home-assistant.io/source/_components/binary_sensor.modbus.markdown

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layout	title	description	date	sidebar	comments	sharing	footer	logo	ha_category	ha_release	ha_iot_class
page	Modbus Binary Sensor	Instructions on how to set up Modbus binary sensors within Home Assistant.	2016-09-13 12:02	true	false	true	true	modbus.png	Binary Sensor	0.28	Local Push

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

{% linkable_title 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
    coils:
      - name: Sensor1
        slave: 1
        coil: 100
      - name: Sensor2
        slave: 1
        coil: 110

Configuration variables:

• coils array (Required): The array contains a list of coils to read from.
  • name (Required): Name of the sensor.
  • slave (Required): The number of the slave (Optional for TCP and UDP Modbus).
  • coil (Required): Coil number.

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

{% linkable_title Full example %}

Example a sensor with a 10 seconds scan interval:

binary_sensor:
  - platform: modbus
    scan_interval: 10
    coils:
      - name: Sensor1
        slave: 1
        coil: 100
      - name: Sensor2
        slave: 1
        coil: 110