Mawo
14. August 2025 um 12:19
1
Hallo zusammen,
ich bin aktuell in der Arbeit meine Lüftungsanlage von Zehnder in Home Assistant zu implementieren. Da mein Kommunikationsmodul das neue Comfoconnet Pro ist funktionieren die aktuellen Integrationen nicht. Allerdings lässt sich die Pro-Box über Modbus TCP steuern was mir eigentlich auch erstmal ausreicht.
Nun zu meiner Frage bzw. Problem. Die Sensoren zum auslesen der Temperaturen, usw. funktionieren soweit.
allerdings komme ich bei der Lüftersteuerung nicht weiter. Habe das über Switches versucht und auch über Templates. Bei letzterem habe ich zwar das Template aber dieses schaltet die Lüftung nicht gemäß der Auswahl zu.
Danke schonmal für die Unterstützung!
nachfolgend mal der Code der Modbus Einstellung und des Templates:
template:
#Select-Entität für die Zehnder Lüftung
- select:
- name: "Ventilation Preset"
unique_id: zehnder_ventilation_preset_select
# Der Zustand wird aus dem Modbus-Sensor gelesen und in lesbare Namen umgewandelt.
state: >
{% set presets = {0: "Away", 1: "Preset 1", 2: "Preset 2", 3: "Preset 3"} %}
{% set state = states('sensor.ventilation_preset_state') | int(0) %}
{{ presets[state] if state in presets else 'unknown' }}
# Die Optionen werden jetzt als ein einzelner String definiert, um den Fehler zu umgehen.
options: "{{ ['Away', 'Preset 1', 'Preset 2', 'Preset 3'] }}"
# Die select_option-Aktion sendet den Befehl über Modbus an die Lüftung.
select_option:
- service: modbus.write_register
data:
hub: "zehnder_comfoconnect_pro"
slave: 1
address: 1
# Der ausgewählte String wird in den entsprechenden Integer-Wert umgewandelt und als Liste übergeben.
value:
- >
{% set options_map = {"Away": 0, "Preset 1": 1, "Preset 2": 2, "Preset 3": 3} %}
{{ options_map[option] }}
Mein Modbus ist wie folgt eingestellt:
modbus:
- name: "zehnder_comfoconnect_pro"
type: tcp
host: "192.168.178.81"
port: 502
switches:
- name: "Zehnder Boost Modus"
unique_id: zehnder_boost_modus
slave: 1
address: 7
command_on: 1
command_off: 0
Hallo, ich habe seit gestern die Comfoconnect Pro in Betrieb. Laut Zehnder Doku muss man vom Register 1 abziehen für die korrekte Adresse. Ich habe dein Script mal ausprobiert mit der Ergänzung “write_type: coil” stellt sich die Lüftungsanlage auf Away.
Anbei eine YAML Datei für Modbus
Über ein angepasstes Dashboard kannst ud dann alles Steuern. Beim Booster ist z.B. wichtig, auch eine Zeit mitzugeben, sonst geht der Booster nicht an. Ich habe das über Helper und Variabeln gemacht.
