OpenTherm

Post by **MagicNerd** » Tue Oct 23, 2007 11:08 am

Nou, lekker behulpzaam zijn we weer. Ik zoek het zelf wel uit en ben niet van plan om die info ook maar enigszinds te delen hiero.

Post by **MindBender** » Tue Oct 23, 2007 11:36 am

I'm sorry to hear you are disappointed Nerd, but you shouldn't: Despite you're a new member, you have received 13 replies on you post, spanning multiple pages. Some people hijacked your topic for their own purpose, but it's up to you bring that to their attention.

Furthermore: Nobody replied to your question, so I suppose nobody here has this information. And the one who do are not allowed to share it because it's supplied under a non-disclosure agreement. What did you expect? Did you expect everybody who doesn't have this info to reply to your post?

OpenTherm isn't Open at all. You would have known that if you would have taken the effort to read previous posts on this topic. You have to become a member of the OpenThem mafia to get the protocol, paying an annual $$$ fee and signing a contract not to share this information with non-members.

Finally; Post in ENGLISH. You are way out of line here; I won't even bother to translate your frustration. Good luck on your project!

Post by **Bwired** » Tue Oct 23, 2007 12:22 pm

Agree fully, I don't understand the outrage of magicnerd at all specially with 3 post on this forum and sharing no information at all.

Post by **MagicNerd** » Wed Oct 24, 2007 10:38 am

That's exactly what I mean. Because I only have '3 posts' nobody feels the need to help. I know from other posts that some here do have the info. And yes, Open-therm isn't open, but any info you gather your own is not illigal to share with others. European law, the right to gather the information that comes to you. Only when you buy the complete document, you are not allowed to copy it, that's something completely different.

En aangezien vrijwel iedereen hier nederlands is, is het een beetje zinloos om alles in het engels te doen lijkt me, ookal zou de site 'europees' moeten zijn.

Maar goed, ik kom er zo ook wel uit hoor, don't worry

Post by **MindBender** » Thu Oct 25, 2007 5:01 pm

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by MagicNerd
 That's exactly what I mean. Because I only have '3 posts' nobody feels the need to help.<hr height="1" noshade id="quote"></blockquote id="quote">I beg to differ: You have received plenty of responses of many helpful people and none of them deserve your cynism. Some people even subscribed to your post! And if you want to start a joined project of reverse engineering OpenTherm, that's what you should ask.<blockquote id="quote">quote:<hr height="1" noshade id="quote">I know from other posts that some here do have the info. And yes, Open-therm isn't open, but any info you gather your own is not illigal to share with others. European law, the right to gather the information that comes to you. Only when you buy the complete document, you are not allowed to copy it, that's something completely different.<hr height="1" noshade id="quote"></blockquote id="quote">I don't know how you got that impression, but I read this forum pretty accurately, especially posts regarding OpenTherm and it's not the impression I have got. If there was any reverse engineering going on here, it would have been discussed more explicitly.
I know some people here are involved in Domotica professionally and some of them do have a copy of the protocol, but they signed the non-disclosure agreement personally. You can't be angry at people just because they're not willing to violate their personal integrity for you.<blockquote id="quote">quote:<hr height="1" noshade id="quote">En aangezien vrijwel iedereen hier nederlands is, is het een beetje zinloos om alles in het engels te doen lijkt me, ookal zou de site 'europees' moeten zijn.<hr height="1" noshade id="quote"></blockquote id="quote">Nobody forces you to be here.<blockquote id="quote">quote:<hr height="1" noshade id="quote">Maar goed, ik kom er zo ook wel uit hoor, don't worry<hr height="1" noshade id="quote"></blockquote id="quote">I am not worried, not at all. But here's some free advice: I've seen better men try, and fail.

Post by **amelia** » Sat Nov 24, 2007 5:18 pm

Hi to all,

let me tell a little story.
In the 1972 (more or less) the MEMOREX corp. began to build line-printers and disk-drivers to be connected to IBM370 series mainframe.
The IBM corp. started a lawsuit against MEMOREX and lost, not only, the IBM was forced to make public all the parameters of devices's attachments (interfaces) signals.
End of the story.

The US and EU law provides that the manufacturer must make available to the CUSTOMER all information about external interface's signals of the equipment.

In my opinion The OpenTherm Consortium seems to be not following these rules, but that does not matter.

In the WEB there are (not a lot of) documents about the OpenThem's protocol.
The HW bidirectional-interface circuit is lacking.

I purchased the Elektuur article; I build the interface; I am able to view the signal; I CAN NOT WRITE.
My Ecoflam (IT) Bluette 107 HVAV is equipped with a Siemens board with a remote Siemens QAA73.110/153 that I use to sniff the protocol.
I hope that someone, of this forum, builds the HW serial interface (the remote controller part) and I promise to make public the SW program (PIC18 C language) when all will go OK.

The other European consortium EIB is not better than the OpenTherm, but we have the TP-UART that solves all.

amelia

PS.
In this kind of forum we must keep away every NON TECHNICAL subjects.

Post by **Bwired** » Tue Nov 27, 2007 8:31 pm

I have build the same Elektuur interface but was not able to view the information of the opentherm hvac system. Do now why, perhaps my software was not right or its because I have a Nefit which, as they tell, have an slightly different opentherm protocol. I now have the Opentherm Service interface which I'm trying to reverse engineer on the protocol. No luck so far. I can read the info with the existing Nefit software. I will also keep this forum up to date about my findings.

Post by **gason** » Thu Dec 13, 2007 2:53 pm

hello guys,

i hope some one can help me with my problem.
my heting solution is Elko Klöckner + Siemens QAA73 controller.
both devices communicate over open therm plus.
my questions are:
- are open therm and plus compatible?
- can i use the open therm interface suggested by Bwired in this tread for read /write the settings? which software can be used here? possible to buy an ready to use interface? -> http://www.domoticaforum.eu/topic.asp?T ... =opentherm
- is it possible to replace the original QAA73 controller (this work very well but no PC connection possible) whit other one who can be connected to PC or X-10 (not implemented yet) directly for read/write and visualisaton on the server?

Thank you in advance for suggestion.