From afae5d4ebce785c9988d01d5038e69f3d3c5e62a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Per=20Sandstr=C3=B6m?= <per.j.sandstrom@gmail.com>
Date: Thu, 25 Aug 2016 10:38:14 +0200
Subject: [PATCH] modbus write register service

---
 source/_components/modbus.markdown | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/source/_components/modbus.markdown b/source/_components/modbus.markdown
index 9f206276fc7..7a07e8aa244 100644
--- a/source/_components/modbus.markdown
+++ b/source/_components/modbus.markdown
@@ -57,6 +57,14 @@ Configuration variables:
 - **bytesize** (*Required*): The bytesize for the serial connection.
 - **parity** (*Required*): The parity for the serial connection.
 
+### {% linkable_title Services %}
+
+
+| Service | Description |
+| ------- | ----------- |
+| write_register | Write single register. Requires `unit`, `address` and `value` fields. |
+
+
 ## {% linkable_title Building on top of Modbus %}
 
  - [Modbus Sensor](/components/sensor.modbus/)