SMA Solar WebConnect

Tom_Rubbens · May 3, 2020, 8:07am

thanks for all your help, but still no luck.
ik keep getting a static value when i try 30517

i checked the HTML list of the modbus specs for my SMA, and in the sunspecs register there is no daily yield. (see html on my wetransfer upload: WeTransfer - Send Large Files & Share Photos Online - Up to 2GB Free).

so i think for now i’ll have to live with it
but realy thank you for your effort and help.

Newman · May 13, 2020, 9:31pm

Thank you. This was very helpful for me because the SMA Solar component doesn´t seems to work for me.

Everything looked fine until after sunset when some of the values i supposed to be 0. At that time Home Assisitant shows the value -2147483648 or 42949672.95. Any ideas how to fix this? I´ve understand that this isn´t just a random numbers. I have copied your sensor config.

mamra · May 14, 2020, 2:43am

It’s normal because the inverter cpu is not working.You can only use template sensor in HA and filter the results

Newman · May 30, 2020, 7:01am

Ok, I don´t really understand how to use the template to filter my results. I did try just to copy/paste your template without really understanding what it´s supposed to do. Should your template filter this?

  - platform: template
    sensors:
      modbus_sma_pv_power:
        entity_id: sensor.sma_power_ac
        friendly_name: 'Power Output'
        value_template: >-
            {% if states('sensor.sma_power_ac')|float < 0 or states('sensor.sma_power_ac')|float > 10000 %}
              0
            {% else %}
              {{ states('sensor.sma_power_ac') }}
            {% endif %}
        unit_of_measurement: "W"
        icon_template: mdi:flash-circle
      modbus_sma_pv_apparent_power:
        entity_id: sensor.apparent_power
        friendly_name: 'Apparent Power'
        value_template: >-
            {% if states('sensor.apparent_power')|float < 0 or states('sensor.apparent_power')|float > 10000 %}
              0
            {% else %}
              {{ states('sensor.apparent_power') }}
            {% endif %}
        unit_of_measurement: "VA"
        icon_template: mdi:flash-circle
      modbus_sma_pv_reactive_power:
        entity_id: sensor.reactive_power
        friendly_name: 'Reactive Power'
        value_template: >-
            {% if states('sensor.reactive_power')|float < 0 or states('sensor.reactive_power')|float > 10000 %}
              0
            {% else %}
              {{ states('sensor.reactive_power') }}
            {% endif %}
        unit_of_measurement: "VAr"
        icon_template: mdi:flash-circle
      modbus_sma_pv_residual:
        entity_id: sensor.sma_residual_current
        friendly_name: 'Residual Current'
        value_template: >-
            {% if states('sensor.sma_residual_current')|float < 0 or states('sensor.sma_residual_current')|float > 10000 %}
              0
            {% else %}
              {{ states('sensor.sma_residual_current') }}
            {% endif %}
        unit_of_measurement: "mA"
        icon_template: mdi:flash-circle
      modbus_sma_temperature:
        entity_id: sensor.sma_temp
        friendly_name: 'Inverter Temp'
        value_template: >-
            {% if states('sensor.sma_temp')|float < 0 or states('sensor.sma_temp')|float > 100 %}
              0
            {% else %}
              {{ states('sensor.sma_temp') }}
            {% endif %}
        unit_of_measurement: "°C"
      modbus_grid_frequency:
        entity_id: sensor.grid_frequency
        friendly_name: 'Grid Frequency'
        value_template: >-
            {% if states('sensor.grid_frequency')|float < 30 or states('sensor.grid_frequency')|float > 100 %}
              Not Measured
            {% else %}
              {{ states('sensor.grid_frequency') }}
            {% endif %}
        unit_of_measurement: "Hz"
      modbus_grid_voltage:
        entity_id: sensor.grid_voltage
        friendly_name: 'Grid Voltage'
        value_template: >-
            {% if states('sensor.grid_voltage')|float < 180 or states('sensor.grid_voltage')|float > 300 %}
              Not Measured
            {% else %}
              {{ states('sensor.grid_voltage') }}
            {% endif %}
        unit_of_measurement: "V"
      modbus_inverter_status:
        entity_id: sensor.sma_status
        friendly_name: 'Inverter Status'
        value_template: >-
            {% if is_state('sensor.sma_status', '307' ) %}
              OK
            {% elif is_state('sensor.sma_status', '303' ) %}
              Off
            {% elif is_state('sensor.sma_status', '455' ) %}
              Warning
            {% elif is_state('sensor.sma_status', '35' ) %}
              Fault
            {% endif %}
      modbus_grid_contactor:
        entity_id: sensor.sma_grid
        friendly_name: 'Grid contactor'
        value_template: >-
            {% if is_state('sensor.sma_grid', '51' ) %}
              Closed
            {% else %}
              Open
            {% endif %}

mamra · May 30, 2020, 7:18am

Yes you have to use the new template sensors on lovelace eg. sensor.modbus_sma_pv_power instead of the sensor.sma_power_ac…

poggialb · June 12, 2020, 1:21pm

Alternative option is to use https://github.com/SBFspot/SBFspot
My setup available here Integration with SMA Solar STP 10000TL-20 via SBFspot

tbar05 · August 31, 2020, 3:57am

@Tom_Rubbens did you ever solve the problem with the really long number for the daily output kWh reading? im having the same issue

