Goedenavond,
Ook ik heb een Remeha Toros en zou deze graag willen intregreren in Home assistant.
Ik maak gebruik van het Tomos platform en dit werkt prima voor het uitlezen en wijzigen van parameters maar je kunt hem niet aansturen zo ver ik weet.
Ik ben zelf installateurs heb contact gezocht met Remeha over de vermeende API en de Modbus aansluiting.
Hun antwoord op de modbus aansluiting:
hierbij ontvangt u de beschikbare informatie over ModBus aansluiting op de Toros Vision.
Remeha kan hier verder geen ondersteuning op geven;
ModBus zit erop vanaf Firmwareversie C30.02, dus mogelijk is er wel een firmware update nodig.
De standaard instellingen zijn:
Address: 1 (Microcom 0x422A of 0x82CD)
Baud rate: 19200 (Microcom 0x4243 of 0x82CE)
Parity: 8N1 (Microcom 0x424C of 0x82CF)
Deze parameters zijn eventueel via Microcom te wijzigen.
De connector die je voor ModBus gebruikt is X9.
image002.png
Verder ook nog gevonden;
Inprincipe leveren wij geen modbus assistentie, omdat we de kennis hier niet van hebben.
Een collega heeft wel nog een document gevonden waar de gevraagde gegevens in staan, maar of alles klopt en of het intussen nog op deze manier werkt is voor eigen risico van de klant en gaan wij als remeha ook geen ondersteuning op leveren.
Bijgevoegd het gevraagde scherm en hieronder wat in 2019 de werkwijze was die wij dus niet hebben kunnen valideren.
__
Outside air temperature via Microcom / Modbus and OpenTherm.
Outside air temperature can be retrieved by several ways:
From Onboard sensor connected to X3.1
PAR201ENUM_OutsideTempSource has to be set to 1.
If onboard sensor is not connected, the Outside air temperature is not internally used, except OTC room setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is returned to communication interfaces.
If onboard sensor is shorted or disconnected, the Error 48 is generated. Outside air temperature is not internally used, except OTC setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is returned to communication interfaces instead. Error 48 is automatically cleared if sensor is connected.
From Microcom / Modbus communication interface
PAR201ENUM_OutsideTempSource has to be set to 2. Outside air temperature has to written to variable 0x35F7 at least every PAR202HOUR_OutsideTempTimeout hours. Otherwise Error 48 is generated. Valid range from -40 to +127 °C.
In case of Error 48, the Outside air temperature is not internally used, except OTC room setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is also returned to communication interfaces instead. Error 48 is automatically cleared if valid information about Outside air temperature is received.
From OpenTherm communication interface
PAR201ENUM_OutsideTempSource has to be set to 3. Outside air temperature has to written to OpenTherm ID27 at least every PAR202HOUR_OutsideTempTimeout hours. Otherwise Error 48 is generated. Valid range from -40 to +127 °C.
In case of Error 48, the Outside air temperature is not internally used, except OTC room setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is also returned to communication interfaces instead. Error 48 is automatically cleared if valid information about Outside air temperature is received.
Note: if Outside air temperature is written from communication interface, which is not selected by PAR201ENUM_OutsideTempSource, the written value is rejected.
Related Microcom / Modbus parameters
Class 7 ID
Name
meaning
unit
min
max
default
0x81C9
PAR201ENUM_OutsideTempSource
Outside temperature source selection (1=Onboard; 2=Modbus; 3=OpenTherm)
enumeration
1
3
1
0x81CA
PAR202HOUR_OutsideTempTimeout
Outside temperature timeout
hour
1
255
24
0x81DC
PAR220BF_CompProtection
Compressor protection for heating (BIT0=derived from evaporator inlet temperature; BIT1=derived from outside air temperature)
Bit field
0
3
0
0x81E0
PAR224S_EndSetpointLimit
Setpoint end limitation curve (for compressor protection during heating)
°C
10
90
30
0x8263
PAR355S_OTCmissingT
Outside temperature to be used with missing/wrong sensor
°C
-20
+30
-1
Related Microcom / Modbus variables
Class
R/W
ID
Name
Unit
Valid range
4
R W
0x35F7
Outside air temperature
tenth of °C
from -40 to +127 °C in case of write
Related OpenTherm IDs
Nr.
