Modbus Binary Sensor

The modbus binary sensor allows you to gather data from Modbus coils.

Configuration

To use your Modbus binary sensors in your installation, add the following to your configuration.yaml file:

# Example configuration.yaml entry
binary_sensor:
  - platform: modbus
    inputs:
      - name: Sensor1
        hub: hub1
        slave: 1
        address: 100
      - name: Sensor2
        hub: hub1
        slave: 1
        address: 110
        input_type: discrete_input

Configuration Variables

inputs map | list Required

The array contains a list of coils and discrete inputs to read from.

name string Required

Name of the sensor.

hub string (Optional, default: default)

The name of the hub.

slave integer Required

The number of the slave (Optional for TCP and UDP Modbus).

address integer Required

Coil or discrete input Modbus address.

input_type string (Optional)

Modbus input type (coil, discrete_input), default coil.

device_class device_class (Optional, default: None)

The type/class of the binary sensor to set the icon in the frontend.

It’s possible to change the default 30 seconds scan interval for the sensor updates as shown in the Platform options documentation.

Full example

Example a sensor with a 10 seconds scan interval:

binary_sensor:
  - platform: modbus
    scan_interval: 10
    inputs:
      - name: Sensor1
        hub: hub1
        slave: 1
        address: 100
      - name: Sensor2
        hub: hub1
        slave: 1
        address: 110
        input_type: discrete_input