From 3aa73f6c86f2781cc62de6d4a46e06b5de03efdb Mon Sep 17 00:00:00 2001
From: Fabian Affolter <fabian@affolter-engineering.ch>
Date: Sat, 27 Jun 2015 16:15:18 +0200
Subject: [PATCH] add link to modbus.org

---
 source/components/modbus.markdown | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/source/components/modbus.markdown b/source/components/modbus.markdown
index 0ef74914b12..a0dcd86b762 100644
--- a/source/components/modbus.markdown
+++ b/source/components/modbus.markdown
@@ -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