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38 lines
965 B
Markdown
38 lines
965 B
Markdown
---
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layout: page
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title: "Modbus Binary Sensor"
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description: "Instructions on how to set up Modbus binary sensors within Home Assistant."
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date: 2016-09-13 12:02
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sidebar: true
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comments: false
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sharing: true
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footer: true
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logo: modbus.png
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ha_category: Binary Sensor
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ha_release: 0.28
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---
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The `modbus` binary sensor allows you to gather data from [Modbus](http://www.modbus.org/) coils.
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To use your Modbus binary sensors in your installation, add the following to your `configuration.yaml` file:
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```yaml
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# Example configuration.yml entry
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binary_sensor:
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platform: modbus
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coils:
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- name: Sensor1
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slave: 1
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coil: 100
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- name: Sensor2
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slave: 1
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coil: 110
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```
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Configuration variables:
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- **coils** array (*Required*): The array contains a list of coils to read from.
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- **name** (*Required*): Name of the sensor.
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- **slave** (*Required*): The number of the slave (Optional for tcp and upd Modbus).
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- **coil** (*Required*): Coil number.
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