Home Assistant and Eastron SDM72d with Protoss PW21

Configuration
1

Hello together,

I’m trying to connect the SDM72D with my Home Assistant, unfortunately without success.
I’m think the configuration is by the Protoss OK, because I can see in Protoss that the bytes are sending to my wallbox.
In my configuration.yaml I have:


# modbus communication
modbus:
  - name: "hauptzahler"
    close_comm_on_error: false
    retry_on_empty: true
    retries: 10
    delay: 10
    message_wait_milliseconds: 1000
    timeout: 10
    
    type: tcp
    host: 192.168.178.XX
    port: 8899
    sensors:
      - name: hauptzahler_phase_1_line_to_neutral_volts
        slave: 1
        address: 1
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: V
        device_class: voltage
        scan_interval: 30
      - name: hauptzahler_phase_1_current
        slave: 1
        address: 6
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: A
        device_class: current
        scan_interval: 30
      - name: hauptzahler_phase_1_power
        slave: 1
        address: 12
        input_type: input
        count: 2
        precision: 3
        data_type: float32
        unit_of_measurement: kW
        device_class: power
      - name: hauptzahler_phase_1_va
        slave: 1
        address: 18
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: VA
        device_class: power
      - name: hauptzahler_phase_1_va_reactive
        slave: 1
        address: 24
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: VAr
        device_class: power
      - name: hauptzahler_sum_of_line_currents
        slave: 1
        address: 48
        input_type: input
        count: 2
        precision: 3
        data_type: float32
        unit_of_measurement: A
        device_class: current
      - name: hauptzahler_total_system_power
        slave: 1
        address: 52
        input_type: input
        count: 2
        precision: 3
        scale: 0.001
        data_type: float32
        unit_of_measurement: kW
        device_class: power
      - name: hauptzahler_total_system_va
        slave: 1
        address: 56
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: VA
        device_class: power
      - name: hauptzahler_total_system_var
        slave: 1
        address: 60
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: VAr
        device_class: power
      - name: hauptzahler_frequency_of_supply_voltages
        slave: 1
        address: 70
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: Hz
      - name: hauptzahler_import_wh_since_last_reset
        slave: 1  
        address: 73
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: kWh
        device_class: energy
      - name: hauptzahler_export_wh_since_last_reset
        slave: 1
        address: 74
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: kWh
        device_class: energy
      - name: hauptzahler_total_system_power_demand
        slave: 1
        address: 84
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: W
        device_class: power
      - name: hauptzahler_maximum_total_system_power
        slave: 1
        address: 86
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: W
        device_class: power
      - name: hauptzahler_total_system_va_demand
        slave: 1
        address: 100
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: VA
        device_class: power
      - name: hauptzahler_maximum_total_system_va_demand
        slave: 1
        address: 102
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: VA
        device_class: power
      - name: hauptzahler_line_1_to_line_2_volts
        slave: 1
        address: 200
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: V
        device_class: voltage
      - name: hauptzahler_line_2_to_line_3_volts
        slave: 1
        address: 202
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: V
        device_class: voltage
      - name: hauptzahler_line_3_to_line_1_volts
        slave: 1
        address: 204
        input_type: input
        count: 2
        precision: 2
        data_type: float32
        unit_of_measurement: V
        device_class: voltage
        
# Example configuration.yaml entry
utility_meter:
  daily_energy:
    source: sensor.hauptzahler_total_system_power
    name: Daily Energy
    cycle: daily

  monthly_energy:
    source: sensor.hauptzahler_total_system_power
    name: Monthly Energy
    cycle: monthly

The IP and port are correct and the addresses should be correct too. Nevertheless I get this error by HA:

Logger: homeassistant.components.modbus.modbus
Source: components/modbus/modbus.py:385
Integration: Modbus (documentation, issues)
First occurred: 18:23:14 (1 occurrences)
Last logged: 18:23:14

Pymodbus: hauptzahler: Modbus Error: [Input/Output] Modbus Error: [Invalid Message] No response received, expected at least 8 bytes (0 received)

Can You help me?

EDIT: I have checked now once again and some bytes are sending via “Netp” to my synology where HA is installed (see attachment).

image
image1442×1423 143 KB

2

Protoss is working

Try sensors individually in yaml

You just have one error

Maybe its only one sensor failing

3

Thank You Nikita for Your reply. I have deleted now all and left only one. I get still the same error.
Perhaps is it because of wrong addresses? As attachment I send You the table with addresses. What should I write to get for example the informations about the first position in the table?

I have now:


modbus:
  - name: "hauptzahler"
    close_comm_on_error: false
    retry_on_empty: true
    retries: 10
    delay: 10
    message_wait_milliseconds: 1000
    timeout: 10
    type: tcp
    host: 192.168.178.XX
    port: 8899
    sensors:
      - name: hauptzahler_gesamt_leistung
        slave: 1
        address: 1
        data_type: float32
        unit_of_measurement: W
        device_class: power

but don’t work.

image
image1573×2048 275 KB

4 
modbus:
#
  - name: "hauptzahler"
    close_comm_on_error: true
    retry_on_empty: false
    retries: 3
    delay: 1
    message_wait_milliseconds: 250
    timeout: 5
    type: tcp
    host: 192.168.178.XX
    port: 8899
#
    sensors:
      - name: hauptzahler_gesamt_leistung
        slave: 1
        address: 1 # try with 1, 2, 30001,  30002
        count: 2
        input_type: input
        data_type: float32
        unit_of_measurement: W
        device_class: power
5

Hi,

I have tried now all the four addresses and unfortunately without success… still the same error.

6

image
image2730×1739 136 KB

image
image2732×1763 136 KB

Hello once again,

what I found now, that after restart of Home Assistant for the short time HA has a connection with the protoss but after ca. 1 minute loose the connection. Any ideas why?

Log: Pymodbus: hauptzahler: Modbus Error: [Input/Output] [Errno 32] Broken pipe

7

Hey, it works with my SDM72D

# Modbus
modbus:
- name: moxa
  type: tcp
  host: 192.168.2.149
  port: 502

  sensors:
    - name: SDM_Wallbox_Wirkleistung
      slave: 1
      address: 52
      count: 2
      input_type: input
      data_type: float32
      unit_of_measurement: W
      device_class: power
    - name: SDM_Wallbox_gesamte_kumulierte_Wirkleistung
      slave: 1
      address: 342
      count: 2
      input_type: input
      data_type: float32
      unit_of_measurement: kWh
      device_class: energy