Thanks, that I have and posted on this thread a while ago.
For me it was about writing to the registers that’s a challenge. For example, how did you if you did write to the offset which is a slider from -10 to +10?
Hi Everyone, just to let you know I have tried the beta of the upcoming nibe integration for my S1255.
Works ok with a few tweaks needed. The integration has over 1000 entities as it covers the most of the nibe range so its a lot time to to go through each entitiy and check what is works for my specific model.
Still have not gone through all of them but this is what i have so far.
Some entities like the “More Hot Water” is a slider with a range of -128 to +127 where as on the MyUplink app its a simple on off switch.
It sort of works if you slide it all the way to +127.
Offset works well and for some functions like Hot Water Demand Mode its a slider but will figure a way to make them into buttons.
How did you get the offset to work with negative values? I have script sending offset values with buttons both increase and decrease function. Positive values works fine, but going negative will return error: Error while executing automation automation.decrease_offset_curve: value must be at least 0 @ data[‘value’][0]
I dont understand where the at least 0 is coming from.
script:
alias: Nibe_heating_curve
fields:
offset:
description: Heat Curve offset
default: 0
example: 0
sequence:
- service: modbus.write_register
data:
address: 30
slave: 1
value: "{{ offset }}"
hub: Nibe
mode: single
That comes with the integration which is now available for S series pumps.
Try in your automation 0.0. All values should have a decimal.
That’s if you don’t want the integration. The integration was released today with the update.
Hi Everyone, there is a new thread now for those who have installed the Nibe integration to control S series pumps.
You can find it here: https://community.home-assistant.io/t/discussions-about-nibe-s-series-and-the-integration/499985
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Hello,
We’ve stil got an SMO40 with a S2125 heatpump. The code from above i use to read some values. I also want to change the room setpoint and the More WarmWater function. This last both options I can’t get stil working. Read out things is working. The list with registers I verified and changed at some points. I have the registerlist from the SMO by the USB stick.
But i stil get an Modbus error:
Pymodbus: NIBE S2125: Exception Response(132, 4, IllegalFunction)
Is there anyone who knowes where i need to check thing?
I still found the cause of the Error. There was an register which wasn’t give the right answer. Now i found the right registernumber for the suction gas value and the problem is solved.
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Does anyone know how you change the set point for the room sensor on a S320?
I’ve got a sensor called “number.room_sensor_set_point_value_climate_system_1_40207” but the value does not correspond to value in the image above.
I would guess something like number.external_adjustment_with_room_sensor_climate_system_1_40056_2.
This shows for my nibe smo s40.I am not using room thermostat so i can not test it.
I have a Nibe S1255-6PC with an RMU S40 room thermostat.
In this thread I have found several registers that seem to work fine, but I don’t get the RMU S40 temp. working.
I’m using register 116 as found above in this thread with following settings:
name: "Room Temperature" # BT50
unique_id: "room_temperature_bt50"
unit_of_measurement: "°C"
data_type: int16
device_class: temperature
address: 116 # 116 for RMU S40, 26 for BT50
input_type: input # R
scale: 0.1
precision: 1
state_class: measurement
slave: 1
I always seem to get a value of -3276.8 which is exactly scaled 0.1 of minimum value for iint16 which is -32768.
When I try to swap: byte, I get a positive value of 12.8 degrees Celcius, but this is not correct since the real temp is somewhere between 19 and 20 degrees.
Can anyone see what I’m missing here?
I have some issues getting the current showing for different phases. It seems the config is a multitude off. Does anyone have this working?
And the sensor config:
- name: "Nibe Current Phase 2"
unique_id: "nibe_current_be2"
unit_of_measurement: "A"
data_type: uint32
device_class: current
address: 48
input_type: input
scale: 0.1
precision: 1
state_class: measurement
slave: 1
@ShadowArm I had the same thing. You need to swap the values like below, also you need to read 2 registers (that’s why they are two apart from each other:
- name: "Current Phase 1" # BE1
unique_id: "current_be1"
unit_of_measurement: "A"
data_type: uint32
count: 2
swap: word
device_class: current
address: 50
input_type: input # R
scale: 0.1
precision: 1
state_class: measurement
slave: 1
- name: "Current Phase 2" # BE2
unique_id: "current_be2"
unit_of_measurement: "A"
data_type: uint32
count: 2
swap: word
device_class: current
address: 48
input_type: input # R
scale: 0.1
precision: 1
state_class: measurement
slave: 1
- name: "Current Phase 3" # BE3
unique_id: "current_be3"
unit_of_measurement: "A"
data_type: uint32
count: 2
swap: word
device_class: current
address: 46
input_type: input # R
scale: 0.1
precision: 1
state_class: measurement
slave: 1
Do you happen to have a RMU S40 and get it showing a working temp?
Hi,
Thank you, I will test this out today!
I actually have a VVM S320. It should have same addresses for the phases and I have working sensors for temperatures and compressor frequency.
@ArnoPW were you ever able to get the RMU S40 room temperature? I’m struggeling with the same problem.
Yes, I may have overlooked earlier, but in the official integration I find the room temperature is available under:
sensor.room_average_temp_clim_system_1_bt50_30117
I haven’t however found the relative humidity.
Unfortunately it does not work for me, it returns status “Unknown”.
I’ve reinstalled HA with the latest version…
I was able to get the room temperature and humidity via myUplink integration.
Not the preferred way, but …
Has anyone managed to set the degree minutes to a negative value? It appears to work correctly setting it as a positive value, but set it to a negative value and it changes to 0.
I will change the Room Setpoint by Modbus for our S2125 (with SMO040). I can read the current setpoint at input 2505. How can I change that value?