Msg
Type
Description
Implementation notes
27
R W
f8.8
Outside air temperature (°C)
Returns outside temperature. In case of sensor error returns DATA-INVALID. Temperature is limited to range from -40 to +127 °C.
Write attempt returns UNKNOWN-DATAID if it is outside of range from -40 to +127 °C or if it is not configured to receive outside temperature from OpenTherm. It is necessary to write outside temperature regularly (at least every 24 hours) if configured to receive outside temperature from OpenTherm.
Usage of Outside air temperature
Usage
Behavior in case there is no valid information about Outside air temperature
Standard setpoint calculation
No compensation
Room setpoint calculation
PAR355S_OTCmissingT is used instead
Automatic switching between heating and cooling.
Not executed
Inhibition of heating if outside air temperature is too high.
Not executed
Inhibition of cooling if outside air temperature is too low.
Not executed
Reading of OpenTherm ID27 Outside air temperature
Returns DATA_INVALID
Reading of Microcom Class 4 ID 0x35F7
Returns PAR355S_OTCmissingT
Electrical heaters
Not affected/disabled
Compressor protection during heating.
If PAR220BF_CompProtection BIT1 is set AND if condenser temperature is bigger than PAR224S_EndSetpointLimit, Error 60 is generated, and HP is blocked. Affects both central heating and domestic hot water.
hierbij ontvangt u de beschikbare informatie over ModBus aansluiting op de Toros Vision.
Remeha kan hier verder geen ondersteuning op geven;
ModBus zit erop vanaf Firmwareversie C30.02, dus mogelijk is er wel een firmware update nodig.
De standaard instellingen zijn:
Address: 1 (Microcom 0x422A of 0x82CD)
Baud rate: 19200 (Microcom 0x4243 of 0x82CE)
Parity: 8N1 (Microcom 0x424C of 0x82CF)
Deze parameters zijn eventueel via Microcom te wijzigen.
De connector die je voor ModBus gebruikt is X9.
image002.png
Verder ook nog gevonden;
Inprincipe leveren wij geen modbus assistentie, omdat we de kennis hier niet van hebben.
Een collega heeft wel nog een document gevonden waar de gevraagde gegevens in staan, maar of alles klopt en of het intussen nog op deze manier werkt is voor eigen risico van de klant en gaan wij als remeha ook geen ondersteuning op leveren.
Bijgevoegd het gevraagde scherm en hieronder wat in 2019 de werkwijze was die wij dus niet hebben kunnen valideren.
__
Outside air temperature via Microcom / Modbus and OpenTherm.
Outside air temperature can be retrieved by several ways:
From Onboard sensor connected to X3.1
PAR201ENUM_OutsideTempSource has to be set to 1.
If onboard sensor is not connected, the Outside air temperature is not internally used, except OTC room setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is returned to communication interfaces.
If onboard sensor is shorted or disconnected, the Error 48 is generated. Outside air temperature is not internally used, except OTC setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is returned to communication interfaces instead. Error 48 is automatically cleared if sensor is connected.
From Microcom / Modbus communication interface
PAR201ENUM_OutsideTempSource has to be set to 2. Outside air temperature has to written to variable 0x35F7 at least every PAR202HOUR_OutsideTempTimeout hours. Otherwise Error 48 is generated. Valid range from -40 to +127 °C.
In case of Error 48, the Outside air temperature is not internally used, except OTC room setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is also returned to communication interfaces instead. Error 48 is automatically cleared if valid information about Outside air temperature is received.
From OpenTherm communication interface
PAR201ENUM_OutsideTempSource has to be set to 3. Outside air temperature has to written to OpenTherm ID27 at least every PAR202HOUR_OutsideTempTimeout hours. Otherwise Error 48 is generated. Valid range from -40 to +127 °C.
In case of Error 48, the Outside air temperature is not internally used, except OTC room setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is also returned to communication interfaces instead. Error 48 is automatically cleared if valid information about Outside air temperature is received.
Note: if Outside air temperature is written from communication interface, which is not selected by PAR201ENUM_OutsideTempSource, the written value is rejected.
