Pretty sure about the first one, that was the only number that matched the WEM Portal. About the following 2 I am not exactly sure. But I think I still haven´t found what you call Glycol in (Sole In). I think I will add some extra temperature sensors to know Sole In and out. Do we have a common place where we can collect our findings?
Lelek62, is the Vorlauftemperatur with register 33104 working with your WGB8? I‘m having a WGB8 too but the Vorlauftemperatur is shown with a constant value of -3,276.8 °C. In the WEM portal I have two times „Vorlauftemperatur (Wärmeerzeuger)“ but one is showing a realistic value only (the ofter shows 0), so maybe with the WGB8 there is another register for the Vorlauftemperatur?
@chriscom2020
I use a Weißhaupt Split Heatpump (Split Wärmepumpe) WWP-LS-10-BR Modbus:
I share my whole code and instructions of how to configure your HA here:
You can also find a complete description of modbus codes.
If you have any feedback please write me here or open an issue.
@ravdev18
I have HA 11.5 and I have problems to get your code regarding the JAZ running I added in my templates_heatpump.yaml
- name: "value_jitter_integration_fix" # regarding correct power consumption measurements: see @rafdev in https://community.home-assistant.io/t/weishaupt-heatpump-integration-via-modbus/436823
state: >
{% set minutes = (now().hour * 60) + now().minute %}
{% set is_positive = (minutes // 10) % 2 == 0 %}
{% set value = 0.001 if is_positive else -0.001 %}
{{ value }}
- name: "heat_pump_electric_power"
unit_of_measurement: "kW"
device_class: power
unique_id: “0412660815061367648539”
state: >
{% set base_power = 0.017 + states('sensor.value_jitter_integration_fix') | float(default=0) + states('sensor.wp_leistungsanforderung') | float(default=0) * 0.0189 %}
{% set additional_power = 0 %}
{% if states('sensor.wp_e1_status') == '1' %}
{% set additional_power = additional_power + 3.5 %}
{% endif %}
{% if states('sensor.wp_e2_status') == '1' %}
{% set additional_power = additional_power + 3.5 %}
{% endif %}
{{ base_power + additional_power }}
attribute_templates:
last_update: 1
This however does not seem to work if I check the heat_pump_electric_power in seetings-> entities I do not see any values. The value_jitter_integration_fix fluctuates -0.001 and 0.001.
OR do I have to add your code to the sensors? and not within the templates file?
Regarding other automations Warm Water Push I am also not sure where to put the code.
I added it now to automations.yaml file. But It is not working I thought it would work automatically at 2pm but it is not…
Besides that I would like to connect my PV and lets say if my battery is 100% and there is still sun outside I want to store more energy in my house. I thougt about increasing the Raumsolltermparture or maybe use the SG Ready Anhebung (but that is only for warm water correct?)
I think the 42 105 is holding how many Kelvin the warm water should be heated above the given warm water temperature if the SG Ready function is active (default 5 Kelvin). It depends on your heat pump configuration what the SG Ready 1 and SG Ready 2 inputs are delivering. I’m using warm water overheating only. I didn‘t find a way to set the SG Ready state via modbus but solved it with a Shelly WLAN relais
@wonderer45 the heat pump has different Vorlauf circuits - looks like yours is not on #1 - if you look into the registers there are 3 different options.
Switch to the right one and receive the correct data ! if I recall the register schema is 33104 for #1 then 33204 for #2 … my installation used #3. After I did change the modbus code to the right sensor register all is good.
@chriscom2020 - yes correct on the jitter - you do need to add the jitter into the power sensor in order to keep the Riemann integration happy ! Just add the jitter into the calculated power sensor and it will correctly integrate power. It is for me very closely aligned to the real energy usage.
On the automation it is indeed as simple as adding the automation code for WW load into your automations.yaml file. You should see the automation in the settings automation area and you can even trigger it to run test. Might be just code formatting as the yaml is really column sensitive.
Several members on this group got my code into operations - so the code should work -
In the image however you can see the warmwater temperature does not alwayse follow the push. What good works is the time at 2pm the outer temperature sensor was showning that it was quite warm alwayse.
Is there a delta too big somwere adjustable? E.g. if the current warm water temperatur is still to high the push does not work? Or do I have to increase the time (30 min to 1h or so?).
Thanks rafdev18. I testet all 33x04 registers with no success. Finally I found a hint in the haustechnikforum which pointed to register 33111 - that works for my with my WGB8 sole heatpump, I’m getting the vorlauf temperature with a precision of 1/10 °C
measuring the electric power of the heatpump I use an Eltako power meter to measure the electric power (WW_eltako_power) consumed by the heatpump (Details under sesnsors section). Moreover I use the estimation of the heatpump electric power by rafdev (= heatpump_actual_electric_power). Displayed values:
Eltako measurements: WW_eltako_power (value not displayed in the night due to wifi)
Estimated heatpump electric power (by rafdev): heatpump_actual_electric_powers
total household consumption: load power (measured with pv inverter)
You can see that the @rafdev18 estimation is quite good (I need to scale this value up and thats it I guess
However also my eltako even though i use the S0 interface (which is a pain - is not so bad - also this value requries some scaling factors).
@MarkusLacht - yes you are absolutely right - if the hot water temperature did not drop yet bellow the 5 Celsius from the set temperature then the push command will not trigger.
For me not an issue as I only do a hot water push at 2 pm and 24h later the temperature difference is correct.
@MarkusLacht - this is pretty cool - thank you for reconfirming the consumption calculation based on the the Leistungsanforderung value.
I would be interested in the adjustment you need to make in order to better hit the measured values. I am pretty happy with the result but there is always room for improvement.
BTW I am able to calculate also based on the sensor the amount from grid and solar power for my heat pump and can display this accordingly just if you are looking for your next project.
Hello! I’m interested for managing my Weishaupt WWP LS13 BRE in home assistant , but I don’t see Modbus anywher in option or in the connection. I’ve an ethernet port for the wem portal. I can activate Wem portal (dont work for me, i need the Wheishaupt code for activate the heat pump), i can chose a Static IP ou DHCP but i can’t select modbus anywhere.
Some more german notes:
SGR1(35101) offen, SGR2(35102) zu: erhöhrter Betrieb (2)
Zu der Vorlauftemerperatur im Heizbetrieb und der WarmwasserSolltemperatur wird die eingestellte SG Ready Anhebung aufaddiert. TODO wert auf 2 oder auf 0 schalten?! fuer bspw. 10min?!
SG Ready Anhebung: 42105 - read write value
Anhebung Warmwasser Solltemperatur 4K
Vorlaufueberhoehung: → WW soll temperatur + Vorlaufueberhoehung 7K
Maximaltemperatur : → nur fuer Zwangsbetrieb SGR1 und SGR2 zu 60°
Hello
I also am very new to home assistant.
Could you please help where to copy the code.
I adjust my ip adress in the code for the modbus but i don’t see any sensors being added in home assistant.
The setup language off the heatpump is Dutch, should everything be translated before i paste the code?
Thanks for the help with my beginners problems
Tom
just if you are looking for your next project.