# modbus.yaml — Home Assistant Modbus TCP for Zehnder ComfoConnect Pro
# Source: Zehnder ComfoConnect PRO installer manual (Section 9: Third‑part communication protocols).
# Addresses below use 0‑based PDU indexing (manual 0x0001 → address: 0).
# Temperatures are °C×10 (scale 0.1). Humidity is plain % (no scaling). CO₂ is ppm.
# This file defines: sensors (input registers), binary_sensors (discrete inputs), and switches (coils).
# Holding registers (writeable values) are controlled via service calls (see notes at end).
- name: zehnder
type: tcp
host: 000.000.000.000 # ← set to your ComfoConnect Pro IP
port: 502
timeout: 5
delay: 0
message_wait_milliseconds: 0
sensors:
# ---- Status & errors (Input Registers) ----
- name: ComfoAirQ Attic Connection state
unique_id: comfoairq_attic_connection_state
slave: 1
address: 0 # 0x0001
input_type: input
data_type: uint16
precision: 0
scan_interval: 10
- name: ComfoAirQ Attic Active error 1
unique_id: comfoairq_attic_active_error_1
slave: 1
address: 1 # 0x0002
input_type: input
data_type: uint16
scan_interval: 10
- name: ComfoAirQ Attic Active error 2
unique_id: comfoairq_attic_active_error_2
slave: 1
address: 2 # 0x0003
input_type: input
data_type: uint16
scan_interval: 10
- name: ComfoAirQ Attic Active error 3
unique_id: comfoairq_attic_active_error_3
slave: 1
address: 3 # 0x0004
input_type: input
data_type: uint16
scan_interval: 10
- name: ComfoAirQ Attic Active error 4
unique_id: comfoairq_attic_active_error_4
slave: 1
address: 4 # 0x0005
input_type: input
data_type: uint16
scan_interval: 10
- name: ComfoAirQ Attic Active error 5
unique_id: comfoairq_attic_active_error_5
slave: 1
address: 5 # 0x0006
input_type: input
data_type: uint16
scan_interval: 10
- name: ComfoAirQ Attic Value Boost Timer
unique_id: comfoairq_attic_value_boost_timer
slave: 1
address: 4 # 0x0005
input_type: holding
scan_interval: 10
scale: 0.0166666666666667
unit_of_measurement: "min"
device_class: duration
# ---- Airflow (m³/h) ----
- name: ComfoAirQ Attic Airflow
unique_id: comfoairq_attic_airflow
slave: 1
address: 6 # 0x0007
input_type: input
data_type: uint16
unit_of_measurement: "m³/h"
precision: 0
scan_interval: 5
# ---- Temperatures (°C ×10 -> scale 0.1) ----
- name: ComfoAirQ Attic Room temperature
unique_id: comfoairq_attic_t_room
slave: 1
address: 7 # 0x0008
input_type: input
data_type: int16
scale: 0.1
precision: 1
unit_of_measurement: "°C"
scan_interval: 10
- name: ComfoAirQ Attic Extract temperature
unique_id: comfoairq_attic_t_extract
slave: 1
address: 8 # 0x0009
input_type: input
data_type: int16
scale: 0.1
precision: 1
unit_of_measurement: "°C"
scan_interval: 10
- name: ComfoAirQ Attic Exhaust temperature
unique_id: comfoairq_attic_t_exhaust
slave: 1
address: 9 # 0x000A
input_type: input
data_type: int16
scale: 0.1
precision: 1
unit_of_measurement: "°C"
scan_interval: 10
- name: ComfoAirQ Attic Outdoor temperature
unique_id: comfoairq_attic_t_outdoor
slave: 1
address: 10 # 0x000B
input_type: input
data_type: int16
scale: 0.1
precision: 1
unit_of_measurement: "°C"
scan_interval: 5
- name: ComfoAirQ Attic Supply temperature
unique_id: comfoairq_attic_t_supply
slave: 1
address: 11 # 0x000C
input_type: input
data_type: int16
scale: 0.1
precision: 1
unit_of_measurement: "°C"
scan_interval: 10
# ---- Humidity (%; no scaling) ----
- name: ComfoAirQ Attic Room humidity
unique_id: comfoairq_attic_h_room
slave: 1
address: 12 # 0x000D
input_type: input
data_type: uint16
unit_of_measurement: "%"
precision: 0
scan_interval: 10
- name: ComfoAirQ Attic Extract humidity
unique_id: comfoairq_attic_h_extract
slave: 1
address: 13 # 0x000E
input_type: input
data_type: uint16
unit_of_measurement: "%"
precision: 0
scan_interval: 10
- name: ComfoAirQ Attic Exhaust humidity
unique_id: comfoairq_attic_h_exhaust
slave: 1
address: 14 # 0x000F
input_type: input
data_type: uint16
unit_of_measurement: "%"
precision: 0
scan_interval: 10
- name: ComfoAirQ Attic Outdoor humidity
unique_id: comfoairq_attic_h_outdoor
slave: 1
address: 15 # 0x0010
input_type: input
data_type: uint16
unit_of_measurement: "%"
precision: 0
scan_interval: 10
- name: ComfoAirQ Attic Supply humidity
unique_id: comfoairq_attic_h_supply
slave: 1
address: 16 # 0x0011
input_type: input
data_type: uint16
unit_of_measurement: "%"
precision: 0
scan_interval: 10
