DSMR or Slimme meter


A sensor platform for Dutch Smart Meters which comply to DSMR (Dutch Smart Meter Requirements), also known as ‘Slimme meter’ or ‘P1 poort’.

  • Currently support DSMR V2.2 and V4 through the dsmr_parser module by Nigel Dokter.
  • For official information about DSMR refer to: DSMR Document
  • For unofficial hardware connection examples refer to: Domoticx

This component is known to work for:

  • Iskra ME382 / MT382 (DSMR 2.2)
  • Landis+Gyr E350 (DMSR 4)
  • Landis+Gyr ZCF110 / ZM F110 (DSMR 4.2)
  • Kaifa E0026
  • Kamstrup 382JxC (DSMR 2.2)

USB serial converters:

  • Cheap (Banggood/ebay) Generic PL2303
  • https://sites.google.com/site/nta8130p1smartmeter/webshop
  • https://www.sossolutions.nl/slimme-meter-kabel

Serial to network proxies:

  • ser2net - http://ser2net.sourceforge.net/
# Example configuration.yaml entry
sensor:
  - platform: dsmr

Configuration Variables

port

(string)(Optional)Serial port to which Smartmeter is connected (default: /dev/ttyUSB0 (connected to USB port)). For remote (i.e. ser2net) connections, use TCP port number to connect to (i.e. 2001).

host

(string)(Optional)Host to which Smartmeter is connected (default: ‘’ (connected via serial or USB, see port)). For remote connections, use IP address of host to connect to (i.e. 192.168.1.13).

name

(string)(Optional)Version of DSMR used by meter. Choices: 2.2, 4, 5. Defaults to 2.2.

Full configuration examples can be found below:

# Example configuration.yaml entry for USB/serial connected Smartmeter
sensor:
  - platform: dsmr
    port: /dev/ttyUSB1
    dsmr_version: 4

group:
  meter_readings:
    name: Meter readings
    entities:
      - sensor.power_consumption_low
      - sensor.power_consumption_normal
      - sensor.power_production_low
      - sensor.power_production_normal
      - sensor.gas_consumption
# Example configuration.yaml entry for remote (TCP/IP, i.e. via ser2net) connection to host which is connected to Smartmeter
sensor:
  - platform: dsmr
    host: 192.168.1.13
    port: 2001
    dsmr_version: 4

group:
  meter_readings:
    name: Meter readings
    entities:
      - sensor.power_consumption_low
      - sensor.power_consumption_normal
      - sensor.power_production_low
      - sensor.power_production_normal
      - sensor.gas_consumption

Optional configuration example for ser2net:

# Example /etc/ser2net.conf for proxying USB/serial connections to DSMRv4 smart meters
2001:raw:600:/dev/ttyUSB0:115200 NONE 1STOPBIT 8DATABITS XONXOFF LOCAL -RTSCTS

HASSbian users have to give dialout permission to the user homeassistant:

$ sudo usermod -a -G dialout homeassistant

and after that you need to reboot!

$ sudo reboot

Technical overview

DSMR is a standard to which Dutch smartmeters must comply. It specifies that the smartmeter must send out a ‘telegram’ every 10 seconds over a serial port.

The contents of this telegram differ between version but they generally consist of lines with ‘obis’ (Object Identification System, a numerical ID for a value) followed with the value and unit.

This module sets up a asynchronous reading loop using the dsmr_parser module which waits for a complete telegram, parser it and puts it on an async queue as a dictionary of obis/object mapping. The numeric value and unit of each value can be read from the objects attributes. Because the obis are know for each DSMR version the Entities for this component are create during bootstrap.

Another loop (DSMR class) is setup which reads the telegram queue, stores/caches the latest telegram and notifies the Entities that the telegram has been updated.