ioBroker.legrand-ecocompteur

legrand-ecocompteur adapter for ioBroker

Adapter for the Legrand Ecocompteur module (aka. Legrand Measurement Concentrator EMDX³ 412000).

This is a power measurement device with it's own web interface. The adapter utilises that web interface by:

• Polling for instantaneous power readings (read in a JSON response).
• Polling the device's index page to read the TIC interface. TIC stands for Télé-Information Client which is a French construct. This value is generally read from a utility billing meter connected to the Ecocompteur.

These objects are created for each of the 5 circuits the Ecocompteur reads plus overall total:

• Instantaneous power (in Watts).
• Total cumulated energy measured while the adapter was running (in kWh).

A further object is created to store the TIC interface value.

Note the Ecocompteur's Fragile IP Stack

Through testing it has been noted that the Ecocompteur has a rather fragile IP stack. Sometimes the stack can 'hang' and stop responding to requests, although in the author's experience, that was tracked to non-RFC compliant requests coming from another home automation device.

Nevertheless, it would be prudent to mitigate for this risk by placing the device behind a simple Nginx micro-caching reverse proxy. Example Nginx configuration for an Ecocompteur at http://192.168.0.10/ (hence set BaseURL settings for this adapter to http://<Nginx address>:8080/le/):

proxy_cache_path /tmp/cache keys_zone=cache:32k levels=1 inactive=10s max_size=256k;

server {
    listen 8080;

    proxy_cache cache;
    proxy_cache_valid 200 1s;
    location /le/ {
        proxy_pass http://192.168.0.10/;
    }
}

Configuration

The following configuration is required:

• Base URL of device.
• JSON polling interval (in seconds).
• Index polling interval (in seconds).
• Validation: maximum circuit reading (in Watts).

Changelog

0.0.6

• (Robin Rainton) Change IP address setting to base URL. Settings will need to be updated.
• (Robin Rainton) Fixed timeout handling. Parse readings from index HTML. Refactor to use more promises & single interval timer.

0.0.4

• (Robin Rainton) Added reading validation filter.

0.0.3

• (Robin Rainton) initial clean release.

License

MIT License

Copyright (c) 2020 Robin Rainton [e-mail]

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.