Hi
I have a Daikin EWYQ025BAWP outdoor unit for ac controlled with a BRC21A52. I spoke with Daikin about 3rd party control and they advised I need a modbus interface RTD-W which I have installed.
I have connected the modbus to the network using a Waveshare to Ethernet adapter set to TCP to RTU.
I need help with understanding how to input the modbus registers into Home Assistant if anyone can advise please…
http://www.realtime-controls.co.uk/rtd/EN%20RTD-W%20Installation%20Instructions%2020670-1.07.pdf
modbus:
- name: "Daikin Chiller"
type: tcp
host: 172.16.1.114
port: 502
I have finally managed to get the modbus interface working with my Daikin Chiller. I can now do some basic functions of the remote controller, turn on/off and set heat/cool. I’m struggling to build a climate card and also read the temp sensors properly. Can anyone help with my config please. Im not sure if I have the data type correct for the temp sensors it just shows 327.7 for all the sensors.
# Daikin HVAC
modbus:
- name: "Daikin Chiller"
type: tcp
host: 172.16.1.114
port: 502
switches:
- name: Daikin AC Chiller On/Off
unique_id: diakin_ac_chiller_on_off
slave: 1
address: 4
command_on: 1
command_off: 0
verify:
input_type: holding
delay: 10
address: 4
state_on: 1
state_off: 0
binary_sensors:
- name: Daikin AC Chiller Status
unique_id: daikin_ac_chiller_status
slave: 1
address: 70
scan_interval: 5
input_type: input
sensors:
- name: hvac_leaving_water_setpoint_heating
slave: 1
address: 1
scan_interval: 10
input_type: holding
- name: hvac_leaving_water_setpoint_cooling
slave: 1
address: 2
scan_interval: 10
input_type: holding
- name: hvac_heating_cooling_status
slave: 1
address: 3
scan_interval: 10
input_type: holding
- name: hvac_outdoor_temp
slave: 1
address: 133
scan_interval: 10
state_class: measurement
scale: 0.01
unit_of_measurement: °C
precision: 1
data_type: int16
- name: hvac_return_water_temp
slave: 1
address: 131
state_class: measurement
scale: 0.01
unit_of_measurement: °C
precision: 1
data_type: int16
- name: hvac_leaving_water_temp
slave: 1
address: 123
state_class: measurement
scale: 0.01
unit_of_measurement: °C
precision: 1
data_type: int16
climates:
- name: "hvac_heating_climate"
slave: 1
address: 1
input_type: holding
max_temp: 45
min_temp: 18
offset: 0
precision: 1
scale: 0.01
target_temp_register: 1
temp_step: 0.5
temperature_unit: C
hvac_onoff_register: 4
write_registers: true
hvac_mode_register:
address: 3
values:
state_heat: 1
state_cool: 2
Hi
Some of it yes.
I can read all the sensor values but can’t seem to work out how to get a thermostat card to work properly and be able to change the temperature settings.
