yes, will put it on my todo.should be an easy one and done sone
originally it was intented to be used to start from scratch andget some inital bytes from the heatpump.
If you get your heatpump already online and the version fits you get the parsed values in the debug log
in the thing paramaters you can find a parameter called waiting time. default value is set to 1200 ms
this its the time between the request. some heatpumps do have limited CPU and boud rate and do need some time to get a nother request. For my LWZ303i 2.06 the default value worked reliable
a possible scenario could be also that there is no response coming from the heatpump to the send request.
I am currently abroad and hae limited testing capabilities
By end of next week i will be able to upload a new version.
I will try to upload something today, but the code was not verified and tested on my heatpump
added the heating , ventilation and hot water program to the settings.
it was quit difficult to handle the bit and time information. the bit information, e.g. program enabled are now handled as a switch in the paperUI.
also stablized the and resolved bug.
Setting of parameter settings works well
i have started to create some charts in habpanel , will post some pictures soon.
I guess it is the EIB extern terminal to connect to.
Do you recommended a CAN to USB or RS232 converter ?
The link you provided contains all information to implement an additional binding or extend the existing binding.
The reason why i am interested is that the rs232 interface is quit slow and always works with register. on the CAN bus it seems you can access and set individual parameter.
Hi Peter,
due to a bereavement in our family I can not continue here for a while.
What I can tell you so far is that the exception (“Rounding necessary”) is gone. I think I understood how to adapt the XML file for a different firmware version. Please update your github code, then I can start coding later.
Will keep my git clone updated .
Sooner or later i will create a pull request.
I propose that with the knowledge i have from the Fhem etc. i could add the basic 5.09 and 5.39 channels. e.g. version, time , current measurements
As you can see i added quit a lot of additional channels for advanced parameters.
These once will require more testing.
i always have issues with the git ;-( and as i work on >2 binding i created an own branch for our stiebel binding.
In case you like to contribute please use this link here
no problem…
CAN bus interface at heatpump is availble but the binding today does not support the CAN bus protokoll.
i am not using a raspberry pi but youshould find in onlineshop plenty of rs232 solutions
maye this helps
nice to see the improvements. Thanks Peter, will try it the following days. I will report back my status
As for connecting options:
I had some trouble to connect my heatpump over the selfmade connector and after some searches around the direct CAN connection was a bit to risky for me. So i ended up connecting the heatpump via the internal USB. All you need is a USB A-to- B cable. The rest is configuring the binding
(ofc you have to find a way out of the heatpump casing. for me the gaps at the diagnostic port worked)