MQTT subscribe Topic?

[knalltuete86]

Hi,
I'm using ebusd 23.1.23.1 together with mosquitto and ioBroker. All measurement values are sent via MQTT (mosquitto) to ioBroker - works well.

I do use the following EBUSD_OPTS:

EBUSD_OPTS="--configpath=/etc/ebusd/configs --device=ens:192.168.178.59:9999 --mqttport=1883 --mqttuser=USER --mqttpass=PASS --mqtttopic=/Home/Heatpump/%circuit/%name --mqttjson --mqttvar=filter-direction=r|u|^w --pollinterval=15

I would like to write values via MQTT to my ebus, for example setting the operation mode of my Hotwater Circuit HwcOpMode
Possible values are off and auto.

I can write them manually via CLI by running

ebusctl write -c 700 HwcOpMode off --> "done"

The value is changed accordingly.

Now I tried to do the same via MQTT by writing from ioBroker to the Topic /Home/Heatpump/700/HwcOpMode/set as I set it via --mqtttopic in EBUSD_OPTS. The Payload is e.g. off, but I also tried JSON-Format {opmode: {value: off}}

Via mosquitto_sub I can see that mosquitto receives the correct value.

But unfortunately ebusd does nothing, even no Log message about received MQTT Message.

Do I use the correct MQTT-Topic? Anyone who is using a similiar Config and can share his/her results?

Regards

[knalltuete86]

Meanwhile I added the --accesslevel=* to my EBUSD_OPTS - but still not getting any reaction.

Therefor I added option --loglevel=debug and checked the logs. For my example above I found the message

2023-07-17 13:34:13.010 [mqtt debug] publish /Home/Heatpump/700/HwcOpMode { "opmode": {"value": "auto"}}

So the Topic is fine from my understanding. But I cannot find any information about subscription.

[knalltuete86]

Got it!

The root cause was about the prefix "/" in --mqtttopic. It seems ebusd handles it correctly while publishing, but not while subscribing.

Hope this helps others facing the same issue.