Daikin Altherma heat pump monitoring

Hi Alex,
What definition file are you using?
I got an EHSX08P50BB and the default isn’t working for me (i can see the entities for the ESP32, but nothing from the heatpump)

Edit: got it working, default works well

Hi.
Honetly I can’t remember.
I tried many and they were not so different. On my machine a couple of registers are not readable, so I’m missing some information needed for COP calculation. But if you don’t get ANY data, probably the problem is not the definition chosed…

Hello, I am using the definition file: PROTOCOL_S_ROTEX.h

with these values

#include "labeldef.h"
//  This file is a definition file for Rotex heat pump, technically looking like protocol S, but not using the same mapping.
//  Confirmed working for Rotex RDLQ014AA6V3.

LabelDef labelDefs[] = {
    // 0x50 not supported by RDLQ014AA6V3
    {0x50, 0, 103, 2, -1, "HP Sensor(kgcm2)"},
    {0x50, 1, 103, 2, -1, "XXX"},
    {0x50, 2, 103, 2, -1, "LP Sensor(kgcm2)"},


    // 0x53 seems to be a collection of booleans
    {0x53, 0, 152, 2, -1, "EV (pls)"},
    {0x53, 0, 200, 1, -1, "Umwälzpumpe"},
    {0x53, 2, 164, 1, -1, "Outdoor Fan (Upper)(rps)"},
    {0x53, 3, 164, 1, -1, "Outdoor Fan (Lower)(rps)"},
    {0x53, 3, 200, 1, -1, "Externe Heizung"},
    {0x53, 4, 200, 1, -1, "INV Comp. Frequency(Hz)"},
    {0x53, 5, 200, 1, -1, "Vorrang für Brauchwasser"},
    {0x53, 5, 200, 1, -1, "Komp. Vorwärmen"},
    {0x53, 6, 200, 1, -1, "Brenner hemmen Solaris"},
    {0x53, 6, 200, 1, -1, "52C Output"},
    {0x53, 7, 200, 1, -1, "20S (4-way) Output"},
    {0x53, 8, 200, 1, -1, "20R (SV) Output"},
    {0x53, 10, 200, 1, -1, "Kurbelgehäuseheizung"},
    {0x53, 11, 200, 1, -1, "Ener-Cut Output"},

    // Testing stuff....
    {0x54, 0, 153, 2, -1, "Kühl. Temp. flüssige Seite"},
    {0x54, 0, 103, 2, -1, "Saugluft für den Innenbereich Temp.(C)"},
    {0x54, 2, 103, 2, -1, "Innenwärmetauscher Temp.(C)"},
    {0x54, 2, 153, 2, -1, "Rücklauftemperatur(C)"},
    {0x54, 4, 153, 2, -1, "Auslass Wassertemperatur"},
    {0x54, 4, 103, 2, -1, "Außenluft temp.(C)"},
    {0x54, 6, 153, 2, -1, "Vorlauftemperatur(C)"},
    {0x54, 6, 103, 2, -1, "Außenwärmetauscher temp.(C)"},
    {0x54, 8, 153, 2, -1, "Warmwasserbehälter Temp.(C)"},
    {0x54, 8, 109, 2, -1, "Auslassrohrtemperatur(C)"},
    {0x54, 10, 103, 2, -1, "Fin Temperatur(C)"},
    {0x54, 12, 312, 1, -1, "Delta-Tr(deg)"},
    {0x54, 12, 101, 1, -1,"Delta-Tr(deg)"},
    {0x54, 12, 101, 1, -1, "Wassererwärmungstemperatur(Grad)"},
    {0x54, 13, 151, 1, -1,"R/C Sollwert(C)"},
    
    // Byte 12 seems to be a 1 byte value, evolving during day in continuous way
    // 0x1b mid-day, 0x24 mid night -> some delta temp??
    
    {0x55, 0, 201, 1, -1, "Betriebsart"},
    {0x55, 1, 204, 1, -1, "Fehlercode"},
    {0x55, 2, 204, 1, -1, "Thermo Off Error"},
    {0x55, 3, 204, 1, -1, "Warning Code"},
    {0x55, 4, 204, 1, -1, "Caution Code"},

    // TODO: seems to reply on 0x56 as well, but not used by dchecker...
    {0x56, 0, 103, 2, -1, "????"},

// Testing stuff....

    {0x54, 1, 103, 2, -1, "Andrej1"},
    {0x54, 3, 153, 2, -1, "Andrej3"},
    {0x54, 7, 153, 2, -1, "Andrej7"},
    {0x54, 14, 153, 1, -1, "andrej14"},
    {0x54, 15, 153, 1, -1, "andrej15"},
    {0x54, 16, 153, 1, -1, "andrej16"},
    {0x54, 16, 151, 1, -1, "andrej17"},
    {0x54, 16, 109, 1, -1, "andrej18"},
    {0x54, 19, 153, 1, -1, "andrej19"},
    {0x54, 20, 153, 1, -1, "andrej20"},
    {0x54, 21, 153, 1, -1, "andrej21"},
    {0x54, 22, 153, 1, -1, "andrej22"},
    {0x55, 5, 151, 1, -1, "andrej55x5"},
    {0x55, 6, 204, 1, -1, "andrej55x6"},
    {0x55, 7, 204, 1, -1, "andrej55x7"},
    {0x55, 8, 204, 1, -1, "andrej55x8"},
    {0x55, 9, 204, 1, -1, "andrej55x9"},
    {0x56, 0, 103, 2, -1, "????"},
    {0x56, 1, 103, 2, -1, "????1"},
    {0x56, 2, 103, 2, -1, "????2"},
    {0x56, 3, 103, 2, -1, "????3"},
    {0x56, 4, 103, 2, -1, "????4"},
    {0x56, 5, 103, 2, -1, "????5"},
    {0x56, 6, 103, 2, -1, "????6"},
    {0x56, 7, 103, 2, -1, "????7"},
    {0x56, 8, 103, 2, -1, "????8"},


};

// Override protocol
#define PROTOCOL 'S'

Thanks a lot for the great work being done. Is anyone using the EKHBX016BA3v3?

In my case these ones change very fast but i still cant correlate and understand these parameters
{0x54, 1, 103, 2, -1, “Andrej1”},
{0x54, 3, 153, 2, -1, “Andrej3”},
{0x54, 7, 153, 2, -1, “Andrej7”},

Regards

1 Like

Thanks, i’ll try
I got that working with default.h, i am now just having problems with OTA (upload fails at random % with “Error 1”
Good WiFi (stick litterally 2m from the router and signal around -45dbm)

***Solved: a flashed again from the PC and the OTA started working again