question

That would be so nice to have, as my Smartmeter published every 5 sec to Mqtt and we coult spare that EM24...

So, after writing here, I tried to implement it.My meter from the network operator is read out via Tasmota (a modified Tasmota which sends data every 2 seconds via MQTT to the broker).This is done simply via the D0 interface and infrared.

A script on the Cerbo then puts this into the DBUS and the rest works quite well.

Since my meter only outputs "import" "export" and "current consumption", I had to let the script L1 L2 L3 divide by 3.
Therefore the numbers between L1 to L3 are always the same.

This has the nice side effect that my 3 Victrons are now finally loaded with the same load. This is unfortunately not possible with the counter from Victron Energy (EM24). Why, I have not figured out and it is also demanded by many here in the forum - but this is another topic :)

@Marv21

thats looks good pls can you share this little script?

and one other question, may you can have a look at this question from me?

https://community.victronenergy.com/questions/126558/absolutes-verstandnis-problem-multiplus-im-ess-mod.html

regards

I’d like to see the script too. If I can see what dbus paths and settings you are using I can probably add them to my generic dbus-Mqtt-devices driver.

Please share your script.

I am also trying to connect an foreign meter with the cerbo and mqtt.

What values do I have to write?

I am currently messing around with your script @Marv21

I also added a fake charger for my GPU miner and a Shelly used to measure my PV output.

It works nicely now. Only problem i have that AC Input power sum is not shown on VRM Portal. Do you have any Idea what the reason could be?

By the way: I can get power values from all three phases with tasmora+SML with the script below. So no need for calulation. Maybe this works with your grid meter too. I also added energy out meter calculation from my NodeRed instance. But still getting no

@SailorM You ca find anything you need on the github page @Marv21 linked above in response to @gone-sailing.

The documentation by Victron was handy (https://github.com/victronenergy/venus/wiki/dbus) but coud be a bit more talking about every specific datapoint.

(Python script is getting a bit messy.)

>D

>B

=>sensor53 r 

>M 1 
+1,1,s,16,9600,MT175
1,77070100010800ff@1000,Verbrauch,KWh,Total_in,1
1,77070100020800ff@1000,Netzeinspeisung,KWh,Total_out,0
1,77070100100700ff@1,Leistung,W,Power_curr,16
1,77070100240700ff@1,Wirkleistung L1,W,Power_p1,1
1,77070100380700ff@1,Wirkleistung L2,W,Power_p2,1
1,770701004c0700ff@1,Wirkleistung L3,W,Power_p3,1
#

def on_message(client, userdata, msg):
    try:
        global powercurr, powercurr_p1, powercurr_p2, powercurr_p3, totalin, totalout
        if msg.topic == Zaehlersensorpfad:   # JSON String vom Zaehler Sensor auslesen
            if msg.payload != '{"value": null}' and msg.payload != b'{"value": null}':
                jsonpayload = json.loads(msg.payload)
                if "Power_curr" in jsonpayload["MT175"]:
                        powercurr = float(jsonpayload["MT175"]["Power_curr"])
                        print("Power from MQTT:" + f'{powercurr:.2f}')
                if "Power_p1" in jsonpayload["MT175"]:
                        powercurr_p1 = float(jsonpayload["MT175"]["Power_p1"])
                if "Power_p2" in jsonpayload["MT175"]:
                        powercurr_p2 = float(jsonpayload["MT175"]["Power_p2"])
                if "Power_p3" in jsonpayload["MT175"]:
                        powercurr_p3 = float(jsonpayload["MT175"]["Power_p3"])
                if "Total_in" in jsonpayload["MT175"]:
                        totalin = float(jsonpayload["MT175"]["Total_in"])
                        print("Energy_in from MQTT:" + f'{totalin:.2f}')
                #if "Total_out" in jsonpayload["MT175"]:
                #        totalout = float(jsonpayload["MT175"]["Total_out"])
            else:
                print("Antwort vom MQTT war Null und wurde ignoriert")
        if msg.topic == "nodered/grid/energy_out":
           totalout = float(msg.payload);
           print("Energy_out from MQTT:" + f'{totalout:.2f}')

    except Exception as e:
        logging.exception("Programm MQTTtoMeter ist abgestuerzt. (on message Funkion)")
        print(e)
        print("Im MQTTtoMeter Programm ist etwas beim auslesen der Nachrichten schief gegangen")

@Marv21

I have a system similar to yours. A bi-directional counter from Iskra and the reading head from Hichi. Then i transferred to IoBroker with a Wemos D1 using Tasmota.

I downloaded your script because it's actually exactly what I'm looking for. Unfortunately, I can't cope with it because my Python knowledge is zero. But I am in the process of learning and once wrote a first script which reads the MQTT data from the IoBroker and displays it on the screen.

Unfortunately I have no idea how to put it in your script.

iobroker now makes this data available via mqtt

Übersetzungsergebnisse

Thanks, I got it.

What would be interesting is a script with which I could emulate a PV inverter. Actually, you should be able to take this script, adjust the settings and set it as a PV inverter. I just don't know how to address the inverter.

@Marv21

First of all thanks for the script, it is exactly what I am looking for!

Unfortunately I have some problems to getting it to run.

On GitHub you say that you have to run Pah Client on your GXDevice.

I tried to execute "python -m ensurepip --upgrade pip install paho-mqtt" on my Cerbo GX but always get the error "No module named ensurepip".
I tried several thinks but without success.

I think that's the reason why your script always crashes on my CerboGX...?

Many thanks in advance!

Kai

root@einstein:~# python -m ensurepip --upgrade

/usr/bin/python: No module named ensurepip

:-(

Any other ideas?

Good evening,

There is a ready-made project on GitHub for exactly this. I also used this in conjunction with MQTT/ioBroker - Works quite well.

https://github.com/stormmurdoc/victron_sdm630_bridge

Good evening,

I got the script running thanks for the script in the first place but i only get zero Consumtion.

The wierd Thing is in Homeassistant i recive Messages fome the exact same Topic. Also im using the Mosquitto mqtt broke

Victon Console

INFO:root:House Consumption: 0

INFO:root:House Consumption: 0

INFO:root:House Consumption: 0

INFO:root:House Consumption: 0

Here is my python configuration the rest is default

# MQTT Setup

broker_address = "192.168.178.12"

MQTTNAME = "MQTTtoMeter"

Zaehlersensorpfad = "sonoff/0/StromVerbrauch"

Homeassistant MQtt messages

sonoff/0/StromVerbrauch/Power_curr

Nachricht 71 empfangen auf sonoff/0/StromVerbrauch/Power_curr um 20:26:

475

QoS: 0 - Retain: false

Nachricht 70 empfangen auf sonoff/0/StromVerbrauch/Power_curr um 20:26:

473

QoS: 0 - Retain: false

The Mosquitto Log also shows that the device is connected

1661453157: New connection from 192.168.178.95:57377 on port 1883.
1661453157: New client connected from 192.168.178.95:57377 as Victron (p2, c1, k60).

Hi there Victron experts,

I have been trying to follow this tutorial, but I can get this to work. It's my python knowledge. Can some one point mi in the right direction? I think that the script is running but my mqtt data isn't comming through?

Hi Flubber,

could you explain to me how to install ensurepip? I get the same error, even if

Python 3.8.13 is installed on my MP2.

/usr/bin/python3: No module named ensurepip