communication vbus solar resol

[lpala]

Is there a solution to read or write with logic machine reactor or gateway to a RESOL solar automation, vbus dial?

for:

- making a visualisation with read parameters
- modify some of them with my knx installation or use it in script.

vbus it seems to be a special RS 485 or 232 bus. It's perhaps same as Viessmann KM bus.

Hi,
you can use Resol LAN adapter (http://www.resol.de/index/produktdetail/...sprache/en).

I've implemented VBus protocol (by TCP connection) in LUA to get it working with LM. I think that the code can be easily adpted for serial connection.
I'm able to monitor the plant status (temps, relays, etc). 
But i've not found docs for controlling the plant (but I really didnt need it).

The code must be cleaned and has no comment in it (sorry).
I'll glad to share if you are interested.

Luca

Dear Luca,

I have created the different user libraries and the resident script. However, I got the following error:
Userlibrary luavbus: Line 116 attempt to index field 'socket' (a nil value)

I also tried to activate debug5 by changing warn in debug5 in the resident script but I don't get any debug messages.

do you have any ideas how to solve?
regards,
Joost

You're right, i've just uploaded a newer version in previous post.
This solves lua error, but you have probably some problem connecting the lan adapter, as the connect method return a nil.

Luca

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Hello, I have found this document to implement Vbus Protocol.

It's not very easy to understand for a beginner

The most of the protocol useful for integration with domotics is already in.
It's probably full of bugs.
Feel free to correct it and post them.

Luca