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bbqkees / Nefit-Buderus-EMS-bus-Arduino-Domoticz

Readout of EMS protocol datagrams and transfer of data to Domoticz via Arduino
MIT License
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How can I write values? #16

Closed lobocobra closed 5 years ago

lobocobra commented 5 years ago

I have a Buderus GB125 oil heating and have the EMS Bus interface board and the WEMOS. I can telnet to the WEMOS and see all data like expected.

What I want to do I would like to change the temperatures on my Buderus GB125 and set the night / day status

What I tried I telnet to wemos and saw that the 2 commands should do the trick: thermostat mod 0 thermostat temp 23 => I would now expect that my RC35 switches to night mode and temp changes to 23° => But nothing is changed in the RC35

Hints needed Does it not work with RC35? Can somebody say it? Do I have to create a telegram ? How Can I send it? https://emswiki.thefischer.net/doku.php?id=wiki:ems:telegramme

Many thanks for some hints to be able to change settings.

lobocobra commented 5 years ago

It seems that the data is written but my RC35 does not change thestatus. Example: If I set the heating manually to night mode, my rc35 keeps showing auto mode. => same if I set temperature.

Is this a problem with the RC35, that it does not listen to the BUS and thus the RC35 shows the old (overwritten) data?

Does anyone know this?

lobocobra commented 5 years ago

A probable cause could be that my house has a floor-heating and the used circuit is NR2. => I currently try to send telegram but, I have problems to find plausible values.

If anyone managed to change day/night or the temperature, please give me a hint...

lobocobra commented 5 years ago

I found the solution... The problem was that this code assumes that you have 1 circuit. => but if you have a floor heating it is circuit 2.

To change the day / night status you need to.... send 0b 90 47 07 01 => to show the current status send 0b 10 47 07 02 => to set the status on automatic (2)

means you need to find out the codes... go here.... https://emswiki.thefischer.net/doku.php?id=wiki:ems:telegramme#schaltzeiten_allgemein

proddy commented 5 years ago

For the record, the code was designed that way and its clearly mention in the documenaton here "RC35 with support for the 1st heating circuit (HC1)". Why don't you contribute and extend the code to support the other HCs?

lobocobra commented 5 years ago

I am on it :) => Just wanted to leave a trace here for others so that they might use it.