.