Fluvius P1 to MQTT

MQTT client for Fluvius smart energy meter (DSMR5) - "Slimme Meter". Written in Python 3.x

Connect Smart Meter via a P1 USB cable to e.g. Raspberry Pi

Application will continuously read energy meter and parse telegrams which are send onto a MQTT broker

Includes Home Assistant MQTT Auto Discovery

Supported data fields:

OBIS CODE	Description	MQTT Tag	Unit
0-0:96.1.4	Version information	version
0-0:96.1.1	Equipment identifier	serial
0-0:1.0.0	Meter timestamp value and Meter timestamp DST	meter_ts_val;meter_ts_dst
0-0:96.7.21.255	Number power failures	power_failures
0-0:96.7.9.255	Number long power failures	long_power_failures
0-0:96.14.0	Tariff indicator electricity	tariff_indicator
1-0:21.7.0	Instantaneous active power L1 +P	P_L1_cons	kW
1-0:41.7.0	Instantaneous active power L2 +P	P_L2_cons	kW
1-0:61.7.0	Instantaneous active power L3 +P	P_L3_cons	kW
1-0:22.7.0	Instantaneous active power L1 -P	P_L1_prod	kW
1-0:42.7.0	Instantaneous active power L2 -P	P_L2_prod	kW
1-0:62.7.0	Instantaneous active power L3 -P	P_L3_prod	kW
1-0:1.7.0	Actual electricity power delivered +P	P_cons	kW
1-0:2.7.0	Actual electricity power received -P	P_prod	kW
0-1:24.2.1	Gas consumption [m\u00b3]	gas_cons	kW
0-1:96.1.0	Equipment Identifier	serial
1-0:1.8.1	Electricity consumed (Tariff 1)	elec_cons_t1	kWh
1-0:1.8.2	Electricity consumed (Tariff 2)	elec_cons_t2	kWh
1-0:2.8.1	Electricity produced (Tariff 1)	elec_prod_t1	kWh
1-0:2.8.2	Electricity produced (Tariff 2)	elec_prod_t2	kWh
1-0:1.8.3	Electricity consumed	elec_cons	kWh
1-0:2.8.3	Electricity produced	elec_prod	kWh
1-0:32.7.0	Instantaneous voltage L1	V_L1	V
1-0:52.7.0	Instantaneous voltage L2	V_L2	V
1-0:72.7.0	Instantaneous voltage L3	V_L3	V
1-0:31.7.0	Instantaneous current L1	I_L1	A
1-0:51.7.0	Instantaneous current L2	I_L2	A
1-0:71.7.0	Instantaneous current L3	I_L3	A
1-0:32.36.0	Number of voltage swells L1	V_L1_sw
1-0:52.36.0	Number of voltage swells L2	V_L2_sw
1-0:72.36.0	Number of voltage swells L3	V_L3_sw
1-0:32.32.0	Number of voltage sags L1	V_L1_sa
1-0:52.32.0	Number of voltage sags L2	V_L2_sa
1-0:72.32.0	Number of voltage sags L3	V_L3_sa
0-0:96.3.10	Breaker state	breaker
0-0:17.0.0	Limiter threshold	limiter
1-0:31.4.0	Fuse supervision threshold L1	fuse
0-0:96.13.0	Text message	text
1-0:1.6.0	Monthly peak timestamp, Monthly peak DST and Monthly peak value	m_peak_ts;m_peak_dst;m_peak_val	kW
0-0:98.1.0	Historical peaks	historical_peaks
1-0:1.4.0	Current average demand	avg_dem	kW

In dsmr50.py, specify:

Which messages to be parsed
Description and units
MQTT topics and tags
MQTT broadcast frequency
Possible multiplications to apply to the measurements
Auto discovery for Home Assistant

A typical MQTT message broadcasted with meter data

{
    "I_L1": 2.81,
    "P_L1_cons": 0.564,
    "P_L1_prod": 0,
    "P_cons": 0.564,
    "P_prod": 0,
    "V_L1": 235.8,
    "avg_dem": 0.39,
    "breaker": "1",
    "elec_cons": 9161.176,
    "elec_cons_t1": 4567.905,
    "elec_cons_t2": 4593.271,
    "elec_prod": 6488.214,
    "elec_prod_t1": 4593.161,
    "elec_prod_t2": 1895.053,
    "fuse": 999,
    "limiter": 999.9,
    "m_peak_dst": "S",
    "m_peak_ts": 231005190000,
    "m_peak_val": 3.924,
    "meter_ts_dst": "S",
    "meter_ts_val": 231012214128,
    "serial": "1SAG0000000262",
    "tariff_indicator": "0001",
    "text": "",
    "timestamp": 1697139688,
    "version": "50217"
}

A typical MQTT message broadcasted with Home Assistant configuration

{
    "unique_id": "m_peak",
    "state_topic": "fluvius_262/elec",
    "name": "Monthly peak",
    "value_template": "{{ value_json.m_peak_val }}",
    "icon": "mdi:gauge",
    "device": {
        "identifiers": [
            "fluvius"
        ]
    }
}

A virtual DSMR parameter is implemented (el_consumed and el_returned, which is sum of tarif1 and tarif2 (nacht/low en dag/normal tariff)) - as some have a dual tariff meter, while energy company administratively considers this as a mono tarif meter.