Related Microcom / Modbus parameters
Class 7 ID
Name
meaning
unit
min
max
default
0x81C9
PAR201ENUM_OutsideTempSource
Outside temperature source selection (1=Onboard; 2=Modbus; 3=OpenTherm)
enumeration
1
3
1
0x81CA
PAR202HOUR_OutsideTempTimeout
Outside temperature timeout
hour
1
255
24
0x81DC
PAR220BF_CompProtection
Compressor protection for heating (BIT0=derived from evaporator inlet temperature; BIT1=derived from outside air temperature)
Bit field
0
3
0
0x81E0
PAR224S_EndSetpointLimit
Setpoint end limitation curve (for compressor protection during heating)
°C
10
90
30
0x8263
PAR355S_OTCmissingT
Outside temperature to be used with missing/wrong sensor
°C
-20
+30
-1
Related Microcom / Modbus variables
Class
R/W
ID
Name
Unit
Valid range
4
R W
0x35F7
Outside air temperature
tenth of °C
from -40 to +127 °C in case of write
Related OpenTherm IDs
Nr.
Msg
Type
Description
Implementation notes
27
R W
f8.8
Outside air temperature (°C)
Returns outside temperature. In case of sensor error returns DATA-INVALID. Temperature is limited to range from -40 to +127 °C.
Write attempt returns UNKNOWN-DATAID if it is outside of range from -40 to +127 °C or if it is not configured to receive outside temperature from OpenTherm. It is necessary to write outside temperature regularly (at least every 24 hours) if configured to receive outside temperature from OpenTherm.
Usage of Outside air temperature
Usage
Behavior in case there is no valid information about Outside air temperature
Standard setpoint calculation
No compensation
Room setpoint calculation
PAR355S_OTCmissingT is used instead
Automatic switching between heating and cooling.
Not executed
Inhibition of heating if outside air temperature is too high.
Not executed
Inhibition of cooling if outside air temperature is too low.
Not executed
Reading of OpenTherm ID27 Outside air temperature
Returns DATA_INVALID
Reading of Microcom Class 4 ID 0x35F7
Returns PAR355S_OTCmissingT
Electrical heaters
Not affected/disabled
Compressor protection during heating.
If PAR220BF_CompProtection BIT1 is set AND if condenser temperature is bigger than PAR224S_EndSetpointLimit, Error 60 is generated, and HP is blocked. Affects both central heating and domestic hot water.
hierbij ontvangt u de beschikbare informatie over ModBus aansluiting op de Toros Vision.
Remeha kan hier verder geen ondersteuning op geven;
ModBus zit erop vanaf Firmwareversie C30.02, dus mogelijk is er wel een firmware update nodig.
De standaard instellingen zijn:
Address: 1 (Microcom 0x422A of 0x82CD)
Baud rate: 19200 (Microcom 0x4243 of 0x82CE)
Parity: 8N1 (Microcom 0x424C of 0x82CF)
Deze parameters zijn eventueel via Microcom te wijzigen.
De connector die je voor ModBus gebruikt is X9.
image002.png
Verder ook nog gevonden;
Inprincipe leveren wij geen modbus assistentie, omdat we de kennis hier niet van hebben.
Een collega heeft wel nog een document gevonden waar de gevraagde gegevens in staan, maar of alles klopt en of het intussen nog op deze manier werkt is voor eigen risico van de klant en gaan wij als remeha ook geen ondersteuning op leveren.
Bijgevoegd het gevraagde scherm en hieronder wat in 2019 de werkwijze was die wij dus niet hebben kunnen valideren.
__
Outside air temperature via Microcom / Modbus and OpenTherm.
Outside air temperature can be retrieved by several ways:
From Onboard sensor connected to X3.1
PAR201ENUM_OutsideTempSource has to be set to 1.
If onboard sensor is not connected, the Outside air temperature is not internally used, except OTC room setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is returned to communication interfaces.
If onboard sensor is shorted or disconnected, the Error 48 is generated. Outside air temperature is not internally used, except OTC setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is returned to communication interfaces instead. Error 48 is automatically cleared if sensor is connected.
From Microcom / Modbus communication interface
PAR201ENUM_OutsideTempSource has to be set to 2. Outside air temperature has to written to variable 0x35F7 at least every PAR202HOUR_OutsideTempTimeout hours. Otherwise Error 48 is generated. Valid range from -40 to +127 °C.
