add link to modbus.org

This commit is contained in:
Fabian Affolter 2015-06-27 16:15:18 +02:00
parent f4b24b5541
commit 3aa73f6c86

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@ -10,7 +10,9 @@ footer: true
---
<img src='/images/supported_brands/modbus.png' class='brand pull-right' />
Modbus is a serial communication protocol to control PLCs. It currently supports sensors and switches which can be controlled over serial, TCP and UDP connections.
[Modbus](http://www.modbus.org/) is a serial communication protocol to control PLCs (Programmable logic controller). It currently supports sensors and switches which can be controlled over serial, TCP, and UDP connections.
To add modbus to your installation, add the following to your `configuration.yaml` file:
```yaml
# Example configuration.yaml entry