Tom_Rubbens · August 31, 2020, 4:43am

No, still not solved. If you ever find a solution let let know😉

Matg · October 3, 2020, 1:56pm

Thanks for all the info in this thread

I have an older SunnyBoy and the webconnect module but no HTTP access. Just enabled the modbus and can now see the values.

chri5tian · November 18, 2020, 8:48am

I also got mine working today, I have a Sunny Boy 4.0. I have the same problem, PV Daily Yield displays a fixed value. Have you been able to fix it?
I also have managed to display the DC power values for each string of panels (I have two). After looking into the modbuslist document I created the following sensors:

name: DC Power Input A
unit_of_measurement: W
slave: 3
register: 30961
scale: 1
count: 2
data_type: int
name: DC Power Input B
unit_of_measurement: W
slave: 3
register: 30773
scale: 1
count: 2
data_type: int
I’m really happy with that, as I wanted a way to be able to quickly check what the two strings are producing.

ziezoenie · November 24, 2020, 1:30pm

I’m also from Belgium. Have got a sunny boy 1.5
Dont have any expirience with modbus ore python.
Can i get it zorking in YAML ore do i need the python stuf?
Thanks in advance

jbviperrr · December 4, 2020, 2:11pm

I’ve got this working in HA. I’m also from Belgium and i’ve got a sunny boy 1.5

hunkyn · December 8, 2020, 2:41pm

I am using the standard SMA integration from here https://www.home-assistant.io/integrations/sma. For some reason I do not get all values populated. Am I missing something or make changes other place where the documentation does not talk about?

jbviperrr · December 8, 2020, 7:12pm

your integration will be ok, but are you getting all the readings from the SMA?

hunkyn · December 8, 2020, 10:41pm

When I login in the SMA webconnect portal and I do see daily_yield values and few others. Some I could not find when I login as a user.

jbviperrr · December 9, 2020, 9:13am

I logged in as installer and put the tcp server “on”. After doing so i could use them all. Try to get that code from the company that installed yours or ask them to do it for you

hunkyn · December 9, 2020, 4:39pm

Updated the TCP and tried with user and installer accounts and I still do not see these values. I will keep researching and see if I am missing something from my end.

hunkyn · December 9, 2020, 8:55pm

I tried using the modbus option and i do get daily yield but that is a very long number as others have mentioned. Hopefully there is a fix for that and my setup for SMA is complete.

jbviperrr · December 10, 2020, 9:22pm

I use this and never had any issue. Hope this helps for you. keep me posted if it did

modbus:

type: tcp

host: IP from the inverter

port: 502

sensor:

platform: modbus

scan_interval: 60 #time in seconds for getting values

registers:
- name: SMA_Power_AC
  
  unit_of_measurement: W
  
  slave: 3
  
  register: 30775
  
  count: 2
  
  data_type: int
- name: PV Daily Yield
  
  unit_of_measurement: kWh
  
  slave: 3
  
  register: 30517
  
  scale: 0.001
  
  precision: 3
  
  count: 4
  
  data_type: uint
- name: PV Total Production
  
  unit_of_measurement: MWh
  
  slave: 3
  
  register: 30513
  
  scale: 0.000001
  
  precision: 3
  
  count: 4
- name: Grid Voltage
  
  unit_of_measurement: V
  
  slave: 3
  
  register: 30783
  
  count: 2
  
  scale: 0.01
  
  precision: 2
  
  data_type: uint
- name: Grid frequency
  
  unit_of_measurement: Hz
  
  slave: 3
  
  register: 30803
  
  count: 2
  
  scale: 0.01
  
  precision: 2
  
  data_type: uint
- name: SMA_temp
  
  unit_of_measurement: °C
  
  slave: 3
  
  register: 30953
  
  count: 2
  
  scale: 0.1
  
  precision: 1
  
  data_type: int
- name: SMA_status
  
  slave: 3
  
  register: 30201
  
  count: 2
- name: SMA_grid
  
  slave: 3
  
  register: 30217
  
  count: 2
- name: Insulation
  
  slave: 3
  
  register: 30225
  
  count: 2
  
  scale: 0.001
  
  unit_of_measurement: kOhms
- name: SMA_Residual_current
  
  slave: 3
  
  register: 31247
  
  count: 2
  
  scale: 1
  
  unit_of_measurement: mA
- name: Apparent Power
  
  unit_of_measurement: VA
  
  slave: 3
  
  register: 30813
  
  scale: 1
  
  precision: 0
  
  count: 2
  
  data_type: int
- name: Reactive Power
  
  unit_of_measurement: VAr
  
  slave: 3
  
  register: 30805
  
  scale: 1
  
  precision: 0
  
  count: 2
  
  data_type: int

platform: template

sensors:

modbus_sma_pv_power:

entity_id: sensor.sma_power_ac

friendly_name: 'Power Output'

value_template: >-

    {% if states('sensor.sma_power_ac')|float < 0 or states('sensor.sma_power_ac')|float > 10000 %}

      0

    {% else %}

      {{ states('sensor.sma_power_ac') }}

    {% endif %}

unit_of_measurement: "W"

icon_template: mdi:flash-circle

modbus_sma_pv_apparent_power:

entity_id: sensor.apparent_power

friendly_name: 'Apparent Power'

value_template: >-

    {% if states('sensor.apparent_power')|float < 0 or states('sensor.apparent_power')|float > 10000 %}

      0

    {% else %}

      {{ states('sensor.apparent_power') }}

    {% endif %}

unit_of_measurement: "VA"

icon_template: mdi:flash-circle

modbus_sma_pv_reactive_power:

entity_id: sensor.reactive_power

friendly_name: 'Reactive Power'

value_template: >-

    {% if states('sensor.reactive_power')|float < 0 or states('sensor.reactive_power')|float > 10000 %}

      0

    {% else %}

      {{ states('sensor.reactive_power') }}

    {% endif %}

unit_of_measurement: "VAr"

icon_template: mdi:flash-circle

modbus_sma_pv_residual:

entity_id: sensor.sma_residual_current

friendly_name: 'Residual Current'

value_template: >-

    {% if states('sensor.sma_residual_current')|float < 0 or states('sensor.sma_residual_current')|float > 10000 %}

      0

    {% else %}

      {{ states('sensor.sma_residual_current') }}

    {% endif %}

unit_of_measurement: "mA"

icon_template: mdi:flash-circle

modbus_sma_temperature:

entity_id: sensor.sma_temp

friendly_name: 'Inverter Temp'

value_template: >-

    {% if states('sensor.sma_temp')|float < 0 or states('sensor.sma_temp')|float > 100 %}

      0

    {% else %}

      {{ states('sensor.sma_temp') }}

    {% endif %}

unit_of_measurement: "°C"

modbus_grid_frequency:

entity_id: sensor.grid_frequency

friendly_name: 'Grid Frequency'

value_template: >-

    {% if states('sensor.grid_frequency')|float < 30 or states('sensor.grid_frequency')|float > 100 %}

      Not Measured

    {% else %}

      {{ states('sensor.grid_frequency') }}

    {% endif %}

unit_of_measurement: "Hz"

modbus_grid_voltage:

entity_id: sensor.grid_voltage

friendly_name: 'Grid Voltage'

value_template: >-

    {% if states('sensor.grid_voltage')|float < 180 or states('sensor.grid_voltage')|float > 300 %}

      Not Measured

    {% else %}

      {{ states('sensor.grid_voltage') }}

    {% endif %}

unit_of_measurement: "V"

modbus_inverter_status:

entity_id: sensor.sma_status

friendly_name: 'Inverter Status'

value_template: >-

    {% if is_state('sensor.sma_status', '307' ) %}

      OK

    {% elif is_state('sensor.sma_status', '303' ) %}

      Off

    {% elif is_state('sensor.sma_status', '455' ) %}

      Warning

    {% elif is_state('sensor.sma_status', '35' ) %}

      Fault

    {% endif %}

modbus_grid_contactor:

entity_id: sensor.sma_grid

friendly_name: 'Grid contactor'

value_template: >-

    {% if is_state('sensor.sma_grid', '51' ) %}

      Closed

    {% else %}

      Open

    {% endif %}

hunkyn · December 11, 2020, 2:07pm

Yes. I am using the same one. But for Daily Yield I get a very large number as others above have mentioned.

I have been looking into this more and the register 30517 is not a valid value for the version in US and that could explain why this random value. I looked into the sunny web portal and seems like it is calculating based on the 5 minute intervals it gathers data from the TotWh (30513) register and displaying in the UI. I am not sure how I go about adding the date parameter to this sensor and do the calculation to make it happen. This way we can calculate Today, Yesterday and daily generation from SMA.