OpenTherm protocol PDF document

[Bwired]

Try it out.
For me its not possible anymore to use the Nefit service key.
I get a UBA error or something and the program aborts
But it probably work for you and then its possible to get a lot of data form the nefit.

[Menno]

For the people that have Remeha boilers:

http://domoticaforum.eu/viewtopic.php?f=16&t=5595

[alexcat]

Hi all,

I'm looking for the opentherm protocol specification 3.0.
I requested it to the opentherm association but they said that it is available only to the members.
Can anyone help me to find it? Any link?

Thank you

[artmit]

Hi all,
Recently I connected together Viessmann Vitodens 100-W, De Dietriech iSense (originally Remeha I think) and OpenTherm Gateway. Generally, it works great:)
I join to kindly request of Alexcat about sharing open-therm specification in. v.3, which can route me to discovering what do mean such OT messages: 99,109,110,111,112.I also have impression, that some of DHW functions do not work as I expect
Maybe someone has that file close at hand?
Thanks!
Artur