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dkjonas / Wavin-AHC-9000-mqtt

Esp8266 mqtt interface for Wavin AHC-9000/Jablotron AC-116
MIT License
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Support for Wavin-AHC-9000 2-zone control unit? #16

Closed nens90 closed 4 years ago

nens90 commented 4 years ago

Hey Jonas

This is a very cool project and i'm eagerly trying to get it to work. I have followed all the instructions and looked through all the reported issues to compare, but still no luck.

I have tried to scope the output of the MAX3485 and the signal looks fine. Then I came to wonder, since you are mentioning that there is 16 channels on the Wavin AHC-9000/Jablotron AC-116, but I am trying to use the 2-zone version.

Do you know if the 2-zone Wavin AHC-9000 control unit is compatible with your implementation ?

Kind regards Jens Nielsen

dkjonas commented 4 years ago

I can't find much documentation for the 2 channel version. Not sure it uses the same protocol. I read somewhere that the 2 channel version is not compatible with the Wavin display which could be an indication that is using a different protocol than the 16 channel version.

If you can provide a picture of the internals of the device (without cover) and/or a pdf of the installation instructions, I will check.

nens90 commented 4 years ago

Thanks for the fast reply =) Yah, okay. It looks like form the installation instructions, that the RJ-45 connector is a service port. Whatever that means.

wavin-ahc-9000 Wavin AHC 9000 styreenhed til gulvvarme - PDF.pdf

dkjonas commented 4 years ago

Not much information in the pdf. The circuit looks like the rj45 connector could be rs422 like the 16ch version, so maybe there is hope. You can try to ask Wavin for documentation on the protocol. They responded quickly when I asked for the 16ch docs.

nens90 commented 4 years ago

Yes, the transiver connected to the RJ-45 is RS422. I will try and ask Wavin. Thanks for your support =)

jmork commented 1 year ago

@nens90 I wonder, did you ever get things working with the 2ch version, or get an answer from Wavin? I would like to do the same thing...

stefboerrigterWavin commented 1 year ago

I would say that the 2ch works similar to the 16 channel variant with respect to modbus commands. (except for the scale in outputs / rooms)

jmork commented 1 year ago

I have now contacted Wavin technical support, and according to them the 2 ch. version doesn't support modbus. I am currently waiting to know if another protocol is supported.