In config.rename.py, specify:

MQTT server details
Logging level
Auto discovery on/off

-ATTENTION:
-Please open your P1 port through the Fluvius portal: https://mijn.fluvius.be/
-See Poortbeheer > Check that "Poort open"

Requirements

paho-mqtt
pyserial
python 3.x

Test the USB connection before starting the scripts:

Install packages and dependencies:
- sudo apt-get install -y python3-paho-mqtt python3-serial python3-pip python3-crcmod python3-tabulatesudo
- pip3 install paho-mqtt --usersudo
- pip3 install persist-queue --user
- sudo chmod o+rw /dev/ttyUSB0
Test if you can read the P1 with your USB device:
- python3 -m serial.tools.miniterm /dev/ttyUSB0 115200 --xonxoff

Results should be:

 --- Miniterm on /dev/ttyUSB0  115200,8,N,1 ---
 --- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
 925*m3)
 !CE4E
 /FLU5\253xxxxxx_A

 0-0:96.1.4(xxxxx)
 0-0:96.1.1(xxxxxxxxxxxxxxxxxxxxxxxxxxxx)
 0-0:1.0.0(210204163628W)
 1-0:1.8.1(000439.094kWh)```

Installation:

Install Python packages:
- sudo pip3 install paho-mqtt --user
- sudo pip3 install persist-queue --user
Install from Git and configure:
- cd /opt
- git clone https://github.com/smartathome/fluvius2mqtt.git
- cd fluvius2mqtt/
- sudo vi systemd/fluvius-mqtt.service
Adapt ExecStart under [Service] to ExecStart=/opt/fluvius2mqtt/fluvius-mqtt.py
- sudo cp -p systemd/fluvius-mqtt.service /etc/systemd/system
Edit the MQTT configuration and know that the MQTT_TOPIC_PREFIX = "fluvius" with last 3 digits of meter serial will show these messages as topic fluvius_XXX/. Configuration will be shown as homeassistant/sensor/fluvius_XXX/
- sudo cp -p config.rename.py config.py && sudo vi config.py

Test locally if everything is working properly

python3 fluvius-mqtt.py

user@server:/opt/fluvius2mqtt $ python3 fluvius-mqtt.py 
fluvius-mqtt INFO: FUNCTION:<module> LINE:70: Starting /opt/fluvius2mqtt/fluvius-mqtt.py; version = 1.0.0
fluvius-mqtt.mqtt.mqtt INFO: FUNCTION:__init__ LINE:103: >> paho-mqtt version = 1.5.1
fluvius-mqtt.mqtt.mqtt INFO: FUNCTION:__init__ LINE:117: MQTT Client ID = mqtt-fluvius
fluvius-mqtt.P1_serial INFO: FUNCTION:__init__ LINE:68: Using USB device /dev/ttyUSB0 with baud 115200
fluvius-mqtt.mqtt.mqtt INFO: FUNCTION:__internet_on LINE:229: Internet connectivity to MQTT broker 192.168.10.15 at port 1883 available
fluvius-mqtt.mqtt.mqtt INFO: FUNCTION:run LINE:576: Start mqtt loop...
fluvius-mqtt.hadiscovery INFO: FUNCTION:run LINE:158: Home Assistant config discovery is enabled
fluvius-mqtt.P1_parser INFO: FUNCTION:__decode_telegram_element LINE:162: Found 40 OBIS codes in config.py to parse from the meter
fluvius-mqtt.P1_parser INFO: FUNCTION:__decode_telegram_element LINE:175: Meter type found = /FLU5\253770234_A with DSMR version = 50217
fluvius-mqtt.P1_parser INFO: FUNCTION:__decode_telegram_element LINE:176: Meter serial found = 1SAG0000000262. Unless changed, the last 3 characters "262" are appended to your MQTT_TOPIC_PREFIX in config.py
fluvius-mqtt.P1_parser INFO: FUNCTION:__publish_telegram LINE:78: MQTT_TOPIC_PREFIX used for publishing data = fluvius_262/

Enable and start the service
- sudo systemctl enable fluvius-mqtt
- sudo systemctl start fluvius-mqtt

And check if it is running properly

sudo systemctl status fluvius-mqtt

user@server:/opt/fluvius2mqtt $ sudo systemctl status fluvius-mqtt
fluvius-mqtt.service - Fluvius smart energy meter P1
 Loaded: loaded (/etc/systemd/system/fluvius-mqtt.service; enabled; vendor preset: enabled)
 Active: active (running) since Tue 2023-09-26 22:21:06 CEST; 18h ago
 Main PID: 1026 (fluvius-mqtt.py)
  Tasks: 6 (limit: 1595)
    CPU: 56.349s
 CGroup: /system.slice/fluvius-mqtt.service
         └─1026 /usr/bin/python3 /opt/fluvius2mqtt/fluvius-mqtt.py
         ```

Use http://mqtt-explorer.com/ to test & inspect MQTT messages or use the MQTT browser from within Home Assistant

A test/dsmr.raw simulation file is provided. Set PRODUCTION = False in config.py to use the simulation file. In that case, no P1/serial connection is required.

Tested under Debian/Raspbian. Tested with DSMR v5.0 meter in Belgium. For other DSMR versions, dsmr50.py needs to be adapted. For all SMR specs, see Fluvius or netbeheer

Licence

GPL v3

Versions

1.0.0

Updated OBIS codes to match the Fluvius meter readings including monthly peak
Forked version 3.0.0 from https://github.com/hansij66/dsmr2mqtt

Name		Name	Last commit message	Last commit date
Latest commit History 46 Commits
log		log
mqtt		mqtt
systemd		systemd
test		test
.gitignore		.gitignore
LICENSE		LICENSE
P1_parser.py		P1_parser.py
P1_serial.py		P1_serial.py
README.md		README.md
config.rename.py		config.rename.py
dsmr50.py		dsmr50.py
fluvius-mqtt.py		fluvius-mqtt.py
hadiscovery.py		hadiscovery.py
telegraf-dsmr.conf		telegraf-dsmr.conf

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Fluvius P1 to MQTT

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