Modbus and Heat pump

Hello everyone, I’m new here and am trying to read my heat pump via Modbus.
I can already read temperatures with Home Assistant.
Now I’m trying to read the on/off switching status.
I have the following information:
Registeradress 0
Data content Bit0
Remarks 0= power off 1= power on
How do I define the query here?

I defined my query for the temperature above as follows:

type or paste code here

- name: water_temperature_top
unique_id: water_temperature_top
device_class: temperature
unit_of_measurement: "°F"
slave: 1
input_type: holding
address: 101
precision: 2
scan_interval: 10
That works

Regards, Volker