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SmlReaderBinding Samples

Udo Hartmann edited this page Jun 12, 2016 · 3 revisions

As there is no such binding like SmlReaderBinding and no documentation, can we delete this page?

As mentioned at the documentation of SmlReaderBinding, the binding is capable to use the transformation service provided by the openHAB runtime. To do so, you have to provide the type of service and the function to transform the value from your SML device in your binding configuration.

Supported Transformation services

  • JS

  • XSLT



With transformation

The shown item definition use the JS (JavaScript) service to transform the value with the function smlreader_kilo.js.

Number Obis_180 "Bezug Gesamt [%.2f kWh]" (g_energy) { smlreader="device=edl300,obis=1-0:1.8.0,transform=JS(smlreader_kilo.js)" }

Without Transformation

The shown item definition doesn’t use any transformation, so the item is refreshed with the value from the configured SML device 'as is'.

Number Obis_180 "Bezug Gesamt [%.2f kWh]" (g_energy) { smlreader="device=edl300,obis=1-0:1.8.0" }

Transformation function

In order to transform a value returned by SmlReaderBinding, you have to provide the transformation function, which in fact is just a simple file containing the transformation logic. openHAB looks after the transformation files in the folder '${openhab_home}/configurations/transform'.

Sample: transform 'Wh' to 'kWh'

  1. Create the (text) file 'smlreader_kilo.js' at the folder '${openhab_home}/configurations/transform'.

  2. Open the file with your preferred editor.

  3. Copy and paste the source at the end of this section.

  4. Save and close the file.

(function(i) {
    var kilo = i / 1000;
    return kilo;

feature overview


Setup intro

Linux and OS X





User Interfaces



(link to openHAB forum)



Application Integration



A good source of inspiration and tips from users gathered over the years. Be aware that things may have changed since they were written and some examples might not work correctly.

Please update the wiki if you do come across any out of date information.

Binding configurations

Use case examples

Item definition examples

Sitemap definition examples

Collections of Rules on a single page

Single Rules


Syntax highlighting for external editors

Release Notes

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