In case of Error 48, the Outside air temperature is not internally used, except OTC room setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is also returned to communication interfaces instead. Error 48 is automatically cleared if valid information about Outside air temperature is received.
From OpenTherm communication interface
PAR201ENUM_OutsideTempSource has to be set to 3. Outside air temperature has to written to OpenTherm ID27 at least every PAR202HOUR_OutsideTempTimeout hours. Otherwise Error 48 is generated. Valid range from -40 to +127 °C.
In case of Error 48, the Outside air temperature is not internally used, except OTC room setpoint compensation, where PAR355S_OTCmissingT is used instead. The PAR355S_OTCmissingT is also returned to communication interfaces instead. Error 48 is automatically cleared if valid information about Outside air temperature is received.
Note: if Outside air temperature is written from communication interface, which is not selected by PAR201ENUM_OutsideTempSource, the written value is rejected.
Related Microcom / Modbus parameters
Class 7 ID
Name
meaning
unit
min
max
default
0x81C9
PAR201ENUM_OutsideTempSource
Outside temperature source selection (1=Onboard; 2=Modbus; 3=OpenTherm)
enumeration
1
3
1
0x81CA
PAR202HOUR_OutsideTempTimeout
Outside temperature timeout
hour
1
255
24
0x81DC
PAR220BF_CompProtection
Compressor protection for heating (BIT0=derived from evaporator inlet temperature; BIT1=derived from outside air temperature)
Bit field
0
3
0
0x81E0
PAR224S_EndSetpointLimit
Setpoint end limitation curve (for compressor protection during heating)
°C
10
90
30
0x8263
PAR355S_OTCmissingT
Outside temperature to be used with missing/wrong sensor
°C
-20
+30
-1
Related Microcom / Modbus variables
Class
R/W
ID
Name
Unit
Valid range
4
R W
0x35F7
Outside air temperature
tenth of °C
from -40 to +127 °C in case of write
Related OpenTherm IDs
Nr.
Msg
Type
Description
Implementation notes
27
R W
f8.8
Outside air temperature (°C)
Returns outside temperature. In case of sensor error returns DATA-INVALID. Temperature is limited to range from -40 to +127 °C.
Write attempt returns UNKNOWN-DATAID if it is outside of range from -40 to +127 °C or if it is not configured to receive outside temperature from OpenTherm. It is necessary to write outside temperature regularly (at least every 24 hours) if configured to receive outside temperature from OpenTherm.
Usage of Outside air temperature
Usage
Behavior in case there is no valid information about Outside air temperature
Standard setpoint calculation
No compensation
Room setpoint calculation
PAR355S_OTCmissingT is used instead
Automatic switching between heating and cooling.
Not executed
Inhibition of heating if outside air temperature is too high.
Not executed
Inhibition of cooling if outside air temperature is too low.
Not executed
Reading of OpenTherm ID27 Outside air temperature
Returns DATA_INVALID
Reading of Microcom Class 4 ID 0x35F7
Returns PAR355S_OTCmissingT
Electrical heaters
Not affected/disabled
Compressor protection during heating.
If PAR220BF_CompProtection BIT1 is set AND if condenser temperature is bigger than PAR224S_EndSetpointLimit, Error 60 is generated, and HP is blocked. Affects both central heating and domestic hot water.
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Misschien helpt jullie dit verder om een oplossing te vinden voor het aansturen van de Toros.
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Techneco heeft ook de 'Elga' warmtepomp. Ik meen dat er een topic is hier op Tweakers over iemand die een tooltje had gemaakt waarmee hij in het servicemenu kon komen. Wellicht dat dat aanknopingspunten geeft voor jouw situatie. Kan dat topic alleen niet weer vinden... 
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Ik heb zelf niet zo'n warmtepomp, maar vind het erg interessant om mee te lezen. Heb zelf destijds e.e.a. zo uit zitten pluizen voor m'n zonnepanelen omvormer.
Eigenlijk wat @
Als iemand een manier weet om de data daar makkelijk uit te trekken, houd ik me aanbevolen.
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Dus als ik de connector heb gevonden dan ga ik even een spitter maken zodat het wifi kastje samen met de usb kabel gebruikt kan worden. Ik kan dan in ieder geval ook de aansluiting buiten de WP brengen. 
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