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explain DPL modes set through MQTT in more detail (#282)

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* explain DPL modes set through MQTT in more detail

* docs: DPL mode change through MQTT does not enable DPL
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Bernhard Kirchen 2023-07-02 14:11:23 +02:00 committed by GitHub
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docs/MQTT_Topics.md
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@ -173,7 +173,24 @@ cmd topics are used to set values. Status topics are updated from values set in
### Power Limiter topics
| Topic | R / W | Description | Value / Unit |
| Topic | R / W | Description | Value |
| --------------------------------------- | ----- | ---------------------------------------------------- | -------------------------- |
| powerlimiter/cmd/mode | W | Power Limiter operation mode | 0 - Normal operation, 1 - Fully disable, 2 - Solar Passthrough only |
| powerlimiter/status/mode | R | Get Power Limiter operation mode | see above |
| powerlimiter/cmd/mode | W | Power Limiter operation mode | see below |
| powerlimiter/status/mode | R | Get Power Limiter operation mode | see below |
Setting any of these modes through MQTT has *no* effect if the Power Limiter is
disabled by configuration in the web application. The Power Limiter will stay
off in that case.
Three modes are implemented:
* **0** - Normal operation: The Power Limiter works as configured through the
web application.
* **1** - Fully disable: The inverter is shut down and the Power Limiter stops
operating, as if it was disabled in the web application.
* **2** - Unconditional Solar Passthrough: The power limit is set such that all
solar power (adjusted for efficiency) is fed into the home. This is done
irrespective of grid consumption and without consuming energy from the
battery, which is the key difference to the regular Power Limiter Solar
Passthrouh feature. Essentially, the inverter mimics the behavior of a
traditional, non-smart inverter. This can be particularly useful in scenarios
where solar power is better stored elsewhere, such as in an electric car.