# # ---- CO₂ zones (ppm) ----
# - name: ComfoAirQ Attic CO2 zone 1
# unique_id: comfoairq_attic_co2_1
# slave: 1
# address: 17 # 0x0012
# input_type: input
# data_type: uint16
# unit_of_measurement: "ppm"
# - name: ComfoAirQ Attic CO2 zone 2
# unique_id: comfoairq_attic_co2_2
# slave: 1
# address: 18 # 0x0013
# input_type: input
# data_type: uint16
# unit_of_measurement: "ppm"
# - name: CO2 zone 3
# unique_id: comfoairq_attic_co2_3
# slave: 1
# address: 19 # 0x0014
# input_type: input
# data_type: uint16
# unit_of_measurement: "ppm"
# - name: CO2 zone 4
# unique_id: comfoairq_attic_co2_4
# slave: 1
# address: 20 # 0x0015
# input_type: input
# data_type: uint16
# unit_of_measurement: "ppm"
# - name: CO2 zone 5
# unique_id: comfoairq_attic_co2_5
# slave: 1
# address: 21 # 0x0016
# input_type: input
# data_type: uint16
# unit_of_measurement: "ppm"
# - name: CO2 zone 6
# unique_id: comfoairq_attic_co2_6
# slave: 1
# address: 22 # 0x0017
# input_type: input
# data_type: uint16
# unit_of_measurement: "ppm"
# - name: CO2 zone 7
# unique_id: comfoairq_attic_co2_7
# slave: 1
# address: 23 # 0x0018
# input_type: input
# data_type: uint16
# unit_of_measurement: "ppm"
# - name: CO2 zone 8
# unique_id: comfoairq_attic_co2_8
# slave: 1
# address: 24 # 0x0019
# input_type: input
# data_type: uint16
# unit_of_measurement: "ppm"
#
# # ---- Filter ----
- name: ComfoAirQ Attic Filter days remaining
unique_id: comfoairq_attic_filter_days_remaining
slave: 1
address: 25 # 0x001A
input_type: input
data_type: uint16
unit_of_measurement: "days"
precision: 0
scan_interval: 7200
# Current ventilation preset (holding reg 0x0001 → address 0), 0..3
- name: ComfoAirQ Attic Ventilation preset
unique_id: comfoairq_attic_vent_preset
slave: 1
address: 0
input_type: holding
data_type: uint16
precision: 0
scan_interval: 10
# External temperature setpoint (holding reg 0x0004 → address 3), °C×10 → scale 0.1
- name: ComfoAirQ Attic External setpoint
unique_id: comfoairq_attic_external_setpoint
slave: 1
address: 3
input_type: holding
data_type: uint16
scale: 0.1
precision: 1
unit_of_measurement: "°C"
scan_interval: 10
binary_sensors:
# ---- Discrete inputs (read‑only) ----
- name: ComfoAirQ Attic Error flag
unique_id: comfoairq_attic_error_flag
slave: 1
address: 0 # 0x0001
input_type: discrete_input
device_class: problem
scan_interval: 10
- name: ComfoAirQ Attic Standby (status)
unique_id: comfoairq_attic_standby_status
slave: 1
address: 1 # 0x0002
input_type: discrete_input
scan_interval: 10
- name: ComfoAirQ Attic ComfoHood active
unique_id: comfoairq_attic_hood_active
slave: 1
address: 2 # 0x0003
input_type: discrete_input
scan_interval: 10
- name: ComfoAirQ Attic Filter dirty
unique_id: comfoairq_attic_filter_dirty
slave: 1
address: 3 # 0x0004
input_type: discrete_input
device_class: problem
scan_interval: 300
switches:
# ---- Coils (writeable booleans) ----
- name: ComfoAirQ Attic Reset errors
unique_id: comfoairq_attic_reset_errors
slave: 1
address: 0 # coil 0x0001
write_type: coil
verify:
address: 0
state_on: 1
state_off: 0
delay: 1
- name: ComfoAirQ Attic Preset Away
unique_id: comfoairq_attic_preset_away
slave: 1
address: 1 # coil 0x0002
write_type: coil
verify:
address: 1
state_on: 1
state_off: 0
delay: 1
- name: ComfoAirQ Attic Preset 1 (Low)
unique_id: comfoairq_attic_preset_1
slave: 1
address: 2 # coil 0x0003
write_type: coil
verify:
address: 2
state_on: 1
state_off: 0
delay: 1
- name: ComfoAirQ Attic Preset 2 (Medium)
unique_id: comfoairq_attic_preset_2
slave: 1
address: 3 # coil 0x0004
write_type: coil
verify:
address: 3
state_on: 1
state_off: 0
delay: 1
- name: ComfoAirQ Attic Preset 3 (High)
unique_id: comfoairq_attic_preset_3
slave: 1
address: 4 # coil 0x0005
write_type: coil
verify:
address: 4
state_on: 1
state_off: 0
delay: 1
- name: ComfoAirQ Attic Auto mode
unique_id: comfoairq_attic_auto_mode
slave: 1
address: 5 # coil 0x0006
write_type: coil
verify:
address: 5
state_on: 1
state_off: 0
delay: 1
- name: ComfoAirQ Attic Boost
unique_id: comfoairq_attic_boost
slave: 1
address: 6 # coil 0x0007
write_type: coil
verify:
address: 6
state_on: 1
state_off: 0
delay: 1
- name: ComfoAirQ Attic Away function
unique_id: comfoairq_attic_away_function
slave: 1
address: 7 # coil 0x0008
write_type: coil
verify:
address: 7
state_on: 1
state_off: 0
delay: 1
- name: ComfoAirQ Attic ComfoCool enable
unique_id: comfoairq_attic_comfocool_enable
slave: 1
address: 8 # coil 0x0009
write_type: coil
verify:
address: 8
state_on: 1
state_off: 0
delay: 1
# Climate
climates:
- name: "ComfoAirQ Attic"
unique_id: comfoairq_attic_climate
slave: 1
# Current temperature = Extract temperature (input reg 0x0009 → address 8)
address: 8
input_type: input
data_type: int16
scale: 0.1 # applies to current temp AND target temp register
precision: 1
temperature_unit: C
min_temp: 18
max_temp: 24
temp_step: 3
scan_interval: 10
# Target temperature writes to External Setpoint (holding 0x0004 → address 3)
target_temp_register: 3
# Fan modes mapped to Ventilation Preset (holding 0x0001 → address 0)
fan_mode_register:
address: 0
values:
state_fan_auto: 0
state_fan_low: 1
state_fan_medium: 2
state_fan_high: 3
matt82
29. April 2026 um 12:24
5
Hat jemand eine Idee, wie ich den Bypass über die Modbus Register aktivieren kann?
