Solax X1 Meter Mode

[RSDynamics]

My Tasmota Solax is running for a few years now and I am very happy with it. Thanks everyone that made that possible!
I have a question about the Solax X1 Meter Mode. https://tasmota.github.io/docs/SolaX-X1/#meter-mode

If I understand correctly the Meter Mode solution subscribes to an MQTT topic that publishes the current power at the home connection but I can't get it to work and it is not clear to me from reading the documentation. My main question is about setting up the rule correctly.

Tasmota is build with SUPPORT_MQTT_EVENT enabled. I am not sure if I need enable more?

What I did is let Home Assistant publish the current power that is measured with a Shelly at the home connection to a sensor topic.
With the Tasmota Solax X1 i want to consume that information so I can use it for the Meter mode.

The power sensor is published on: homeassistant/sensor/shellyem_b0f576_channel_1_power/state as you can see in the picture.

With my understanding of the documentation that lead to the following rule but unfortunately it did not work.
Rule1 ON mqtt#connected DO Subscribe PwrEvt, homeassistant/sensor ENDON
ON Event#PwrEvt#SML#shellyem_b0f576_channel_1_power/state DO EnergyConfig MeterPower %value% ENDON
ON Event#PwrEvt#SML#shellyem_b0f576_channel_1_energy/state DO EnergyConfig MeterImport %value% ENDON
ON Event#PwrEvt#SML#shellyem_b0f576_channel_1_energy_returned/state DO EnergyConfig MeterExport %value% ENDON

If there is anyone that can help me out to get this working it would be great!

[sfromis]

The Event trigger is single-level only. The mechanism is unrelated to MQTT, and the Subscribe command simply allows you to trigger an event in the style of the regular Event command, which does not allow # as part of the event name.

You'd need one Subscribe per field, including all object levels, to fully reference each field.

If your device is ESP32-based, I'd recommend replacing the usage of rules with Berry, which has much better features for handling MQTT payloads.

[RSDynamics]

Thanks for pointing me in the right direction with the rules.

My device is an ESP8285N08 and the Solax X1 firmware worked great so wanted to use what I was familiar with.
Together with Copilot I came to the following rules. Tested it with Rule1 and that worked. Power data was visible on the inverter display.

Rule1 ON mqtt#connected DO Subscribe Power_all, homeassistant/sensor/shellyem_b0f576_channel_1_power/state ENDON
ON Event#Power_all DO EnergyConfig MeterPower %value% ENDON

Rule2 ON mqtt#connected DO Subscribe Import_all, homeassistant/sensor/shellyem_b0f576_channel_1_energy/state; Subscribe Export_all, homeassistant/sensor/shellyem_b0f576_channel_1_energy_returned/state ENDON
ON Event#Import_all DO EnergyConfig MeterImport %value% ENDON
ON Event#Export_all DO EnergyConfig MeterExport %value% ENDON

Unfortunately, when active, no inverter information was displayed or transmitted anymore when firmware was in Gateway mode so looking into that now.

[SteWers]

Unfortunately, when active, no inverter information was displayed or transmitted anymore when firmware was in Gateway mode so looking into that now.

Yes, that's right. When ExportControl is enabled at the inverter, it will not report any information to the RS485 interface. Tasmota detects the inverter mode and switches automatically to corresponding mode.
The only way to get information when ExportControl is active, is the use of the SolaX Pocket Interface. There is a Tasmota driver for the SolaX Pocket Interface in development state. It will only be usable alternatively to the RS485 driver. This means, that a 2^nd ESP device must be set in place. You can also use an original SolaX Pocket Stick.

[RSDynamics]

Oh that's a bummer but thanks for the reply. Saves me some testing.